Commit Graph

557 Commits

Author SHA1 Message Date
Arnd Bergmann 30d8bb9003 more ti-sysc driver changes for omap variants for v5.4
Few changes mostly to deal with sgx SoC glue quirk for omap36xx that
 is needed for the related sgx SoC glue dts branch. The other changes
 are to simplify sysc_check_one_child() sysc_check_children() to be void
 functions, and detect d2d module when debugging is enabled.
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Merge tag 'omap-for-v5.4/ti-sysc-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/late

more ti-sysc driver changes for omap variants for v5.4

Few changes mostly to deal with sgx SoC glue quirk for omap36xx that
is needed for the related sgx SoC glue dts branch. The other changes
are to simplify sysc_check_one_child() sysc_check_children() to be void
functions, and detect d2d module when debugging is enabled.

* tag 'omap-for-v5.4/ti-sysc-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Detect d2d when debug is enabled
  bus: ti-sysc: Add module enable quirk for SGX on omap36xx
  bus: ti-sysc: Change return types of functions

Link: https://lore.kernel.org/r/pull-1567016893-318461@atomide.com-2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04 17:20:41 +02:00
Arnd Bergmann bf3176b350 Driver changes for ti-sysc for v5.4
Few changes to prepare for using a reset driver for PRM rstctrl mostly
 to deal with the clocks for reset. Then few minor clean-up patches and
 SPDX license identifier changes, and add a MAINTAINERs file entry.
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Merge tag 'omap-for-v5.4/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/late

Driver changes for ti-sysc for v5.4

Few changes to prepare for using a reset driver for PRM rstctrl mostly
to deal with the clocks for reset. Then few minor clean-up patches and
SPDX license identifier changes, and add a MAINTAINERs file entry.

* tag 'omap-for-v5.4/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: remove set but not used variable 'quirks'
  bus: ti-sysc: allow reset sharing across devices
  bus: ti-sysc: rework the reset handling
  bus: ti-sysc: re-order the clkdm control around reset handling
  bus: ti-sysc: Add missing kerneldoc comments
  bus: ti-sysc: Switch to SPDX license identifier
  dt-bindings: ti-sysc: Add SPDX license identifier
  MAINTAINERS: Add ti-sysc files under the OMAP2+ entry

Link: https://lore.kernel.org/r/pull-1566599057-142651@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04 17:20:04 +02:00
Arnd Bergmann bff00fdf03 i.MX drivers update for 5.4:
- A series from Anson Huang to add UID support for i.MX8 SoC and SCU
    drivers.
  - A series from Daniel Baluta to add DSP IPC driver for communication
    between host AP (Linux) and the firmware running on DSP embedded in
    i.MX8 SoCs.
  - A small fix for GPCv2 error code printing.
  - Switch from module_platform_driver_probe() to module_platform_driver()
    for imx-weim driver, as we need the driver to probe again when device
    is present later.
  - Add optional burst clock mode support for imx-weim driver.
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Merge tag 'imx-drivers-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers

i.MX drivers update for 5.4:
 - A series from Anson Huang to add UID support for i.MX8 SoC and SCU
   drivers.
 - A series from Daniel Baluta to add DSP IPC driver for communication
   between host AP (Linux) and the firmware running on DSP embedded in
   i.MX8 SoCs.
 - A small fix for GPCv2 error code printing.
 - Switch from module_platform_driver_probe() to module_platform_driver()
   for imx-weim driver, as we need the driver to probe again when device
   is present later.
 - Add optional burst clock mode support for imx-weim driver.

* tag 'imx-drivers-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: gpcv2: Print the correct error code
  bus: imx-weim: use module_platform_driver()
  firmware: imx: Add DSP IPC protocol interface
  soc: imx-scu: Add SoC UID(unique identifier) support
  bus: imx-weim: optionally enable burst clock mode
  firmware: imx: scu-pd: Add IRQSTR_DSP PD range
  firmware: imx: scu-pd: Add mu13 b side PD range
  firmware: imx: scu-pd: Rename mu PD range to mu_a
  soc: imx8: Add i.MX8MM UID(unique identifier) support
  soc: imx8: Add i.MX8MQ UID(unique identifier) support

Link: https://lore.kernel.org/r/20190825153237.28829-1-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-03 22:44:04 +02:00
Arnd Bergmann 2f7ce2aafa Allwinner drivers patches for 5.4
One driver to remove a redundant error message in the Allwinner RSB
 driver.
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Merge tag 'sunxi-drivers-for-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/drivers

Allwinner drivers patches for 5.4

One driver to remove a redundant error message in the Allwinner RSB
driver.

* tag 'sunxi-drivers-for-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  bus: sunxi-rsb: Remove dev_err() usage after platform_get_irq()

Link: https://lore.kernel.org/r/f9edfc8e-19b7-4b6e-897a-35f3bdcc8643.lettre@localhost
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-03 22:16:34 +02:00
Arnd Bergmann 34614c30bf Hisilicon fixes for v5.3-rc
- Fixed RCU usage in logical PIO
 - Added a function to unregister a logical PIO range in logical PIO
   to support the fixes in the hisi-lpc driver
 - Fixed and optimized hisi-lpc driver to avoid potential use-after-free
   and driver unbind crash
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Merge tag 'hisi-fixes-for-5.3' of git://github.com/hisilicon/linux-hisi into arm/fixes

Hisilicon fixes for v5.3-rc

- Fixed RCU usage in logical PIO
- Added a function to unregister a logical PIO range in logical PIO
  to support the fixes in the hisi-lpc driver
- Fixed and optimized hisi-lpc driver to avoid potential use-after-free
  and driver unbind crash

* tag 'hisi-fixes-for-5.3' of git://github.com/hisilicon/linux-hisi:
  bus: hisi_lpc: Add .remove method to avoid driver unbind crash
  bus: hisi_lpc: Unregister logical PIO range to avoid potential use-after-free
  lib: logic_pio: Add logic_pio_unregister_range()
  lib: logic_pio: Avoid possible overlap for unregistering regions
  lib: logic_pio: Fix RCU usage

Link: https://lore.kernel.org/r/5D562335.7000902@hisilicon.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-29 17:23:52 +02:00
Tony Lindgren 7edd00f71f bus: ti-sysc: Detect d2d when debug is enabled
We want to see what modules probe when debug is enabled.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-26 08:33:25 -07:00
Tony Lindgren d7f563db77 bus: ti-sysc: Add module enable quirk for SGX on omap36xx
Add module enable quirk for SGX needed on omap36xx.

Cc: Adam Ford <aford173@gmail.com>
Cc: Filip Matijević <filip.matijevic.pz@gmail.com>
Cc: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: moaz korena <moaz@korena.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Cc: Philipp Rossak <embed3d@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-26 08:33:24 -07:00
Nishka Dasgupta c6e78d7019 bus: ti-sysc: Change return types of functions
Change return type of functions sysc_check_one_child() and
sysc_check_children() from int to void as neither ever returns an error.
Modify call sites of both functions accordingly.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-26 08:33:23 -07:00
Sascha Hauer 4a92f07816 bus: imx-weim: use module_platform_driver()
Switch from module_platform_driver_probe() to module_platform_driver().
The former is not suitable for booting with device tree as the driver
will be registered before the device and thus won't be probed again
when the device is present.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-19 14:07:23 +02:00
Ioana Ciornei eadf0b17b4 bus: fsl-mc: remove explicit device_link_del
Starting with commit 72175d4ea4 ("driver core: Make driver core own
stateful device links") stateful device links are owned by the driver
core and should not be explicitly removed on device unbind. Delete all
device_link_del appearances from the fsl-mc bus.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-By: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-08-16 14:17:35 -05:00
Marek Behún 5bc7f990cd bus: Add support for Moxtet bus
On the Turris Mox router different modules can be connected to the main
CPU board: currently a module with a SFP cage, a module with MiniPCIe
connector, a PCIe pass-through MiniPCIe connector module, a 4-port
switch module, an 8-port switch module, and a 4-port USB3 module.

For example:
  [CPU]-[PCIe-pass-through]-[PCIe]-[8-port switch]-[8-port switch]-[SFP]

Each of this modules has an input and output shift register, and these
are connected via SPI to the CPU board.

Via SPI we are able to discover which modules are connected, in which
order, and we can also read some information about the modules (eg.
their interrupt status), and configure them.
From each module 8 bits can be read (of which low 4 bits identify the
module) and 8 bits can be written.

For example from the module with a SFP cage we can read the LOS,
TX-FAULT and MOD-DEF0 signals, while we can write TX-DISABLE and
RATE-SELECT signals.

This driver creates a new bus type, called "moxtet". For each Mox module
it finds via SPI, it creates a new device on the moxtet bus so that
drivers can be written for them.

It also implements a virtual interrupt controller for the modules which
send their interrupt status over the SPI shift register. These modules
do this in addition to sending their interrupt status via the shared
interrupt line. When the shared interrupt is triggered, we read from the
shift register and handle IRQs for all devices which are in interrupt.

The topology of how Mox modules are connected can then be read by
listing /sys/bus/moxtet/devices.

Link: https://lore.kernel.org/r/20190812161118.21476-2-marek.behun@nic.cz
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-14 15:30:35 +02:00
YueHaibing c8a738f4cf bus: ti-sysc: remove set but not used variable 'quirks'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/bus/ti-sysc.c: In function sysc_reset:
drivers/bus/ti-sysc.c:1452:50: warning: variable quirks set but not used [-Wunused-but-set-variable]

It is never used since commit e0db94fe87 ("bus: ti-sysc: Make
OCP reset work for sysstatus and sysconfig reset bits")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:40:11 -07:00
Tero Kristo bb88b86c1f bus: ti-sysc: allow reset sharing across devices
Some devices need to share their reset signals, like DSP MMUs, thus drop
the exclusive notation from reset request. Also, balance the init time
reset count, otherwise the resets will never be applied post boot.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:32:15 -07:00
Tero Kristo 4345f0dc01 bus: ti-sysc: rework the reset handling
If reset controllers are assigned to the ti-sysc target-module, only
ti-sysc is going to be able to control these. Thus, remove all the
disable_on_idle flag usage, and assert/de-assert the reset always
in the idle path. Otherwise the reset signal will always just be
de-asserted.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:32:09 -07:00
Tero Kristo b603631443 bus: ti-sysc: re-order the clkdm control around reset handling
Parenting clockdomain for the IP should be enabled during the reset
handling logic, otherwise the reset may not finish properly. Re-order
the clockdomain control logic to avoid this.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:32:03 -07:00
Suman Anna b58056da2e bus: ti-sysc: Add missing kerneldoc comments
A few fields in various structures is missing the corresponding
kerneldoc comments. Add them. Also, fixed the comment for sidlemodes.

Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:13:32 -07:00
Suman Anna 54d662227c bus: ti-sysc: Switch to SPDX license identifier
Use the appropriate SPDX license identifier in the TI sysc
interconnect target driver source files and drop the previous
boilerplate license text. Also, add the the SPDX license
identifier in the associated ti-sysc header files.

Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 04:13:32 -07:00
Suman Anna a304f483b6 bus: ti-sysc: Simplify cleanup upon failures in sysc_probe()
The clocks are not yet parsed and prepared until after a successful
sysc_get_clocks(), so there is no need to unprepare the clocks upon
any failure of any of the prior functions in sysc_probe(). The current
code path would have been a no-op because of the clock validity checks
within sysc_unprepare(), but let's just simplify the cleanup path by
returning the error directly.

While at this, also fix the cleanup path for a sysc_init_resets()
failure which is executed after the clocks are prepared.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13 03:38:37 -07:00
John Garry 10e62b4797 bus: hisi_lpc: Add .remove method to avoid driver unbind crash
The original driver author seemed to be under the impression that a driver
cannot be removed if it does not have a .remove method. Or maybe if it is
a built-in platform driver.

This is not true. This crash can be created:

root@ubuntu:/sys/bus/platform/drivers/hisi-lpc# echo HISI0191\:00 > unbind
root@ubuntu:/sys/bus/platform/drivers/hisi-lpc# ipmitool raw 6 1
 Unable to handle kernel paging request at virtual address ffff000010035010
 Mem abort info:
   ESR = 0x96000047
   Exception class = DABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
 Data abort info:
   ISV = 0, ISS = 0x00000047
   CM = 0, WnR = 1
 swapper pgtable: 4k pages, 48-bit VAs, pgdp=000000000118b000
 [ffff000010035010] pgd=0000041ffbfff003, pud=0000041ffbffe003, pmd=0000041ffbffd003, pte=0000000000000000
 Internal error: Oops: 96000047 [#1] PREEMPT SMP
 Modules linked in:
 CPU: 17 PID: 1473 Comm: ipmitool Not tainted 5.2.0-rc5-00003-gf68c53b414a3-dirty #198
 Hardware name: Huawei Taishan 2280 /D05, BIOS Hisilicon D05 IT21 Nemo 2.0 RC0 04/18/2018
 pstate: 20000085 (nzCv daIf -PAN -UAO)
 pc : hisi_lpc_target_in+0x7c/0x120
 lr : hisi_lpc_target_in+0x70/0x120
 sp : ffff00001efe3930
 x29: ffff00001efe3930 x28: ffff841f9f599200
 x27: 0000000000000002 x26: 0000000000000000
 x25: 0000000000000080 x24: 00000000000000e4
 x23: 0000000000000000 x22: 0000000000000064
 x21: ffff801fb667d280 x20: 0000000000000001
 x19: ffff00001efe39ac x18: 0000000000000000
 x17: 0000000000000000 x16: 0000000000000000
 x15: 0000000000000000 x14: 0000000000000000
 x13: 0000000000000000 x12: 0000000000000000
 x11: 0000000000000000 x10: 0000000000000000
 x9 : 0000000000000000 x8 : ffff841febe60340
 x7 : ffff801fb55c52e8 x6 : 0000000000000000
 x5 : 0000000000ffc0e3 x4 : 0000000000000001
 x3 : ffff801fb667d280 x2 : 0000000000000001
 x1 : ffff000010035010 x0 : ffff000010035000
 Call trace:
  hisi_lpc_target_in+0x7c/0x120
  hisi_lpc_comm_in+0x88/0x98
  logic_inb+0x5c/0xb8
  port_inb+0x18/0x20
  bt_event+0x38/0x808
  smi_event_handler+0x4c/0x5a0
  check_start_timer_thread.part.4+0x40/0x58
  sender+0x78/0x88
  smi_send.isra.6+0x94/0x108
  i_ipmi_request+0x2c4/0x8f8
  ipmi_request_settime+0x124/0x160
  handle_send_req+0x19c/0x208
  ipmi_ioctl+0x2c0/0x990
  do_vfs_ioctl+0xb8/0x8f8
  ksys_ioctl+0x80/0xb8
  __arm64_sys_ioctl+0x1c/0x28
  el0_svc_common.constprop.0+0x64/0x160
  el0_svc_handler+0x28/0x78
  el0_svc+0x8/0xc
 Code: 941d1511 aa0003f9 f94006a0 91004001 (b9000034)
 ---[ end trace aa842b86af7069e4 ]---

The problem here is that the host goes away but the associated logical PIO
region remains registered, as do the children devices.

Fix by adding a .remove method to tidy-up by removing the child devices
and unregistering the logical PIO region.

Cc: stable@vger.kernel.org
Fixes: adf38bb0b5 ("HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings")
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-08-13 14:54:34 +08:00
John Garry 1b15a5632a bus: hisi_lpc: Unregister logical PIO range to avoid potential use-after-free
If, after registering a logical PIO range, the driver probe later fails,
the logical PIO range memory will be released automatically.

This causes an issue, in that the logical PIO range is not unregistered
and the released range memory may be later referenced.

Fix by unregistering the logical PIO range.

And since we now unregister the logical PIO range for probe failure, avoid
the special ordering of setting logical PIO range ops, which was the
previous (poor) attempt at a safeguard against this.

Cc: stable@vger.kernel.org
Fixes: adf38bb0b5 ("HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings")
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-08-13 14:54:28 +08:00
Stephen Boyd 9d4db2f5f0 bus: sunxi-rsb: Remove dev_err() usage after platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2019-08-06 14:15:49 +08:00
Sven Van Asbroeck 77266e722f bus: imx-weim: optionally enable burst clock mode
To enable burst clock mode, add the fsl,burst-clk-enable
property to the weim bus's devicetree node.

Example:
weim: weim@21b8000 {
	compatible = "fsl,imx6q-weim";
	reg = <0x021b8000 0x4000>;
	clocks = <&clks 196>;
	#address-cells = <2>;
	#size-cells = <1>;
	ranges = <0 0 0x08000000 0x08000000>;
	fsl,weim-cs-gpr = <&gpr>;
	fsl,burst-clk-enable;

	client-device@0,0 {
		compatible = "something";
		reg = <0 0 0x02000000>;
		#address-cells = <1>;
		#size-cells = <1>;
		bank-width = <2>;
		fsl,weim-cs-timing = <0x00620081 0x00000001 0x1c022000
				0x0000c000 0x1404a38e 0x00000000>;
	};
};

Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-03 10:18:56 +02:00
Tony Lindgren 89bbc6f1eb ARM: dts: Fix incorrect dcan register mapping for am3, am4 and dra7
We are currently using a wrong register for dcan revision. Although
this is currently only used for detecting the dcan module, let's
fix it to avoid confusion.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-07-24 00:51:27 -07:00
Tony Lindgren e212abd452 bus: ti-sysc: Fix using configured sysc mask value
We have cases where there are no softreset bits like with am335x lcdc.
In that case ti,sysc-mask = <0> needs to be handled properly.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-07-24 00:50:01 -07:00
Tony Lindgren 6ee8241d17 bus: ti-sysc: Fix handling of forced idle
For some devices we can get the following warning on boot:

ti-sysc 48485200.target-module: sysc_disable_module: invalid midlemode

Fix this by treating SYSC_IDLE_FORCE like we do for the other bits
for idlemodes mask.

Fixes: d59b60564c ("bus: ti-sysc: Add generic enable/disable functions")
Cc: Roger Quadros <rogerq@ti.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-07-24 00:50:01 -07:00
Linus Torvalds 8362fd64f0 ARM: SoC-related driver updates
Various driver updates for platforms and a couple of the small driver
 subsystems we merge through our tree:
 
  - A driver for SCU (system control) on NXP i.MX8QXP
  - Qualcomm Always-on Subsystem messaging driver (AOSS QMP)
  - Qualcomm PM support for MSM8998
  - Support for a newer version of DRAM PHY driver for Broadcom (DPFE)
  - Reset controller support for Bitmain BM1880
  - TI SCI (System Control Interface) support for CPU control on AM654
    processors
  - More TI sysc refactoring and rework
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms and a couple of the small driver
  subsystems we merge through our tree:

   - A driver for SCU (system control) on NXP i.MX8QXP

   - Qualcomm Always-on Subsystem messaging driver (AOSS QMP)

   - Qualcomm PM support for MSM8998

   - Support for a newer version of DRAM PHY driver for Broadcom (DPFE)

   - Reset controller support for Bitmain BM1880

   - TI SCI (System Control Interface) support for CPU control on AM654
     processors

   - More TI sysc refactoring and rework"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (84 commits)
  reset: remove redundant null check on pointer dev
  soc: rockchip: work around clang warning
  dt-bindings: reset: imx7: Fix the spelling of 'indices'
  soc: imx: Add i.MX8MN SoC driver support
  soc: aspeed: lpc-ctrl: Fix probe error handling
  soc: qcom: geni: Add support for ACPI
  firmware: ti_sci: Fix gcc unused-but-set-variable warning
  firmware: ti_sci: Use the correct style for SPDX License Identifier
  soc: imx8: Use existing of_root directly
  soc: imx8: Fix potential kernel dump in error path
  firmware/psci: psci_checker: Park kthreads before stopping them
  memory: move jedec_ddr.h from include/memory to drivers/memory/
  memory: move jedec_ddr_data.c from lib/ to drivers/memory/
  MAINTAINERS: Remove myself as qcom maintainer
  soc: aspeed: lpc-ctrl: make parameter optional
  soc: qcom: apr: Don't use reg for domain id
  soc: qcom: fix QCOM_AOSS_QMP dependency and build errors
  memory: tegra: Fix -Wunused-const-variable
  firmware: tegra: Early resume BPMP
  soc/tegra: Select pinctrl for Tegra194
  ...
2019-07-19 17:13:56 -07:00
Linus Torvalds c884d8ac7f SPDX update for 5.2-rc6
Another round of SPDX updates for 5.2-rc6
 
 Here is what I am guessing is going to be the last "big" SPDX update for
 5.2.  It contains all of the remaining GPLv2 and GPLv2+ updates that
 were "easy" to determine by pattern matching.  The ones after this are
 going to be a bit more difficult and the people on the spdx list will be
 discussing them on a case-by-case basis now.
 
 Another 5000+ files are fixed up, so our overall totals are:
 	Files checked:            64545
 	Files with SPDX:          45529
 
 Compared to the 5.1 kernel which was:
 	Files checked:            63848
 	Files with SPDX:          22576
 This is a huge improvement.
 
 Also, we deleted another 20000 lines of boilerplate license crud, always
 nice to see in a diffstat.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull still more SPDX updates from Greg KH:
 "Another round of SPDX updates for 5.2-rc6

  Here is what I am guessing is going to be the last "big" SPDX update
  for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates
  that were "easy" to determine by pattern matching. The ones after this
  are going to be a bit more difficult and the people on the spdx list
  will be discussing them on a case-by-case basis now.

