Commit Graph

561076 Commits

Author SHA1 Message Date
Lars-Peter Clausen d0fe5258e6 i2c: xiic: Prevent concurrent running of the IRQ handler and __xiic_start_xfer()
Prior to commit e6c9a037bc ("i2c: xiic: Remove the disabling of
interrupts") IRQs where disabled when the initial __xiic_start_xfer() was
called. After the commit the interrupt is enabled while the function is
running, this means it is possible for the interrupt to be triggered while
the function is still running. When this happens the internal data
structures get corrupted and undefined behavior can occur like the
following crash:

	Internal error: Oops: 17 [#1] PREEMPT SMP ARM
	Modules linked in:
	CPU: 0 PID: 2040 Comm: i2cdetect Not tainted 4.0.0-02856-g047a308 #10956
	Hardware name: Xilinx Zynq Platform
	task: ee0c9500 ti: e99a2000 task.ti: e99a2000
	PC is at __xiic_start_xfer+0x6c4/0x7c8
	LR is at __xiic_start_xfer+0x690/0x7c8
	pc : [<c02bbffc>]    lr : [<c02bbfc8>]    psr: 800f0013
	sp : e99a3da8  ip : 00000000  fp : 00000000
	r10: 00000001  r9 : 600f0013  r8 : f0180000
	r7 : f0180000  r6 : c064e444  r5 : 00000017  r4 : ee031010
	r3 : 00000000  r2 : 00000000  r1 : 600f0013  r0 : 0000000f
	Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
	Control: 18c5387d  Table: 29a5404a  DAC: 00000015
	Process i2cdetect (pid: 2040, stack limit = 0xe99a2210)
	Stack: (0xe99a3da8 to 0xe99a4000)
	3da0:                   ee031010 00000000 00000001 ee031020 ee031224 c02bc5ec
	3dc0: ee34c604 00000000 ee0c9500 e99a3dcc e99a3dd0 e99a3dd0 e99a3dd8 c069f0e8
	3de0: 00000000 ee031020 c064e100 ffff90bb e99a3e48 c02b6590 ee031020 00000001
	3e00: e99a3e48 ee031020 00000000 e99a3e63 00000001 c02b6ec4 00000000 00000000
	3e20: 00000000 c02b7320 e99a3ef0 00000000 00000000 e99e3df0 00000000 00000000
	3e40: 00000103 2814575f 0000003e c00a0000 e99a3e85 0001003e ee0c0000 e99a3e63
	3e60: eefd3578 c064e61c ee0c9500 c0041e04 0000056c e9a56db8 00006e5a b6f5c000
	3e80: ee0c9548 eefd0040 00000001 eefd3540 ee0c9500 eefd39a0 c064b540 ee0c9500
	3ea0: 00000000 ee92b000 00000000 bef4862c ee34c600 e99ecdc0 00000720 00000003
	3ec0: e99a2000 00000000 00000000 c02b8b30 00000000 00000000 00000000 e99a3f24
	3ee0: b6e80000 00000000 00000000 c04257e8 00000000 e99a3f24 c02b8f08 00000703
	3f00: 00000003 c02116bc ee935300 00000000 bef4862c ee34c600 e99ecdc0 c02b91f0
	3f20: e99ecdc0 00000720 bef4862c eeb725f8 e99ecdc0 c00c9e2c 00000003 00000003
	3f40: ee248dc0 00000000 ee248dc8 00000002 eeb7c1a8 00000000 00000000 c00bb360
	3f60: 00000000 00000000 00000003 ee248dc0 bef4862c e99ecdc0 e99ecdc0 00000720
	3f80: 00000003 e99a2000 00000000 c00c9f68 00000000 00000000 b6f22000 00000036
	3fa0: c000dfa4 c000de20 00000000 00000000 00000003 00000720 bef4862c bef4862c
	3fc0: 00000000 00000000 b6f22000 00000036 00000000 00000000 b6f60000 00000000
	3fe0: 00013040 bef48614 00008cab b6ecdbe6 400f0030 00000003 2f7fd821 2f7fdc21
	[<c02bbffc>] (__xiic_start_xfer) from [<c02bc5ec>] (xiic_xfer+0x94/0x168)
	[<c02bc5ec>] (xiic_xfer) from [<c02b6590>] (__i2c_transfer+0x4c/0x7c)
	[<c02b6590>] (__i2c_transfer) from [<c02b6ec4>] (i2c_transfer+0x9c/0xc4)
	[<c02b6ec4>] (i2c_transfer) from [<c02b7320>] (i2c_smbus_xfer+0x3a0/0x4ec)
	[<c02b7320>] (i2c_smbus_xfer) from [<c02b8b30>] (i2cdev_ioctl_smbus+0xb0/0x214)
	[<c02b8b30>] (i2cdev_ioctl_smbus) from [<c02b91f0>] (i2cdev_ioctl+0xa0/0x1d4)
	[<c02b91f0>] (i2cdev_ioctl) from [<c00c9e2c>] (do_vfs_ioctl+0x4b0/0x5b8)
	[<c00c9e2c>] (do_vfs_ioctl) from [<c00c9f68>] (SyS_ioctl+0x34/0x5c)
	[<c00c9f68>] (SyS_ioctl) from [<c000de20>] (ret_fast_syscall+0x0/0x34)
	Code: e283300c e5843210 eafffe64 e5943210 (e1d320b4)