  Another 5000+ files are fixed up, so our overall totals are:
	Files checked:            64545
	Files with SPDX:          45529

  Compared to the 5.1 kernel which was:
	Files checked:            63848
	Files with SPDX:          22576

  This is a huge improvement.

  Also, we deleted another 20000 lines of boilerplate license crud,
  always nice to see in a diffstat"

* tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits)
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485
  ...
2019-06-21 09:58:42 -07:00
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Olof Johansson c3bd15a078 ti-sysc interconnect target module driver changes for v5.3
This series of changes improves probing devices with ti-sysc to the
 point where we can now probe most devices without the custom dts
 property "ti,hwmods" and no legacy platform data :)
 
 We add support for platform data callbacks for idling and unidling the
 clockdomain the module belongs to. The rest of the series mostly adds
 handling for the various quirks needed by old legacy modules such as
 i2c and watchdog. Some quirk handling is still missing for few modules,
 but those will be added as they get tested.
 
 The related platform data and dts changes will be sent separately.
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Merge tag 'omap-for-v5.3/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/drivers

ti-sysc interconnect target module driver changes for v5.3

This series of changes improves probing devices with ti-sysc to the
point where we can now probe most devices without the custom dts
property "ti,hwmods" and no legacy platform data :)

We add support for platform data callbacks for idling and unidling the
clockdomain the module belongs to. The rest of the series mostly adds
handling for the various quirks needed by old legacy modules such as
i2c and watchdog. Some quirk handling is still missing for few modules,
but those will be added as they get tested.

The related platform data and dts changes will be sent separately.

* tag 'omap-for-v5.3/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Add support for module specific reset quirks
  bus: ti-sysc: Detect uarts also on omap34xx
  bus: ti-sysc: Do rstctrl reset handling in two phases
  bus: ti-sysc: Add support for disabling module without legacy mode
  bus: ti-sysc: Set ENAWAKEUP if available
  bus: ti-sysc: Handle swsup idle mode quirks
  bus: ti-sysc: Handle clockactivity for enable and disable
  bus: ti-sysc: Enable interconnect target module autoidle bit on enable
  bus: ti-sysc: Allow QUIRK_LEGACY_IDLE even if legacy_mode is not set
  bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits
  bus: ti-sysc: Support 16-bit writes too
  bus: ti-sysc: Add support for missing clockdomain handling
  ARM: dts: dra71x: Disable usb4_tm target module
  ARM: dts: dra71x: Disable rtc target module
  ARM: dts: dra76x: Disable usb4_tm target module
  ARM: dts: dra76x: Disable rtc target module
  ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values
  ARM: dts: am57xx-idk: Remove support for voltage switching for SD card
  bus: ti-sysc: Handle devices with no control registers
  ARM: dts: Configure osc clock for d_can on am335x

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-17 04:53:32 -07:00
Olof Johansson 426356392c This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes
for 5.3, please pull the following:
 
 - Markus provides a set of updates to the DPFE driver to support a new
   revision of the API to the firmware (version 3) and provides minor fixes
   about how the MR4-8 words are read for LPDDR4 devices
 
 - Florian removes a print of a virtual address in brcmstb_gisb.c
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Merge tag 'arm-soc/for-5.3/drivers' of https://github.com/Broadcom/stblinux into arm/drivers

This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes
for 5.3, please pull the following:

- Markus provides a set of updates to the DPFE driver to support a new
  revision of the API to the firmware (version 3) and provides minor fixes
  about how the MR4-8 words are read for LPDDR4 devices

- Florian removes a print of a virtual address in brcmstb_gisb.c

* tag 'arm-soc/for-5.3/drivers' of https://github.com/Broadcom/stblinux:
  memory: brcmstb: dpfe: introduce DPFE API v3
  memory: brcmstb: dpfe: prepare for API-dependent sysfs attributes
  memory: brcmstb: dpfe: prepare support for multiple API versions
  memory: brcmstb: dpfe: wait for DCPU to be ready
  memory: brcmstb: dpfe: report firmware loading error
  memory: brcmstb: dpfe: remove unused code and fix formatting
  bus: brcmstb_gisb: Remove print of base address
  memory: brcmstb: dpfe: use byte 3 of registers MR4-MR8
  memory: brcmstb: dpfe: optimize generic_show()
  memory: brcmstb: dpfe: use msleep() over udelay()

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-17 04:52:52 -07:00
Olof Johansson 1126037393 NXP/FSL SoC driver updates for v5.3
DPAA2 Console driver
 - Add driver to export two char devices to dump logs for MC and
   AIOP
 
 DPAA2 DPIO driver
 - Add support for memory backed QBMan portals
 - Increase the timeout period to prevent false error
 - Add APIs to retrieve QBMan portal probing status
 
 DPAA Qman driver
 - Only make liodn fixup on powerpc SoCs with PAMU iommu
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Merge tag 'soc-fsl-next-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.3

DPAA2 Console driver
- Add driver to export two char devices to dump logs for MC and
  AIOP

DPAA2 DPIO driver
- Add support for memory backed QBMan portals
- Increase the timeout period to prevent false error
- Add APIs to retrieve QBMan portal probing status

DPAA Qman driver
- Only make liodn fixup on powerpc SoCs with PAMU iommu

* tag 'soc-fsl-next-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: qbman_portals: add APIs to retrieve the probing status
  soc: fsl: qman: fixup liodns only on ppc targets
  soc: fsl: dpio: Add support for memory backed QBMan portals
  bus: mc-bus: Add support for mapping shareable portals
  soc: fsl: dpio: Increase timeout for QBMan Management Commands
  soc: fsl: add DPAA2 console support
  Documentation: DT: Add entry for DPAA2 console
  soc: fsl: guts: Add definition for LX2160A

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-17 04:38:06 -07:00
Olof Johansson 6515a2ceac Fixes for omap variants for dra7 mmc voltage and boot issues
This series contains dra7 mmc voltage fixes, and fixes to the recent
 changes to probe devices with device tree data insteas of legacy
 platform data:
 
 - Two fixes for dra7 mmc that needs 1.8V mode disabled as in case of a
   reset, the bootrom will try to access the mmc card at 3.3V potentially
   damaging the card
 
 - Two regression fixes for am335x d_can. We must allow devices with no
   control registers for ti-sysc interconnect target module driver for
   at least d_can, and we remove the incorrect control registers for
   d_can. And we must configure the osc clock for d_can as otherwise
   register access may fail depending on the bootloader version
 
 - Four regression fixes for dra7 variant dts files to tag rtc and usb4
   as disabled for dra71x and dra76x. These SoC variants do not have
   these devices, and got accidentally enabled when the L4 interconnect
   got defined in the dra7-l4.dtsi for the dra7 SoC family
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Merge tag 'omap-for-v5.2/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omap variants for dra7 mmc voltage and boot issues

This series contains dra7 mmc voltage fixes, and fixes to the recent
changes to probe devices with device tree data insteas of legacy
platform data:

- Two fixes for dra7 mmc that needs 1.8V mode disabled as in case of a
  reset, the bootrom will try to access the mmc card at 3.3V potentially
  damaging the card

- Two regression fixes for am335x d_can. We must allow devices with no
  control registers for ti-sysc interconnect target module driver for
  at least d_can, and we remove the incorrect control registers for
  d_can. And we must configure the osc clock for d_can as otherwise
  register access may fail depending on the bootloader version

- Four regression fixes for dra7 variant dts files to tag rtc and usb4
  as disabled for dra71x and dra76x. These SoC variants do not have
  these devices, and got accidentally enabled when the L4 interconnect
  got defined in the dra7-l4.dtsi for the dra7 SoC family

* tag 'omap-for-v5.2/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: dra71x: Disable usb4_tm target module
  ARM: dts: dra71x: Disable rtc target module
  ARM: dts: dra76x: Disable usb4_tm target module
  ARM: dts: dra76x: Disable rtc target module
  ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values
  ARM: dts: am57xx-idk: Remove support for voltage switching for SD card
  bus: ti-sysc: Handle devices with no control registers
  ARM: dts: Configure osc clock for d_can on am335x

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-16 13:27:36 -07:00
Tony Lindgren 4e23be473e bus: ti-sysc: Add support for module specific reset quirks
Some older interconnect target modules need module internal clock
toggling quirks to reset properly. We've been doing this in the
platform code earlier, but need to be able to it directly in the
ti-sysc driver when we no longer rely on on the platform code.

Let's add reset handling for 1-wire, i2c and watchdog. Later on
we can add more modules like msdi and dss as they get tested.
For dra7 pcie, we should be able to just use the rstctrl reset
driver when available.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-06-10 04:52:22 -07:00
Thomas Gleixner 1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:41 -07:00
Thomas Gleixner c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
Based on 3 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] this program is distributed in the hope that
  it will be useful but without any warranty without even the implied
  warranty of merchantability or fitness for a particular purpose see
  the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] this program is distributed in the hope
  that it will be useful but without any warranty without even the
  implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00
Tony Lindgren b6a53c4c87 bus: ti-sysc: Detect uarts also on omap34xx
Looks like we currently only detect UART on omap36xx, let's also
add support for omap34xx. And let's also fix the SWSUP mode, it should
be SWSUP_SIDLE for omap3, not SWSUP_SIDLE_ACT like for omap4 and later.

Note that we are still booting omap3 for most part without ti-sysc,
so no need to treat this change as a fix.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:17 -07:00
Tony Lindgren ea5a2e4d54 bus: ti-sysc: Do rstctrl reset handling in two phases
We need to deassert rstctrl resets before enabling clocks to avoid clock
"failed to enable" errors. For asserting rstctrl reset, the clocks need
to be enabled.

As the reset controller status is not available for arrays, let's use
devm_reset_control_get_optional() so we can get the status after reset.

Note that depends on a proper PRM rstctrl driver, so far I've only
tested this with earlier reset-simple patches.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:16 -07:00
Tony Lindgren 8383e25994 bus: ti-sysc: Add support for disabling module without legacy mode
We must not assert reset for modules with no child device drivers
until in runtime_suspend. Otherwise register access will fail without
legacy mode helping us.

Let's add a flag for disable_on_idle and move the reset driver
handling to runtime suspend and resume. We can then also use the
disable_on_idle flag to reconfigure sysconfig register for PM
modes requesting it.

Let's also make the other flags use bitfield while at it instead of
bool.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:16 -07:00
Tony Lindgren 6e09f497eb bus: ti-sysc: Set ENAWAKEUP if available
Some modules have ENAWAKEUP bit that we need to configure when not
relying on platform data callbacks.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:16 -07:00
Tony Lindgren fb685f1c19 bus: ti-sysc: Handle swsup idle mode quirks
Some modules have idlemodes wired, but not completely functional. We have
quirks for SWSUP_SIDLE and SWSUP_SIDLE_ACT to manage interconnect target
modules without hardware support, but we've been only using them so far
in legacy mode. Let's add support for SWSUP quirks in non-legacy mode too.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:16 -07:00
Tony Lindgren ae9ae12e9d bus: ti-sysc: Handle clockactivity for enable and disable
Modules with clockactivity need it configured during enable.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:15 -07:00
Tony Lindgren eec26555ae bus: ti-sysc: Enable interconnect target module autoidle bit on enable
For interconnect target modules with autoidle bit wired, we need to manage
it for enable and disable.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:15 -07:00
Tony Lindgren bd808f9a44 bus: ti-sysc: Allow QUIRK_LEGACY_IDLE even if legacy_mode is not set
We need to specify QUIRK_LEGACY_IDLE for device drivers that still have
pm_runtime_irq_safe() set like 8250.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:15 -07:00
Tony Lindgren e0db94fe87 bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits
We've had minimal OCP softreset support in ti-sysc interconnect target
module driver only used for MCAN driver so far. But it turns out that
MCAN has the sysstatus register resetdone bit inverted compared to most
other modules.

Let's make OCP softreset work for other typical cases with reset status
in sysstatus or sysconfig register so we can use the new functions for
sysc_enable_module() and sysc_disable_module() without "ti,hwmods"
property in the following patches.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:15 -07:00
Tony Lindgren 5aa9129536 bus: ti-sysc: Support 16-bit writes too
We need to also support 16-bit writes for i2c in addition to the reads
when we start configuring the sysconfig register for reset and idle modes.

Note that only i2c revision register has LO and HI registers, so let's
add a check also for 16-bit register read. This change is currently cosmetic
and does not affect anything until we enable the module specific quirk
handling for i2c reset and enable later on.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:14 -07:00
Tony Lindgren 2b2f7def05 bus: ti-sysc: Add support for missing clockdomain handling
We need to let ti-sysc driver manage clockdomain autoidle for the
duration of of reset, enable and idle. And we need to do it before we
enable the clock and after we disable it. Currently we are still
relying on platform callbacks indirectly managing clockdomain autoidle.
But I noticed that for device tree only probed drivers it now happens
only after we enabling the clocks and before we disable the clocks,
while it should be the other way around. So far I have not noticed
any issues with this though.

Let's add new ti_sysc_clkdm_deny_idle() and ti_sysc_clkdm_allow_idle()
functions for ti-sysc driver to use to manage clockdomains directly via
platform data callbacks. Note that we can implement the clockdomain
functions in pdata-quirks.c as for probing devices without "ti,hwmods"
custom property we don't need to use the other platform data callbacks.

Let's do this in one patch as there's is still an unlikely chance we
may need to apply this as a fix for v5.2 for dropping legacy platform
data for some devices. We also do have the option of adding back the
platform data if needed in case of trouble.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28 05:19:14 -07:00
Roy Pledge dde2137d62 bus: mc-bus: Add support for mapping shareable portals
Starting with v5 of NXP QBMan devices the hardware supports using
regular cacheable/shareable memory as the backing store for the
portals.

This patch adds support for the new portal mode by switching to
use the DPRC get object region v2 command which returns both
a base address and offset for the portal memory. The new portal
region is identified as shareable through the addition of a new
flag.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-05-20 14:28:16 -05:00
Florian Fainelli 3087974a3d bus: brcmstb_gisb: Remove print of base address
Since commit ad67b74d24 ("printk: hash addresses printed with %p")
pointers are being hashed when printed. Displaying the virtual memory at
bootup time is not helpful, especially given we use a dev_info() which
already displays the platform device's address.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2019-05-20 09:32:35 -07:00
Tony Lindgren 4ee23cd76c Merge branch 'omap-for-v5.2/ti-sysc' into fixes 2019-05-20 08:33:03 -07:00
Linus Torvalds dc413a90ed ARM: SoC-related driver updates
Various driver updates for platforms and a couple of the small driver
 subsystems we merge through our tree:
 
 Among the larger pieces:
 
  - Power management improvements for TI am335x and am437x (RTC suspend/wake)
  - Misc new additions for Amlogic (socinfo updates)
  - ZynqMP FPGA manager
  - Nvidia improvements for reset/powergate handling
  - PMIC wrapper for Mediatek MT8516
  - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms and a couple of the small driver
  subsystems we merge through our tree:

  Among the larger pieces:

   - Power management improvements for TI am335x and am437x (RTC
     suspend/wake)

   - Misc new additions for Amlogic (socinfo updates)

   - ZynqMP FPGA manager

   - Nvidia improvements for reset/powergate handling

   - PMIC wrapper for Mediatek MT8516

   - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits)
  soc: aspeed: fix Kconfig
  soc: add aspeed folder and misc drivers
  spi: zynqmp: Fix build break
  soc: imx: Add generic i.MX8 SoC driver
  MAINTAINERS: Update email for Qualcomm SoC maintainer
  memory: tegra: Fix a typos for "fdcdwr2" mc client
  Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
  memory: tegra: Replace readl-writel with mc_readl-mc_writel
  memory: tegra: Fix integer overflow on tick value calculation
  memory: tegra: Fix missed registers values latching
  ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30
  optee: allow to work without static shared memory
  soc/tegra: pmc: Move powergate initialisation to probe
  soc/tegra: pmc: Remove reset sysfs entries on error
  soc/tegra: pmc: Fix reset sources and levels
  soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A
  soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask
  fpga manager: Adding FPGA Manager support for Xilinx zynqmp
  dt-bindings: fpga: Add bindings for ZynqMP fpga driver
  firmware: xilinx: Add fpga API's
  ...
2019-05-16 09:19:14 -07:00
Tony Lindgren e4f50c8d10 bus: ti-sysc: Handle devices with no control registers
Some interconnect target modules have no module control registers at
all, such as d_can on am335x and am437x.

The d_can register offset at 0 is CTL register with 0x401 as the default
value. I guess I mistook the 0x401 value for a revision register as the
value happens to look similar to what the revision registers typically
have for other modules.

To handle modules with no control registers, we need to improve the
ti-sysc driver a bit to bail out with errors on no control registers,
and then we can remove the bogus revision registers for d_can.

Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-02 06:29:46 -07:00
Roger Quadros d59b60564c bus: ti-sysc: Add generic enable/disable functions
For non legacy cases, add generic sysc_enable_module()
and sysc_disable_module() functions.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-09 08:58:48 -07:00
Tony Lindgren 13aad51935 bus: ti-sysc: Detect DMIC for debugging
Detect DMIC to see what we have connected if config DEBUG is enabled.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-05 15:10:36 -07:00
Tony Lindgren b4a9a7a389 bus: ti-sysc: Handle swsup idle mode quirks
In preparation of dropping interconnect target module platform data in
favor of devicetree based data, we must pass swsup idle quirks to the
platform data functions.

For now, let's only tag the UART modules with the SWSUP_SIDLE_ACT quirk.
The other modules will get tagged with swsup quirks as we drop the
platform data and test the changes.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-05 15:10:36 -07:00
Tony Lindgren a54275f4ab bus: ti-sysc: Add quirk handling for external optional functional clock
We cannot access mcpdm registers at all unless there is an optional pdmclk
configured. As this is currently only needed for mcpdm, let's check for
mcpdm in sysc_get_clocks(). If it turns out to be needed for other modules
too, we can add more flags to the quirks table for this.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-03 09:32:35 -07:00
Tony Lindgren 42b9c5c99b bus: ti-sysc: Add support for early quirks based on register address
At least mcpdm needs an optional external clock enabled to function and
this clock typically comes from the PMIC. We can detect mcpdm based on
the interconnect target module address and set a quirk flag early.

To do this, let's initialize the clocks a bit later and add a new
function for sysc_init_early_quirks(). Note that we cannot yet enable
the early quirks for mcpdm until the optional external clocks are
handled in the in the following patch.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-03 09:32:35 -07:00
Tony Lindgren b11c1ea1f6 bus: ti-sysc: Move rstctrl reset to happen later
We can do the rsstctrl a bit later, but need to deassert rstctrl reset
before the clocks are enabled if asserted. Let's only init restctrl
in sysc_init_resets() and do the reset later on just before we enable
the device clocks.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-03 09:32:35 -07:00
Tony Lindgren 93de83a21e bus: ti-sysc: Manage clocks for the interconnect target module in all cases
We are currently not managing interconnect target module clocks in the
for legacy platform data based case. This causes a problem for using the
platform data based functions when dropping the platform data for the
interconnect target module configuration.

To avoid a situation where we need to populate the main and optional
clocks also for the platform data based functions, let's just manage the
clocks directly in ti-sysc driver. This means that until the interconnect
target module confugration platform data is dropped our use count for
clk_enable() will be 2 instead of 1.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-03 09:32:35 -07:00
Tony Lindgren a3e92e7b32 bus: ti-sysc: Allocate mdata as needed and do platform data based init later
The platform data based init functions typically reset the interconnect
target module configure the registers. As we may need the interconnect
target module specific quirks configured based on the revision register,
we want to move the platform data based init to happen later.

Let's allocate mdata as needed so it's available for sysc_legacy_init()
that we call with module clocks enabled from sysc_init_module().

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-03 09:32:34 -07:00
Tony Lindgren 1a5cd7c23c bus: ti-sysc: Enable all clocks directly during init to read revision
The first thing we want to do is just read the module revision register to
be able to configure the module specific quirks and configure the module
registers.

As the interconnect target module may not yet be properly configured and
may need a reset first, we don't want to use pm_runtime_get() at this
point.

To read the revision register, let's just enable the all the clocks for
the interconnect target module during init even if the optional clocks
are not needed. That way we can read the revision register to configure
the quirks needed for PM runtime.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-03 09:32:34 -07:00
Tony Lindgren d878970f6c bus: ti-sysc: Add separate functions for handling clocks
At least McPDM module depends on an external optional clock to be
usable. To make handling of the McPDM clock easier in the following
patches, let's add separate functions for handling the main clocks
and the optional clocks.

Let's also add error handling to shut down already enabled clocks
while at it.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-01 07:59:28 -07:00
Tony Lindgren ff43728c4a bus: ti-sysc: Move legacy platform data idling into separate functions
Let's move the legacy idle and enable into separate functions to simplify
PM runtime functions a bit.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-01 07:59:28 -07:00
Tony Lindgren b7182b42a9 bus: ti-sysc: Make functions static
We can make sysc_write() and sysc_child_pm_domain static as noted by
sparse.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-01 07:59:28 -07:00
Tony Lindgren 386cb76681 bus: ti-sysc: Handle missed no-idle property in addition to no-idle-on-init
We have ti,no-idle in use in addition to ti,no-idle-on-init but we're
missing handling for it in the ti-sysc interconnect target module driver.

Let's also group the idle defines together and update the binding
documentation for it.

Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-01 07:38:38 -07:00
Tony Lindgren aaa29bb01c bus: ti-sysc: Fix sysc_unprepare() when no clocks have been allocated
If we return early before ddata->clocks have been allocated we will get a
NULL pointer dereference in sysc_unprepare(). Let's fix this by returning
early when no clocks are allocated.

Fixes: 0eecc636e5 ("bus: ti-sysc: Add minimal TI sysc interconnect target driver")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-01 07:38:37 -07:00
Sameer Pujar 1427736e64 bus: tegra-aconnect: add system sleep callbacks
pm_runtime_force_suspend() and pm_runtime_force_resume() are used as system
sleep noirq suspend and resume callbacks. If the driver is active till late
suspend, where runtime PM cannot run, force suspend is essential for the
device. This makes sure that the device is put into low power state during
system wide PM transitions to sleep states.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-03-28 17:26:14 +01:00
Sameer Pujar 0d7dab9261 bus: tegra-aconnect: use devm_clk_*() helpers
aconnect bus driver is using pm_clk_*() interface for managing clocks.
With this, clocks seem to be always ON. This happens on Tegra devices
which use BPMP co-processor to manage clock resources, where clocks
are enabled during prepare phase. This is necessary because calls to
BPMP are always blocking. When pm_clk_*() interface is used on such
Tegra devices, clock prepare count is not balanced till driver remove()
gets executed and hence clocks are seen ON always. Thus this patch
replaces pm_clk_*() with devm_clk_*() framework.

Suggested-by: Mohan Kumar D <mkumard@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-03-28 17:24:57 +01:00
Linus Torvalds 384d11fa0e ARM: SoC driver updates for 5.1
As usual, the drivers/tee and drivers/reset subsystems get merged
 here, with the expected set of smaller updates and some new hardware
 support. The tee subsystem now supports device drivers to be attached
 to a tee, the first example here is a random number driver with its
 implementation in the secure world.
 
 Three new power domain drivers get added for specific chip families:
  - Broadcom BCM283x chips (used in Raspberry Pi)
  - Qualcomm Snapdragon phone chips
  - Xilinx ZynqMP FPGA SoCs
 
 One new driver is added to talk to the BPMP firmware on NVIDIA
 Tegra210
 
 Existing drivers are extended for new SoC variants from NXP,
 NVIDIA, Amlogic and Qualcomm.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "As usual, the drivers/tee and drivers/reset subsystems get merged
  here, with the expected set of smaller updates and some new hardware
  support. The tee subsystem now supports device drivers to be attached
  to a tee, the first example here is a random number driver with its
  implementation in the secure world.

  Three new power domain drivers get added for specific chip families:
   - Broadcom BCM283x chips (used in Raspberry Pi)
   - Qualcomm Snapdragon phone chips
   - Xilinx ZynqMP FPGA SoCs

  One new driver is added to talk to the BPMP firmware on NVIDIA
  Tegra210

  Existing drivers are extended for new SoC variants from NXP, NVIDIA,
  Amlogic and Qualcomm"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (113 commits)
  tee: optee: update optee_msg.h and optee_smc.h to dual license
  tee: add cancellation support to client interface
  dpaa2-eth: configure the cache stashing amount on a queue
  soc: fsl: dpio: configure cache stashing destination
  soc: fsl: dpio: enable frame data cache stashing per software portal
  soc: fsl: guts: make fsl_guts_get_svr() static
  hwrng: make symbol 'optee_rng_id_table' static
  tee: optee: Fix unsigned comparison with less than zero
  hwrng: Fix unsigned comparison with less than zero
  tee: fix possible error pointer ctx dereferencing
  hwrng: optee: Initialize some structs using memset instead of braces
  tee: optee: Initialize some structs using memset instead of braces
  soc: fsl: dpio: fix memory leak of a struct qbman on error exit path
  clk: tegra: dfll: Make symbol 'tegra210_cpu_cvb_tables' static
  soc: qcom: llcc-slice: Fix typos
  qcom: soc: llcc-slice: Consolidate some code
  qcom: soc: llcc-slice: Clear the global drv_data pointer on error
  drivers: soc: xilinx: Add ZynqMP power domain driver
  firmware: xilinx: Add APIs to control node status/power
  dt-bindings: power: Add ZynqMP power domain bindings
  ...
2019-03-06 09:41:12 -08:00
Linus Torvalds 63bdf4284c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 "API:
   - Add helper for simple skcipher modes.
   - Add helper to register multiple templates.
   - Set CRYPTO_TFM_NEED_KEY when setkey fails.
   - Require neither or both of export/import in shash.
   - AEAD decryption test vectors are now generated from encryption
     ones.
   - New option CONFIG_CRYPTO_MANAGER_EXTRA_TESTS that includes random
     fuzzing.

  Algorithms:
   - Conversions to skcipher and helper for many templates.
   - Add more test vectors for nhpoly1305 and adiantum.

  Drivers:
   - Add crypto4xx prng support.
   - Add xcbc/cmac/ecb support in caam.
   - Add AES support for Exynos5433 in s5p.
   - Remove sha384/sha512 from artpec7 as hardware cannot do partial
     hash"

[ There is a merge of the Freescale SoC tree in order to pull in changes
  required by patches to the caam/qi2 driver. ]

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (174 commits)
  crypto: s5p - add AES support for Exynos5433
  dt-bindings: crypto: document Exynos5433 SlimSSS
  crypto: crypto4xx - add missing of_node_put after of_device_is_available
  crypto: cavium/zip - fix collision with generic cra_driver_name
  crypto: af_alg - use struct_size() in sock_kfree_s()
  crypto: caam - remove redundant likely/unlikely annotation
  crypto: s5p - update iv after AES-CBC op end
  crypto: x86/poly1305 - Clear key material from stack in SSE2 variant
  crypto: caam - generate hash keys in-place
  crypto: caam - fix DMA mapping xcbc key twice
  crypto: caam - fix hash context DMA unmap size
  hwrng: bcm2835 - fix probe as platform device
  crypto: s5p-sss - Use AES_BLOCK_SIZE define instead of number
  crypto: stm32 - drop pointless static qualifier in stm32_hash_remove()
  crypto: chelsio - Fixed Traffic Stall
  crypto: marvell - Remove set but not used variable 'ivsize'
  crypto: ccp - Update driver messages to remove some confusion
  crypto: adiantum - add 1536 and 4096-byte test vectors
  crypto: nhpoly1305 - add a test vector with len % 16 != 0
  crypto: arm/aes-ce - update IV after partial final CTR block
  ...
2019-03-05 09:09:55 -08:00
Arnd Bergmann 03138ef991 ARM64: hisi: SoC driver updates for 5.1
- Add compatibility support for different FWs in the hisi LPC bus driver
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Merge tag 'hisi-drivers-for-5.1' of git://github.com/hisilicon/linux-hisi into arm/drivers

ARM64: hisi: SoC driver updates for 5.1

- Add compatibility support for different FWs in the hisi LPC bus driver

* tag 'hisi-drivers-for-5.1' of git://github.com/hisilicon/linux-hisi:
  bus: hisi_lpc: Don't fail probe for unrecognised child devices

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-15 17:32:27 +01:00
Arnd Bergmann c9235d9996 i.MX drivers update for 5.1:
- Do not get GPCv2 driver depend on SOC_IMX8MQ since the driver is
    going to be used on more SoCs than just i.MX8MQ.
  - Add power domain information into SCU bindings document.
  - Add support of start/stop a CPU into imx firmware driver.
  - Support multiple address ranges per child node for imx-weim bus
    driver.
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Merge tag 'imx-drivers-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers

i.MX drivers update for 5.1:
 - Do not get GPCv2 driver depend on SOC_IMX8MQ since the driver is
   going to be used on more SoCs than just i.MX8MQ.
 - Add power domain information into SCU bindings document.
 - Add support of start/stop a CPU into imx firmware driver.
 - Support multiple address ranges per child node for imx-weim bus
   driver.

* tag 'imx-drivers-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  firmware: imx: Add support to start/stop a CPU
  soc: imx: Break dependency on SOC_IMX8MQ for GPCv2
  firmware: imx: scu-pd: add fallback compatible string support
  dt-bindings: fsl: scu: add imx8qm scu power domain support
  dt-bindings: fsl: scu: add fallback compatible string for power domain
  bus: imx-weim: guard against timing configuration conflicts
  bus: imx-weim: support multiple address ranges per child node
  dt-bindings: bus: imx-weim: document multiple address ranges per child node
  soc: imx: gpcv2: handle reset clocks
  soc: imx: gpcv2: handle additional power-down bits in handshake register

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-15 17:17:57 +01:00
John Garry 705c0ee8d4 bus: hisi_lpc: Don't fail probe for unrecognised child devices
Currently for ACPI-based FW we fail the probe for an unrecognised child
HID.

However, there is FW in the field with LPC child devices having fake HIDs,
namely "IPI0002", which was an IPMI device invented to support the
initial out-of-tree LPC host driver, different from the final mainline
version.

To provide compatibility support for these dodgy FWs, just discard the
unrecognised HIDs instead of failing the probe altogether.

Tested-by: Zengruan Ye <yezengruan@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-02-08 09:18:53 +00:00
Tony Lindgren 072167d13c Merge branch 'pwm-dmtimer-fixes' into omap-for-v5.0/fixes-v2 2019-01-29 07:53:47 -08:00
Tony Lindgren 9bd34c63f5 bus: ti-sysc: Fix timer handling with drop pm_runtime_irq_safe()
Commit 84badc5ec5 ("ARM: dts: omap4: Move l4 child devices to probe
them with ti-sysc") started producing a warning for pwm-omap-dmtimer:

WARNING: CPU: 0 PID: 77 at drivers/bus/omap_l3_noc.c:147
l3_interrupt_handler+0x2f8/0x388
44000000.ocp:L3 Custom Error: MASTER MPU TARGET L4PER2 (Idle):
Data Access in Supervisor mode during Functional access
...
__pm_runtime_idle
omap_dm_timer_disable
pwm_omap_dmtimer_start
pwm_omap_dmtimer_enable
pwm_apply_state
pwm_vibrator_start
pwm_vibrator_play_work

This is because the timer that pwm-omap-dmtimer is using is now being
probed with ti-sysc interconnect target module instead of omap_device
and the ti-sysc quirk for SYSC_QUIRK_LEGACY_IDLE is not fully
compatible with what omap_device has been doing.

We could fix this by reverting the timer changes and have the timer
probe again with omap_device. Or we could add more quirk handling to
ti-sysc driver. But as these options don't work nicely as longer term
solutions, let's just make timers probe with ti-sysc without any
quirks.

To do this, all we need to do is remove quirks for timers for ti-sysc,
and drop the bogus pm_runtime_irq_safe() flag for timer-ti-dm.

We should not use pm_runtime_irq_safe() anyways for drivers as it will
take a permanent use count on the parent device blocking the parent
devices from idling and has been forcing ti-sysc driver to use a
quirk flag.