The issue can easily be reproduced by performing I2C access under high
system load or IO load.

To fix the issue protect the invocation to __xiic_start_xfer() form
xiic_start_xfer() with the same lock that is used to protect the interrupt
handler.

Fixes: e6c9a037bc ("i2c: xiic: Remove the disabling of interrupts")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Shubhrajyoti Datta <shubhraj@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-11-20 16:15:35 +01:00
Lars-Peter Clausen 9656eeebf3 i2c: Revert "i2c: xiic: Do not reset controller before every transfer"
Commit d701667bb3 ("i2c: xiic: Do not reset controller before every
transfer") removed the reinitialization of the controller before the start
of each transfer. Apparently this change is not safe to make and the commit
results in random I2C bus failures.

An easy way to trigger the issue is to run i2cdetect.

Without the patch applied:
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
	 00:          -- -- -- -- -- -- -- -- -- -- -- -- --
	 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
	 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
	 30: -- -- -- -- -- -- -- -- UU UU -- UU 3c -- -- UU
	 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
	 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
	 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
	 70: -- -- -- -- -- -- -- --

With the patch applied every other or so invocation:
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
	 00:          03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
	 10: 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
	 20: 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f
	 30: -- -- -- -- -- -- -- -- UU UU -- UU 3c -- -- UU
	 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
	 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
	 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
	 70: -- -- -- -- -- -- -- --

So revert the commit for now.

Fixes: d701667bb3 ("i2c: xiic: Do not reset controller before every transfer")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Shubhrajyoti Datta <shubhraj@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-11-20 16:04:59 +01:00
Hou Zhiqiang 8bb6fd585d i2c: imx: fix a compiling error
drivers/i2c/busses/i2c-imx.c:978:2: error: implicit declaration of
function ‘pinctrl_select_state’ [-Werror=implicit-function-declaration]
  pinctrl_select_state(i2c_imx->pinctrl, i2c_imx->pinctrl_pins_gpio);
  ^

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@freescale.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-11-20 15:58:22 +01:00
Alban Bedel 55f1d5988c MIPS: ath79: Add a machine entry for booting OF machines
As I'm using a board with a broken old bootloader I hardcoded the
mips_machtype and did't notice that the machine entry was still
missing.

[ralf@linux-mips.org: Fixed spelling message noticed by Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com>.]

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11503/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-20 15:44:57 +01:00
Alban Bedel accbfb52d0 MIPS: ath79: Fix the size of the MISC INTC registers in ar9132.dtsi
There is 2 registers that is 8 bytes long, not 4.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alexander Couzens <lynxis@fe80.eu>
Cc: Joel Porquet <joel@porquet.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11508/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-20 12:14:27 +01:00
Alban Bedel 5011a7e808 MIPS: ath79: Fix the DDR control initialization on ar71xx and ar934x
The DDR control initialization needs to know the SoC type, however
ath79_detect_sys_type() was called after ath79_ddr_ctrl_init().
Reverse the order to fix the DDR control initialization on ar71xx and
ar934x.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
CC: stable@vger.kernel.org # v4.2+
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11500/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-20 12:10:09 +01:00
Helge Deller 1e208ae732 parisc: Drop definition of start_thread_som for HP-UX SOM binaries
The definition of start_thread_som was planned to be used to execute
HP-UX SOM binaries. Since HP-UX compatibility was dropped with kernel 4.0
there is no need to carry it further.