Note that we will move the timer data to DEBUG section later on in
clean-up patches.

Fixes: 84badc5ec5 ("ARM: dts: omap4: Move l4 child devices to probe them with ti-sysc")
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: H. Nikolaus Schaller <hns@goldelico.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Ladislav Michl <ladis@linux-mips.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Tested-By: Andreas Kemnade <andreas@kemnade.info>
Tested-By: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-01-29 07:41:15 -08:00
Ioana Ciornei afb7742281 bus: fsl-mc: automatically add a device_link on fsl_mc_[portal,object]_allocate
Allocatable devices can be acquired by drivers on the fsl-mc bus using
the fsl_mc_portal_allocate or fsl_mc_object_allocate functions. Add a
device link between the consumer device and the supplier device so that
proper resource management is achieved.
Also, adding a link between these devices ensures that a proper unbind
order is respected (ie before the supplier device is unbound from its
respective driver all consumer devices will be notified and unbound
first).

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-01-11 15:06:54 -06:00
Sven Van Asbroeck c7995bcb36 bus: imx-weim: guard against timing configuration conflicts
When specifying weim child devices, there is a risk that more than
one timing setting is specified for the same chip select.

The driver cannot support such a configuration.

In case of conflict, this patch will print a warning to the log,
and will ignore the child node in question.

In this example, node acme@1 will be ignored, as it tries to modify
timing settings for CS0:

&weim {
	acme@0 {
		compatible = "acme,whatever";
		reg = <0 0 0x100>;
		fsl,weim-cs-timing = <something>;
	};
	acme@1 {
		compatible = "acme,whatnot";
		reg = <0 0x500 0x100>;
		fsl,weim-cs-timing = <something else>;
	};
};

However in this example, the driver will be happy:

&weim {
        acme@0 {
                compatible = "acme,whatever";
                reg = <0 0 0x100>;
                fsl,weim-cs-timing = <something>;
        };
        acme@1 {
                compatible = "acme,whatnot";
                reg = <0 0x500 0x100>;
                fsl,weim-cs-timing = <something>;
        };
};

Signed-off-by: Sven Van Asbroeck <TheSven73@googlemail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-01-11 15:16:45 +08:00
Sven Van Asbroeck 8b8cb52af3 bus: imx-weim: support multiple address ranges per child node
Ensure that timing values for the child node are applied to
all chip selects in the child's address ranges.

Note that this does not support multiple timing settings per
child; this can be added in the future if required.

Example:
&weim {
	acme@0 {
		compatible = "acme,whatever";
		reg = <0 0 0x100>, <0 0x400000 0x800>,
				<1 0x400000 0x800>;
		fsl,weim-cs-timing = <0x024400b1 0x00001010 0x20081100
				0x00000000 0xa0000240 0x00000000>;
	};
};

Signed-off-by: Sven Van Asbroeck <TheSven73@googlemail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-01-11 15:16:42 +08:00
Linus Torvalds d36377c6eb ARM: SoC driver updates
Misc driver updates for platforms, many of them power related.
 
  - Rockchip adds power domain support for rk3066 and rk3188
  - Amlogic adds a power measurement driver
  - Allwinner adds SRAM support for three platforms (F1C100, H5, A64 C1)
  - Wakeup and ti-sysc (platform bus) fixes for OMAP/DRA7
  - Broadcom fixes suspend/resume with Thumb2 kernels, and improves
    stability of a handful of firmware/platform interfaces
  - PXA completes their conversion to dmaengine framework
  - Renesas does a bunch of PM cleanups across many platforms
  - Tegra adds support for suspend/resume on T186/T194, which includes
    some driver cleanups and addition of wake events
  - Tegra also adds a driver for memory controller (EMC) on Tegra2
  - i.MX tweaks power domain bindings, and adds support for i.MX8MQ in GPC
  - Atmel adds identifiers and LPDDR2 support for a new SoC, SAM9X60
 
  + misc cleanups across several platforms
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Misc driver updates for platforms, many of them power related.

   - Rockchip adds power domain support for rk3066 and rk3188

   - Amlogic adds a power measurement driver

   - Allwinner adds SRAM support for three platforms (F1C100, H5, A64
     C1)

   - Wakeup and ti-sysc (platform bus) fixes for OMAP/DRA7

   - Broadcom fixes suspend/resume with Thumb2 kernels, and improves
     stability of a handful of firmware/platform interfaces

   - PXA completes their conversion to dmaengine framework

   - Renesas does a bunch of PM cleanups across many platforms

   - Tegra adds support for suspend/resume on T186/T194, which includes
     some driver cleanups and addition of wake events

   - Tegra also adds a driver for memory controller (EMC) on Tegra2

   - i.MX tweaks power domain bindings, and adds support for i.MX8MQ in
     GPC

   - Atmel adds identifiers and LPDDR2 support for a new SoC, SAM9X60

  and misc cleanups across several platforms"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (73 commits)
  ARM: at91: add support in soc driver for new SAM9X60
  ARM: at91: add support in soc driver for LPDDR2 SiP
  memory: omap-gpmc: Use of_node_name_eq for node name comparisons
  bus: ti-sysc: Check for no-reset and no-idle flags at the child level
  ARM: OMAP2+: Check also the first dts child for hwmod flags
  soc: amlogic: meson-clk-measure: Add missing REGMAP_MMIO dependency
  soc: imx: gpc: Increase GPC_CLK_MAX to 7
  soc: renesas: rcar-sysc: Fix power domain control after system resume
  soc: renesas: rcar-sysc: Merge PM Domain registration and linking
  soc: renesas: rcar-sysc: Remove rcar_sysc_power_{down,up}() helpers
  soc: renesas: r8a77990-sysc: Fix initialization order of 3DG-{A,B}
  dt-bindings: sram: sunxi: Add compatible for the A64 SRAM C1
  dt-bindings: sram: sunxi: Add bindings for the H5 with SRAM C1
  dt-bindings: sram: Add Allwinner suniv F1C100s
  soc: sunxi: sram: Add support for the H5 SoC system control
  soc: sunxi: sram: Enable EMAC clock access for H3 variant
  soc: imx: gpcv2: add support for i.MX8MQ SoC
  soc: imx: gpcv2: move register access table to domain data
  soc: imx: gpcv2: prefix i.MX7 specific defines
  dmaengine: pxa: make the filter function internal
  ...
2018-12-31 17:32:35 -08:00
YueHaibing 2e79c18749 bus: qcom: remove duplicated include from qcom-ebi2.c
Remove duplicated include.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-19 10:40:17 +01:00
Olof Johansson a6f119a069 Few more omap driver fixes and improvments for v4.21 merge window
This series of changes improves the TI module flag handling to allow
 booting with older dts files until the module flags have been moved
 to the interconnect target module level. And there's a of_node_name_eq()
 clean-up patch from Rob Herring for the GPMC driver.
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Merge tag 'omap-for-v4.21/driver-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers

Few more omap driver fixes and improvments for v4.21 merge window

This series of changes improves the TI module flag handling to allow
booting with older dts files until the module flags have been moved
to the interconnect target module level. And there's a of_node_name_eq()
clean-up patch from Rob Herring for the GPMC driver.

* tag 'omap-for-v4.21/driver-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  memory: omap-gpmc: Use of_node_name_eq for node name comparisons
  bus: ti-sysc: Check for no-reset and no-idle flags at the child level
  ARM: OMAP2+: Check also the first dts child for hwmod flags

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-12 14:20:55 -08:00
Tony Lindgren 4014c08ba3 bus: ti-sysc: Check for no-reset and no-idle flags at the child level
With ti-sysc, we need to now have the device tree properties for
ti,no-reset-on-init and ti,no-idle-on-init at the module level instead
of the child device level.

Let's check for these properties at the child device level to enable
quirks, and warn about moving the properties to the module level.

Otherwise am335x-evm based boards tagging gpio1 with ti,no-reset-on-init
will have their DDR power disabled if wired up in such a tricky way.

Note that this should not be an issue for earlier kernels as we don't
rely on this until the dts files have been updated to probe with ti-sysc
interconnect target driver.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reported-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-12-10 14:11:26 -08:00
YueHaibing 754cac3f1c bus: fsl-mc: remove duplicated include files
Remove duplicated include.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-06 15:53:20 +01:00
Olof Johansson e5734bebed This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes
for 4.21, please pull the following changes:
 
 - James fixes the firmware interface after a commit changed the use of
   VLA and broke large transfers
 
 - Stefan adds a timeout check for Raspberry Pi firmware transactions and
   updates a bunch of SoC/firmware files to use SPDX tags
 
 - Wolfram switches the GISB bus arbiter to use dev_get_drvdata()
 
 - Yangtao provides a fix for a reference leak due to a call to
   of_find_node_by_path()
 
 - Florian fixes the CPU re-entry point out of S3 suspend with kernels
   built in Thumb2 mode
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Merge tag 'arm-soc/for-4.21/drivers' of https://github.com/Broadcom/stblinux into next/drivers

This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes
for 4.21, please pull the following changes:

- James fixes the firmware interface after a commit changed the use of
  VLA and broke large transfers

- Stefan adds a timeout check for Raspberry Pi firmware transactions and
  updates a bunch of SoC/firmware files to use SPDX tags

- Wolfram switches the GISB bus arbiter to use dev_get_drvdata()

- Yangtao provides a fix for a reference leak due to a call to
  of_find_node_by_path()

- Florian fixes the CPU re-entry point out of S3 suspend with kernels
  built in Thumb2 mode

* tag 'arm-soc/for-4.21/drivers' of https://github.com/Broadcom/stblinux:
  soc: bcm: brcmstb: Don't leak device tree node reference
  firmware: raspberrypi: Switch to SPDX identifier
  firmware: raspberrypi: Fix firmware calls with large buffers
  soc: bcm: Switch raspberrypi-power to SPDX identifier
  firmware: raspberrypi: Define timeout for transactions
  bus: brcmstb_gisb: simplify getting .driver_data
  soc: bcm: brcmstb: Fix re-entry point with a THUMB2_KERNEL

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-03 13:06:27 -08:00
Tony Lindgren f01067005e bus: ti-sysc: Detect devices for debug on omap5
We want to see the names of detected devices when DEBUG is enabled.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-11-15 14:46:53 -08:00
Tony Lindgren 2c63a833e4 bus: ti-sysc: Add mcasp optional clocks flag
We have OPT_CLKS_NEEDED in legacy platform data, but it's missing
from the ti-sysc driver for device tree based configuration.

In order to pass OPT_CLKS_NEEDED quirk flag we need to update omap4 module
data and add a new compatible for dra7 as the module layout is different
from sysc_regbits_omap4_mcasp.

Fixes: 70a65240ef ("bus: ti-sysc: Add register bits for interconnect
target modules")
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-11-15 14:46:53 -08:00
Tony Lindgren 7b4f8ac2f1 bus: ti-sysc: Fix getting optional clocks in clock_roles
We can have holes in clock_roles with interface clock missing for
example. Currently getting an optional clock will fail if there are
only a functional clock and an optional clock.