Signed-off-by: Helge Deller <deller@gmx.de>
2015-11-20 10:19:19 +01:00
Helge Deller 2b3f344510 parisc: Fix wrong comment regarding first pmd entry flags
The first pmd entry is marked with PxD_FLAG_ATTACHED instead of
_PAGE_GATEWAY.

Signed-off-by: Helge Deller <deller@gmx.de>
2015-11-20 10:19:18 +01:00
Linus Torvalds 86eaf54d07 dmaengine fixes for 4.4-rc2
This has odd fixes spreadout drivers, not major here
    - usbdmac fixes for pm
    - edma build and logic fixes
    - build warn fixes for few drivers
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Merge tag 'dmaengine-fix-4.4-rc2' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "This has odd fixes spreadout drivers, not major here

   - usbdmac fixes for pm
   - edma build and logic fixes
   - build warn fixes for few drivers"

* tag 'dmaengine-fix-4.4-rc2' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: at_hdmac: use %pad format string for dma_addr_t
  dmaengine: at_xdmac: use %pad format string for dma_addr_t
  dmaengine: imx-sdma: remove __init annotation on sdma_event_remap
  dmaengine: edma: predecence bug in GET_NUM_QDMACH()
  dmaengine: edma: fix build without CONFIG_OF
  dmaengine: of_dma: Correct return code for of_dma_request_slave_channel in case !CONFIG_OF
  dmaengine: sh: usb-dmac: Fix pm_runtime_{enable,disable}() imbalance
  dmaengine: sh: usb-dmac: Fix crash on runtime suspend
2015-11-19 20:51:31 -08:00
Linus Torvalds c69bde78f0 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "A varied bunch of fixes, the radeon pull is probably a bit larger than
  I'd like, but it contains 2 weeks of stuff, and the Fiji fixes are a
  bit large, but they are Fiji specific.

  Otherwise:

   - mgag200: One cursor regression oops fix.
   - vc4: A few small fixes and cleanups.
   - core: Atomic fixes and Atomic helper fixes
   - i915: Revert for the backlight regression along with a bunch of
     fixes"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (58 commits)
  drm/atomic-helper: Check encoder/crtc constraints
  Revert "drm/i915: skip modeset if compatible for everyone."
  drm/mgag200: fix kernel hang in cursor code.
  drm/amdgpu: reserve/unreserve objects out of map/unmap operations
  drm/amdgpu: move bo_reserve out of amdgpu_vm_clear_bo
  drm/amdgpu: add lock for interval tree in vm
  drm/amdgpu: keep the owner for VMIDs
  drm/amdgpu: move VM manager clean into the VM code again
  drm/amdgpu: cleanup VM coding style
  drm/amdgpu: remove unused VM manager field
  drm/amdgpu: cleanup scheduler command submission
  drm/amdgpu: fix typo in firmware name
  drm/i915: Consider SPLL as another shared pll, v2.
  drm/i915: Fix gpu frequency change tracing
  drm/vc4: Make sure that planes aren't scaled.
  drm/vc4: Fix some failure to track __iomem decorations on pointers.
  drm/vc4: checking for NULL instead of IS_ERR
  drm/vc4: fix itnull.cocci warnings
  drm/vc4: fix platform_no_drv_owner.cocci warnings
  drm/vc4: vc4_plane_duplicate_state() can be static
  ...
2015-11-19 20:39:38 -08:00
Linus Torvalds cd6caf550a ome fixes for small IPMI problems.
The most significant is that the driver wasn't starting the timer
 for some messages, which would result in problems if that message
 failed for some reason.
 
 The others are small optimizations or making things a little neater.
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Merge tag 'for-linus-4.4' of git://git.code.sf.net/p/openipmi/linux-ipmi

Pull IPMI updates from Corey Minyard:
 "Some fixes for small IPMI problems.

  The most significant is that the driver wasn't starting the timer for
  some messages, which would result in problems if that message failed
  for some reason.

  The others are small optimizations or making things a little neater"

* tag 'for-linus-4.4' of git://git.code.sf.net/p/openipmi/linux-ipmi:
  ipmi watchdog : add panic_wdt_timeout parameter
  char: ipmi: Move MODULE_DEVICE_TABLE() to follow struct
  ipmi: Stop the timer immediately if idle
  ipmi: Start the timer and thread on internal msgs
2015-11-19 18:14:47 -08:00
Linus Torvalds 8bdddfae65 SH Drivers Updates for v4.4
* Remove now unnecessary reference to CONFIG_ARCH_SHMOBILE_MULTI
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Merge tag 'renesas-sh-drivers-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas

Pull SH driver fixlet from Simon Horman:
 "I am sending this change after v4.4-rc1 has been released as it
  depends on SoC changes which are present in that rc:

   = Remove now unnecessary reference to CONFIG_ARCH_SHMOBILE_MULTI"

* tag 'renesas-sh-drivers-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  drivers: sh: Get rid of CONFIG_ARCH_SHMOBILE_MULTI
2015-11-19 17:58:44 -08:00
Jiri Slaby 19cd80a214 usblp: do not set TASK_INTERRUPTIBLE before lock
It is not permitted to set task state before lock. usblp_wwait sets
the state to TASK_INTERRUPTIBLE and calls mutex_lock_interruptible.
Upon return from that function, the state will be TASK_RUNNING again.

This is clearly a bug and a warning is generated with LOCKDEP too:
WARNING: CPU: 1 PID: 5109 at kernel/sched/core.c:7404 __might_sleep+0x7d/0x90()
do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffffa0c588d0>] usblp_wwait+0xa0/0x310 [usblp]
Modules linked in: ...
CPU: 1 PID: 5109 Comm: captmon Tainted: G        W       4.2.5-0.gef2823b-default #1
Hardware name: LENOVO 23252SG/23252SG, BIOS G2ET33WW (1.13 ) 07/24/2012
 ffffffff81a4edce ffff880236ec7ba8 ffffffff81716651 0000000000000000
 ffff880236ec7bf8 ffff880236ec7be8 ffffffff8106e146 0000000000000282
 ffffffff81a50119 000000000000028b 0000000000000000 ffff8802dab7c508
Call Trace:
...
 [<ffffffff8106e1c6>] warn_slowpath_fmt+0x46/0x50
 [<ffffffff8109a8bd>] __might_sleep+0x7d/0x90
 [<ffffffff8171b20f>] mutex_lock_interruptible_nested+0x2f/0x4b0
 [<ffffffffa0c588fc>] usblp_wwait+0xcc/0x310 [usblp]
 [<ffffffffa0c58bb2>] usblp_write+0x72/0x350 [usblp]
 [<ffffffff8121ed98>] __vfs_write+0x28/0xf0
...

Commit 7f477358e2 (usblp: Implement the
ENOSPC convention) moved the set prior locking. So move it back after
the lock.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Fixes: 7f477358e2 ("usblp: Implement the ENOSPC convention")
Acked-By: Pete Zaitcev <zaitcev@yahoo.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-19 16:31:42 -08:00
Simon Arlott 44243ef42d USB: MAINTAINERS: cxacru
Make cxacru an orphan. I still have a few of these devices for testing
but haven't had an ADSL1 connection for several years.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Duncan Sands <baldrick@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-19 16:31:42 -08:00
Peter Chen c4f161308a usb: kconfig: fix warning of select USB_OTG
When choose randconfig for kernel build, it reports below warning:
"warning: (USB_OTG_FSM && FSL_USB2_OTG && USB_MV_OTG) selects USB_OTG
which has unmet direct dependencies (USB_SUPPORT && USB && PM)"

In fact, USB_OTG is visible symbol and depends on PM, so the driver
needs to depend on it to reduce dependency problem.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Cc: Felipe Balbi <balbi@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-19 16:31:42 -08:00
Bjørn Mork 638148e20c USB: option: add XS Stick W100-2 from 4G Systems
Thomas reports
"
4gsystems sells two total different LTE-surfsticks under the same name.
..
The newer version of XS Stick W100 is from "omega"
..
Under windows the driver switches to the same ID, and uses MI03\6 for
network and MI01\6 for modem.
..
echo "1c9e 9b01" > /sys/bus/usb/drivers/qmi_wwan/new_id
echo "1c9e 9b01" > /sys/bus/usb-serial/drivers/option1/new_id

T:  Bus=01 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#=  4 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1c9e ProdID=9b01 Rev=02.32
S:  Manufacturer=USB Modem
S:  Product=USB Modem
S:  SerialNumber=
C:  #Ifs= 5 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I:  If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage

Now all important things are there:

wwp0s29f7u2i3 (net), ttyUSB2 (at), cdc-wdm0 (qmi), ttyUSB1 (at)

There is also ttyUSB0, but it is not usable, at least not for at.