Fixes: 09dfe58107 ("bus: ti-sysc: Add handling for clkctrl opt clocks")
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-11-15 14:46:52 -08:00
Wolfram Sang 0810d5cc29 bus: brcmstb_gisb: simplify getting .driver_data
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2018-11-05 12:37:22 -08:00
Linus Torvalds b22b6beae6 ARM: SoC driver updates for 4.17
The most noteworthy SoC driver changes this time include:
 
 - The TEE subsystem gains an in-kernel interface to access the TEE
   from device drivers.
 
 - The reset controller subsystem gains a driver for the Qualcomm
   Snapdragon 845 Power Domain Controller.
 
 - The Xilinx Zynq platform now has a firmware interface for its
   platform management unit. This contains a firmware "ioctl" interface
   that was a little controversial at first, but the version we merged
   solved that by not exposing arbitrary firmware calls to user space.
 
 - The Amlogic Meson platform gains a "canvas" driver that is used
   for video processing and shared between different high-level drivers.
 
 The rest is more of the usual, mostly related to SoC specific power
 management support and core drivers in drivers/soc:
 
 - Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new
   features related to power and reset control.
 
 - The Mediatek mt8183 and mt6765 SoC platforms gain support for
   their respective power management chips.
 
 - A new driver for NXP i.MX8, which need a firmware interface for
   power management.
 
 - The SCPI firmware interface now contains support estimating power
   usage of performance states
 
 - The NVIDIA Tegra "pmc" driver gains a few new features, in particular
   a pinctrl interface for configuring the pads.
 
 - Lots of small changes for Qualcomm, in particular the "smem"
   device driver.
 
 - Some cleanups for the TI OMAP series related to their sysc
   controller.
 
 Additional cleanups and bugfixes in SoC specific drivers include the
 Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "The most noteworthy SoC driver changes this time include:

   - The TEE subsystem gains an in-kernel interface to access the TEE
     from device drivers.

   - The reset controller subsystem gains a driver for the Qualcomm
     Snapdragon 845 Power Domain Controller.

   - The Xilinx Zynq platform now has a firmware interface for its
     platform management unit. This contains a firmware "ioctl"
     interface that was a little controversial at first, but the version
     we merged solved that by not exposing arbitrary firmware calls to
     user space.

   - The Amlogic Meson platform gains a "canvas" driver that is used for
     video processing and shared between different high-level drivers.

  The rest is more of the usual, mostly related to SoC specific power
  management support and core drivers in drivers/soc:

   - Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new
     features related to power and reset control.

   - The Mediatek mt8183 and mt6765 SoC platforms gain support for their
     respective power management chips.

   - A new driver for NXP i.MX8, which need a firmware interface for
     power management.

   - The SCPI firmware interface now contains support estimating power
     usage of performance states

   - The NVIDIA Tegra "pmc" driver gains a few new features, in
     particular a pinctrl interface for configuring the pads.

   - Lots of small changes for Qualcomm, in particular the "smem" device
     driver.

   - Some cleanups for the TI OMAP series related to their sysc
     controller.

  Additional cleanups and bugfixes in SoC specific drivers include the
  Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (129 commits)
  firmware: tegra: bpmp: Implement suspend/resume support
  drivers: clk: Add ZynqMP clock driver
  dt-bindings: clock: Add bindings for ZynqMP clock driver
  firmware: xilinx: Add zynqmp IOCTL API for device control
  Documentation: xilinx: Add documentation for eemi APIs
  MAINTAINERS: imx: include drivers/firmware/imx path
  firmware: imx: add misc svc support
  firmware: imx: add SCU firmware driver support
  reset: Fix potential use-after-free in __of_reset_control_get()
  dt-bindings: arm: fsl: add scu binding doc
  soc: fsl: qbman: add interrupt coalesce changing APIs
  soc: fsl: bman_portals: defer probe after bman's probe
  soc: fsl: qbman: Use last response to determine valid bit
  soc: fsl: qbman: Add 64 bit DMA addressing requirement to QBMan
  soc: fsl: qbman: replace CPU 0 with any online CPU in hotplug handlers
  soc: fsl: qbman: Check if CPU is offline when initializing portals
  reset: qcom: PDC Global (Power Domain Controller) reset controller
  dt-bindings: reset: Add PDC Global binding for SDM845 SoCs
  reset: Grammar s/more then once/more than once/
  bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS
  ...
2018-10-29 15:16:01 -07:00
Linus Torvalds b27186abb3 Devicetree updates for 4.20:
- Sync dtc with upstream version v1.4.7-14-gc86da84d30e4
 
 - Work to get rid of direct accesses to struct device_node name and
   type pointers in preparation for removing them. New helpers for
   parsing DT cpu nodes and conversions to use the helpers. printk
   conversions to %pOFn for printing DT node names. Most went thru
   subystem trees, so this is the remainder.
 
 - Fixes to DT child node lookups to actually be restricted to child
   nodes instead of treewide.
 
 - Refactoring of dtb targets out of arch code. This makes the support
   more uniform and enables building all dtbs on c6x, microblaze, and
   powerpc.
 
 - Various DT binding updates for Renesas r8a7744 SoC
 
 - Vendor prefixes for Facebook, OLPC
 
 - Restructuring of some ARM binding docs moving some peripheral bindings
   out of board/SoC binding files
 
 - New "secure-chosen" binding for secure world settings on ARM
 
 - Dual licensing of 2 DT IRQ binding headers
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Merge tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree updates from Rob Herring:
 "A bit bigger than normal as I've been busy this cycle.

  There's a few things with dependencies and a few things subsystem
  maintainers didn't pick up, so I'm taking them thru my tree.

  The fixes from Johan didn't get into linux-next, but they've been
  waiting for some time now and they are what's left of what subsystem
  maintainers didn't pick up.

  Summary:

   - Sync dtc with upstream version v1.4.7-14-gc86da84d30e4

   - Work to get rid of direct accesses to struct device_node name and
     type pointers in preparation for removing them. New helpers for
     parsing DT cpu nodes and conversions to use the helpers. printk
     conversions to %pOFn for printing DT node names. Most went thru
     subystem trees, so this is the remainder.

   - Fixes to DT child node lookups to actually be restricted to child
     nodes instead of treewide.

   - Refactoring of dtb targets out of arch code. This makes the support
     more uniform and enables building all dtbs on c6x, microblaze, and
     powerpc.

   - Various DT binding updates for Renesas r8a7744 SoC

   - Vendor prefixes for Facebook, OLPC

   - Restructuring of some ARM binding docs moving some peripheral
     bindings out of board/SoC binding files

   - New "secure-chosen" binding for secure world settings on ARM

   - Dual licensing of 2 DT IRQ binding headers"

* tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (78 commits)
  ARM: dt: relicense two DT binding IRQ headers
  power: supply: twl4030-charger: fix OF sibling-node lookup
  NFC: nfcmrvl_uart: fix OF child-node lookup
  net: stmmac: dwmac-sun8i: fix OF child-node lookup
  net: bcmgenet: fix OF child-node lookup
  drm/msm: fix OF child-node lookup
  drm/mediatek: fix OF sibling-node lookup
  of: Add missing exports of node name compare functions
  dt-bindings: Add OLPC vendor prefix
  dt-bindings: misc: bk4: Add device tree binding for Liebherr's BK4 SPI bus
  dt-bindings: thermal: samsung: Add SPDX license identifier
  dt-bindings: clock: samsung: Add SPDX license identifiers
  dt-bindings: timer: ostm: Add R7S9210 support
  dt-bindings: phy: rcar-gen2: Add r8a7744 support
  dt-bindings: can: rcar_can: Add r8a7744 support
  dt-bindings: timer: renesas, cmt: Document r8a7744 CMT support
  dt-bindings: watchdog: renesas-wdt: Document r8a7744 support
  dt-bindings: thermal: rcar: Add device tree support for r8a7744
  Documentation: dt: Add binding for /secure-chosen/stdout-path
  dt-bindings: arm: zte: Move sysctrl bindings to their own doc
  ...
2018-10-26 12:09:58 -07:00
Linus Torvalds d1f2b1710d IOMMU Updates for Linux v4.20
These updates bring:
 
 	- Debugfs support for the Intel VT-d driver. When enabled, it
 	  now also exposes some of its internal data structures to
 	  user-space for debugging purposes.
 
 	- ARM-SMMU driver now uses the generic deferred flushing
 	  and fast-path iova allocation code. This is expected to be a
 	  major performance improvement, as this allocation path scales
 	  a lot better.
 
 	- Support for r8a7744 in the Renesas iommu driver
 
 	- Couple of minor fixes and improvements all over the place
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Merge tag 'iommu-updates-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU updates from Joerg Roedel:

 - Debugfs support for the Intel VT-d driver.

   When enabled, it now also exposes some of its internal data
   structures to user-space for debugging purposes.

 - ARM-SMMU driver now uses the generic deferred flushing and fast-path
   iova allocation code.

   This is expected to be a major performance improvement, as this
   allocation path scales a lot better.

 - Support for r8a7744 in the Renesas iommu driver

 - Couple of minor fixes and improvements all over the place

* tag 'iommu-updates-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (39 commits)
  iommu/arm-smmu-v3: Remove unnecessary wrapper function
  iommu/arm-smmu-v3: Add SPDX header
  iommu/amd: Add default branch in amd_iommu_capable()
  dt-bindings: iommu: ipmmu-vmsa: Add r8a7744 support
  iommu/amd: Move iommu_init_pci() to .init section
  iommu/arm-smmu: Support non-strict mode
  iommu/io-pgtable-arm-v7s: Add support for non-strict mode
  iommu/arm-smmu-v3: Add support for non-strict mode
  iommu/io-pgtable-arm: Add support for non-strict mode
  iommu: Add "iommu.strict" command line option
  iommu/dma: Add support for non-strict mode
  iommu/arm-smmu: Ensure that page-table updates are visible before TLBI
  iommu/arm-smmu-v3: Implement flush_iotlb_all hook
  iommu/arm-smmu-v3: Avoid back-to-back CMD_SYNC operations
  iommu/arm-smmu-v3: Fix unexpected CMD_SYNC timeout
  iommu/io-pgtable-arm: Fix race handling in split_blk_unmap()
  iommu/arm-smmu-v3: Fix a couple of minor comment typos
  iommu: Fix a typo
  iommu: Remove .domain_{get,set}_windows
  iommu: Tidy up window attributes
  ...
2018-10-26 10:50:10 -07:00
Linus Torvalds 62606c224d Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Remove VLA usage
   - Add cryptostat user-space interface
   - Add notifier for new crypto algorithms