The device works well with qmi and ModemManager-NetworkManager.
"

Reported-by: Thomas Schäfer <tschaefer@t-online.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-19 16:31:42 -08:00
Rafael J. Wysocki a3767e3c9d Merge branches 'acpi-smbus', 'acpi-ec' and 'acpi-pci'
* acpi-smbus:
  Revert "ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook"
  ACPI / SMBus: Fix boot stalls / high CPU caused by reentrant code

* acpi-ec:
  ACPI-EC: Drop unnecessary check made before calling acpi_ec_delete_query()

* acpi-pci:
  PCI: Fix OF logic in pci_dma_configure()
2015-11-20 01:22:52 +01:00
Rafael J. Wysocki 0aba0ab891 Merge branch 'pm-sleep'
* pm-sleep:
  PM / wakeirq: check that wake IRQ is valid before accepting it
2015-11-20 01:22:33 +01:00
Rafael J. Wysocki 9832bf3a35 Merge branches 'pm-cpufreq' and 'acpi-cppc'
* pm-cpufreq:
  Revert "Documentation: kernel_parameters for Intel P state driver"
  cpufreq: mediatek: fix build error
  cpufreq: intel_pstate: Add separate support for Airmont cores
  cpufreq: intel_pstate: Replace BYT with ATOM
  Revert "cpufreq: intel_pstate: Use ACPI perf configuration"
  Revert "cpufreq: intel_pstate: Avoid calculation for max/min"

* acpi-cppc:
  ACPI / CPPC: Use h/w reduced version of the PCCT structure
2015-11-20 01:22:10 +01:00
Suravee Suthikulpanit 768acd64d6 PCI: Fix OF logic in pci_dma_configure()
This patch fixes a bug introduced by previous commit,
which incorrectly checkes the of_node of the end-point device.
Instead, it should check the of_node of the host bridge.

Fixes: 50230713b6 ("PCI: OF: Move of_pci_dma_configure() to pci_dma_configure()")
Reported-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-11-20 01:20:36 +01:00
Dave Airlie 2d591ab18a Merge tag 'drm-intel-fixes-2015-11-19' of git://anongit.freedesktop.org/drm-intel into drm-fixes
i915 fixes for 4.4, including the revert for the backlight regression
Olof reported. Otherwise fixes all around.

* tag 'drm-intel-fixes-2015-11-19' of git://anongit.freedesktop.org/drm-intel:
  Revert "drm/i915: skip modeset if compatible for everyone."
  drm/i915: Consider SPLL as another shared pll, v2.
  drm/i915: Fix gpu frequency change tracing
  drm/i915: Don't clobber the addfb2 ioctl params
  drm/i915: Clear intel_crtc->atomic before updating it.
  drm/i915: get runtime PM reference around GEM set_caching IOCTL
  drm/i915: Fix GT frequency rounding
  drm/i915: quirk backlight present on Macbook 4, 1
  drm/i915: Fix crtc_y assignment in intel_find_initial_plane_obj()
2015-11-20 09:45:31 +10:00
Dave Airlie db3956372f Merge tag 'topic/drm-fixes-2015-11-19' of git://anongit.freedesktop.org/drm-intel into drm-fixes
Here are some drm core fixes for v4.4 that I've picked up. Atomic fixes
from Maarten, and atomic helper fixes from Ville and Daniel.

Admittedly the topmost commit didn't sit in our tree for very long, but
does come with reviews and testing from trustworthy people.

* tag 'topic/drm-fixes-2015-11-19' of git://anongit.freedesktop.org/drm-intel:
  drm/atomic-helper: Check encoder/crtc constraints
  drm: Fix primary plane size for stereo doubled modes for legacy setcrtc
  drm/core: Fix old_fb handling in pan_display_atomic.
  drm/core: Fix old_fb handling in restore_fbdev_mode_atomic.
  drm/atomic: add a drm_atomic_clean_old_fb helper.
  drm/core: Fix old_fb handling in drm_mode_atomic_ioctl.
  drm/core: Set legacy_cursor_update in drm_atomic_helper_disable_plane.
2015-11-20 09:44:50 +10:00
Greg Kroah-Hartman 0a72f2ad84 USB-serial fixes for v4.4-rc2
Here are some new device ids, support for an odd qcserial Gobi interface
 layout and a fix for the qcserial Huawei interface layout.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for v4.4-rc2

Here are some new device ids, support for an odd qcserial Gobi interface
layout and a fix for the qcserial Huawei interface layout.

Signed-off-by: Johan Hovold <johan@kernel.org>
2015-11-19 14:08:37 -08:00
Dan Williams 2e6edc9538 block: protect rw_page against device teardown
Fix use after free crashes like the following:

 general protection fault: 0000 [#1] SMP
 Call Trace:
  [<ffffffffa0050216>] ? pmem_do_bvec.isra.12+0xa6/0xf0 [nd_pmem]
  [<ffffffffa0050ba2>] pmem_rw_page+0x42/0x80 [nd_pmem]
  [<ffffffff8128fd90>] bdev_read_page+0x50/0x60
  [<ffffffff812972f0>] do_mpage_readpage+0x510/0x770
  [<ffffffff8128fd20>] ? I_BDEV+0x20/0x20
  [<ffffffff811d86dc>] ? lru_cache_add+0x1c/0x50
  [<ffffffff81297657>] mpage_readpages+0x107/0x170
  [<ffffffff8128fd20>] ? I_BDEV+0x20/0x20
  [<ffffffff8128fd20>] ? I_BDEV+0x20/0x20
  [<ffffffff8129058d>] blkdev_readpages+0x1d/0x20
  [<ffffffff811d615f>] __do_page_cache_readahead+0x28f/0x310
  [<ffffffff811d6039>] ? __do_page_cache_readahead+0x169/0x310
  [<ffffffff811c5abd>] ? pagecache_get_page+0x2d/0x1d0
  [<ffffffff811c76f6>] filemap_fault+0x396/0x530
  [<ffffffff811f816e>] __do_fault+0x4e/0xf0
  [<ffffffff811fce7d>] handle_mm_fault+0x11bd/0x1b50

Cc: <stable@vger.kernel.org>
Cc: Jens Axboe <axboe@fb.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Reported-by: kbuild test robot <lkp@intel.com>
Acked-by: Matthew Wilcox <willy@linux.intel.com>
[willy: symmetry fixups]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-11-19 13:47:10 -08:00
Linus Torvalds b4ba1f0f65 arm64 fixes:
- Fix size alignment in __iommu_{alloc,free}_attrs
 - Kernel memory mapping fix with CONFIG_DEBUG_RODATA for page sizes
   other than 4KB and a fix of the mark_rodata_ro permissions
 - dma_get_ops() simplification and behaviour alignment between DT and
   ACPI
 - function_graph trace fix for cpu_suspend() (CPUs returning from deep
   sleep via a different path and confusing the tracer)
 - Use of non-global mappings for UEFI run-time services to avoid a
   (potentially theoretical) TLB conflict
 - Crypto priority reduction of core AES cipher (the accelerated
   asynchronous implementation is preferred when available)
 - Reverting an old commit that removed BogoMIPS from /proc/cpuinfo on
   arm64. Apparently, we had it for a relatively short time and libvirt
   started checking for its presence
 - Compiler warnings fixed (ptrace.h inclusion from compat.h,
   smp_load_acquire with const argument)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Fix size alignment in __iommu_{alloc,free}_attrs

 - Kernel memory mapping fix with CONFIG_DEBUG_RODATA for page sizes
   other than 4KB and a fix of the mark_rodata_ro permissions

 - dma_get_ops() simplification and behaviour alignment between DT and
   ACPI

 - function_graph trace fix for cpu_suspend() (CPUs returning from deep
   sleep via a different path and confusing the tracer)

 - Use of non-global mappings for UEFI run-time services to avoid a
   (potentially theoretical) TLB conflict

 - Crypto priority reduction of core AES cipher (the accelerated
   asynchronous implementation is preferred when available)

 - Reverting an old commit that removed BogoMIPS from /proc/cpuinfo on
   arm64.  Apparently, we had it for a relatively short time and libvirt
   started checking for its presence

 - Compiler warnings fixed (ptrace.h inclusion from compat.h,
   smp_load_acquire with const argument)