  Algorithms:
   - Add OFB mode
   - Remove speck

  Drivers:
   - Remove x86/sha*-mb as they are buggy
   - Remove pcbc(aes) from x86/aesni
   - Improve performance of arm/ghash-ce by up to 85%
   - Implement CTS-CBC in arm64/aes-blk, faster by up to 50%
   - Remove PMULL based arm64/crc32 driver
   - Use PMULL in arm64/crct10dif
   - Add aes-ctr support in s5p-sss
   - Add caam/qi2 driver

  Others:
   - Pick better transform if one becomes available in crc-t10dif"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (124 commits)
  crypto: chelsio - Update ntx queue received from cxgb4
  crypto: ccree - avoid implicit enum conversion
  crypto: caam - add SPDX license identifier to all files
  crypto: caam/qi - simplify CGR allocation, freeing
  crypto: mxs-dcp - make symbols 'sha1_null_hash' and 'sha256_null_hash' static
  crypto: arm64/aes-blk - ensure XTS mask is always loaded
  crypto: testmgr - fix sizeof() on COMP_BUF_SIZE
  crypto: chtls - remove set but not used variable 'csk'
  crypto: axis - fix platform_no_drv_owner.cocci warnings
  crypto: x86/aes-ni - fix build error following fpu template removal
  crypto: arm64/aes - fix handling sub-block CTS-CBC inputs
  crypto: caam/qi2 - avoid double export
  crypto: mxs-dcp - Fix AES issues
  crypto: mxs-dcp - Fix SHA null hashes and output length
  crypto: mxs-dcp - Implement sha import/export
  crypto: aegis/generic - fix for big endian systems
  crypto: morus/generic - fix for big endian systems
  crypto: lrw - fix rebase error after out of bounds fix
  crypto: cavium/nitrox - use pci_alloc_irq_vectors() while enabling MSI-X.
  crypto: cavium/nitrox - NITROX command queue changes.
  ...
2018-10-25 16:43:35 -07:00
Linus Torvalds 114b5f8f7e This is the bulk of GPIO changes for the v4.20 series:
Core changes:
 
 - A patch series from Hans Verkuil to make it possible to
   enable/disable IRQs on a GPIO line at runtime and drive GPIO
   lines as output without having to put/get them from scratch.
   The irqchip callbacks have been improved so that they can
   use only the fastpatch callbacks to enable/disable irqs
   like any normal irqchip, especially the gpiod_lock_as_irq()
   has been improved to be callable in fastpath context.
   A bunch of rework had to be done to achieve this but it is
   a big win since I never liked to restrict this to slowpath.
   The only call requireing slowpath was try_module_get() and
   this is kept at the .request_resources() slowpath callback.
   In the GPIO CEC driver this is a big win sine a single
   line is used for both outgoing and incoming traffic, and
   this needs to use IRQs for incoming traffic while actively
   driving the line for outgoing traffic.
 
 - Janusz Krzysztofik improved the GPIO array API to pass a
   "cookie" (struct gpio_array) and a bitmap for setting or
   getting multiple GPIO lines at once. This improvement
   orginated in a specific need to speed up an OMAP1 driver and
   has led to a much better API and real performance gains
   when the state of the array can be used to bypass a lot
   of checks and code when we want things to go really fast.
   The previous code would minimize the number of calls
   down to the driver callbacks assuming the CPU speed was
   orders of magnitude faster than the I/O latency, but this
   assumption was wrong on several platforms: what we needed
   to do was to profile and improve the speed on the hot
   path of the array functions and this change is now
   completed.
 
 - Clean out the painful and hard to grasp BNF experiments
   from the device tree bindings. Future approaches are looking
   into using JSON schema for this purpose. (Rob Herring
   is floating a patch series.)
 
 New drivers:
 
 - The RCAR driver now supports r8a774a1 (RZ/G2M).
 
 - Synopsys GPIO via CREGs driver.
 
 Major improvements:
 
 - Modernization of the EP93xx driver to use irqdomain and
   other contemporary concepts.
 
 - The ingenic driver has been merged into the Ingenic pin
   control driver and removed from the GPIO subsystem.
 
 - Debounce support in the ftgpio010 driver.
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Merge tag 'gpio-v4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.20 series:

  Core changes:

   - A patch series from Hans Verkuil to make it possible to
     enable/disable IRQs on a GPIO line at runtime and drive GPIO lines
     as output without having to put/get them from scratch.

     The irqchip callbacks have been improved so that they can use only
     the fastpatch callbacks to enable/disable irqs like any normal
     irqchip, especially the gpiod_lock_as_irq() has been improved to be
     callable in fastpath context.

     A bunch of rework had to be done to achieve this but it is a big
     win since I never liked to restrict this to slowpath. The only call
     requireing slowpath was try_module_get() and this is kept at the
     .request_resources() slowpath callback. In the GPIO CEC driver this
     is a big win sine a single line is used for both outgoing and
     incoming traffic, and this needs to use IRQs for incoming traffic
     while actively driving the line for outgoing traffic.

   - Janusz Krzysztofik improved the GPIO array API to pass a "cookie"
     (struct gpio_array) and a bitmap for setting or getting multiple
     GPIO lines at once.

     This improvement orginated in a specific need to speed up an OMAP1
     driver and has led to a much better API and real performance gains
     when the state of the array can be used to bypass a lot of checks
     and code when we want things to go really fast.

     The previous code would minimize the number of calls down to the
     driver callbacks assuming the CPU speed was orders of magnitude
     faster than the I/O latency, but this assumption was wrong on
     several platforms: what we needed to do was to profile and improve
     the speed on the hot path of the array functions and this change is
     now completed.

   - Clean out the painful and hard to grasp BNF experiments from the
     device tree bindings. Future approaches are looking into using JSON
     schema for this purpose. (Rob Herring is floating a patch series.)

  New drivers:

   - The RCAR driver now supports r8a774a1 (RZ/G2M).

   - Synopsys GPIO via CREGs driver.

  Major improvements:

   - Modernization of the EP93xx driver to use irqdomain and other
     contemporary concepts.

   - The ingenic driver has been merged into the Ingenic pin control
     driver and removed from the GPIO subsystem.

   - Debounce support in the ftgpio010 driver"

* tag 'gpio-v4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (116 commits)
  gpio: Clarify kerneldoc on gpiochip_set_chained_irqchip()
  gpio: Remove unused 'irqchip' argument to gpiochip_set_cascaded_irqchip()
  gpio: Drop parent irq assignment during cascade setup
  mmc: pwrseq_simple: Fix incorrect handling of GPIO bitmap
  gpio: fix SNPS_CREG kconfig dependency warning
  gpiolib: Initialize gdev field before is used
  gpio: fix kernel-doc after devres.c file rename
  gpio: fix doc string for devm_gpiochip_add_data() to not talk about irq_chip
  gpio: syscon: Fix possible NULL ptr usage
  gpiolib: Show correct direction from the beginning
  pinctrl: msm: Use init_valid_mask exported function
  gpiolib: Add init_valid_mask exported function
  GPIO: add single-register GPIO via CREG driver
  dt-bindings: Document the Synopsys GPIO via CREG bindings
  gpio: mockup: use device properties instead of platform_data
  gpio: Slightly more helpful debugfs
  gpio: omap: Remove set but not used variable 'dev'
  gpio: omap: drop omap_gpio_list
  Accept partial 'gpio-line-names' property.
  gpio: omap: get rid of the conditional PM runtime calls
  ...
2018-10-23 08:45:05 +01:00
Arnd Bergmann e51e8d5de9 TI sysc driver changes for v4.20 merge window
This series gets rid of the SYSC_QUIRK_RESOURCE_PROVIDER to make device
 detection happen mostly only if #define DEBUG is set. Few core devices still
 need to be detected to set legacy quirks.
 
 We also add support for booting am335x, am437x and dra7 SoCs with L4 devices
 defined in device tree instead of legacy platform data.
 
 And finally we simplify suspend with just SET_NOIRQ_SYSTEM_SLEEP_PM_OPS
 and dropping the custom functions that were attempting to work around
 issues that really turned out to be child device driver related issues.
 
 Apologies for a late pull request, debugging the suspend issues took a while
 and I did not want to send these changes until that got sorted out.
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Merge tag 'omap-for-v4.20/ti-sysc-take2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers

TI sysc driver changes for v4.20 merge window

This series gets rid of the SYSC_QUIRK_RESOURCE_PROVIDER to make device
detection happen mostly only if #define DEBUG is set. Few core devices still
need to be detected to set legacy quirks.

We also add support for booting am335x, am437x and dra7 SoCs with L4 devices
defined in device tree instead of legacy platform data.

And finally we simplify suspend with just SET_NOIRQ_SYSTEM_SLEEP_PM_OPS
and dropping the custom functions that were attempting to work around
issues that really turned out to be child device driver related issues.

Apologies for a late pull request, debugging the suspend issues took a while
and I did not want to send these changes until that got sorted out.

* tag 'omap-for-v4.20/ti-sysc-take2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS
  bus: ti-sysc: Make some warnings debug only
  bus: ti-sysc: Detect devices for debug on dra7
  bus: ti-sysc: Detect timer and gpio on dra7
  bus: ti-sysc: Detect devices on am335x when DEBUG is enabled
  bus: ti-sysc: Detect more devices on am473x for debugging
  bus: ti-sysc: Update revision masks to support am437x
  bus: ti-sysc: Defer suspend as needed

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-10-04 17:21:44 +02:00
Tony Lindgren f5e80203da bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS
As Grygorii Strashko pointed out, the runtime PM use count of the
children can be whatever at suspend and we should not use it. So
let's just suspend ti-sysc at noirq level and get rid of some code.

Let's also remove the PM_SLEEP ifdef and use __maybe_unused as the
PM code already deals with the ifdefs.

Suggested-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-10-01 09:33:28 -07:00
Rob Herring b1a2344536 bus: imx-weim: drop unnecessary DT node name NULL check
Checking the child node names is pointless as the DT node name can
never be NULL, so remove it.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-10-01 13:24:15 +08:00
Tony Lindgren f949078302 bus: ti-sysc: Make some warnings debug only
We're currently warning about busy children on suspend in
sysc_child_suspend_noirq() but the legacy code omap_device does
not do that. Let's just make it dev_dbg() instead of dev_warn().

Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-09-28 15:27:33 -07:00
Tony Lindgren c6eb4af39f bus: ti-sysc: Detect devices for debug on dra7
We want to see the names of detected devices when DEBUG is enabled.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-09-28 15:27:31 -07:00
Tony Lindgren 3a3d802b02 bus: ti-sysc: Detect timer and gpio on dra7
We need to detect timer and gpio on dra7 because of the
SYSC_QUIRK_LEGACY_IDLE flag for suspend and resume.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-09-28 15:27:28 -07:00
Tony Lindgren 472c54f019 Merge commit '4f3530f4a41d49c41015020cd9a5ed5c95b5d2db' into omap-for-v4.20/ti-sysc 2018-09-28 15:27:21 -07:00