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: restore bogomips information in /proc/cpuinfo
  arm64: barriers: fix smp_load_acquire to work with const arguments
  arm64: Fix R/O permissions in mark_rodata_ro
  arm64: crypto: reduce priority of core AES cipher
  arm64: use non-global mappings for UEFI runtime regions
  arm64: kernel: pause/unpause function graph tracer in cpu_suspend()
  arm64: do not include ptrace.h from compat.h
  arm64: simplify dma_get_ops
  arm64: mm: use correct mapping granularity under DEBUG_RODATA
  arm64/dma-mapping: Fix sizes in __iommu_{alloc,free}_attrs
2015-11-19 12:21:23 -08:00
Linus Torvalds a3d66b5a17 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull livepatching fix from Jiri Kosina:
 "A fix for module handling in case kASLR has been enabled, from Zhou
  Chengming"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
  livepatch: x86: fix relocation computation with kASLR
2015-11-19 12:16:12 -08:00
Linus Torvalds 319645cac2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
 "Two functional fixes for wacom HID driver from Ping Cheng and Jiri
  Kosina"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: wacom: fixup quirks setup for WACOM_DEVICETYPE_PAD
  HID: wacom: Add outbounding area for DTU1141
2015-11-19 12:10:51 -08:00
Linus Torvalds 1282ac407c MMC core:
- Improve reliability when selecting HS200 mode
  - Improve reliability when selecting HS400 mode
  - mmc: remove bondage between REQ_META and reliable write
 
 MMC host:
  - pxamci: Fix read-only gpio detection polarity
  - mtk-sd: Preinitialize delay_phase to fix the case when delay is zero
  - android-goldfish: Fix build dependency by adding HAS_DMA
  - dw_mmc: Remove Seungwon Jeon from MAINTAINERS
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Merge tag 'mmc-v4.4-rc1' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC fixes from Ulf Hansson:
 "Here are some mmc fixes intended for v4.4 rc2.  It's based on a commit
  prior rc1 as I wanted to get them a bit more tested in next before
  sending you the pull request.

  MMC core:
   - Improve reliability when selecting HS200 mode
   - Improve reliability when selecting HS400 mode
   - mmc: remove bondage between REQ_META and reliable write

  MMC host:
   - pxamci: Fix read-only gpio detection polarity
   - mtk-sd: Preinitialize delay_phase to fix the case when delay is zero
   - android-goldfish: Fix build dependency by adding HAS_DMA
   - dw_mmc: Remove Seungwon Jeon from MAINTAINERS"

* tag 'mmc-v4.4-rc1' of git://git.linaro.org/people/ulf.hansson/mmc:
  mmc: remove bondage between REQ_META and reliable write
  mmc: MMC_GOLDFISH should depend on HAS_DMA
  mmc: mediatek: Preinitialize delay_phase in get_best_delay()
  MAINTAINERS: mmc: Remove Seungwon Jeon from dw_mmc
  mmc: mmc: Improve reliability of mmc_select_hs400()
  mmc: mmc: Move mmc_switch_status()
  mmc: mmc: Fix HS setting in mmc_select_hs400()
  mmc: mmc: Improve reliability of mmc_select_hs200()
  mmc: pxamci: fix read-only gpio detection polarity
2015-11-19 11:33:58 -08:00
Yang Shi 92e788b749 arm64: restore bogomips information in /proc/cpuinfo
As previously reported, some userspace applications depend on bogomips
showed by /proc/cpuinfo. Although there is much less legacy impact on
aarch64 than arm, it does break libvirt.

This patch reverts commit 326b16db9f ("arm64: delay: don't bother
reporting bogomips in /proc/cpuinfo"), but with some tweak due to
context change and without the pr_info().

Fixes: 326b16db9f ("arm64: delay: don't bother reporting bogomips in /proc/cpuinfo")
Signed-off-by: Yang Shi <yang.shi@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org> # 3.12+
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2015-11-19 17:57:18 +00:00
Daniel Vetter 5481c8fb1d drm/atomic-helper: Check encoder/crtc constraints
This was totally lost when I originally created the atomic helpers.

We probably should also check possible_clones in the helpers, but
since the legacy ones didn't do that this is for a separate patch.

Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Stone <daniels@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1447868808-10266-1-git-send-email-daniel.vetter@ffwll.ch
2015-11-19 17:11:13 +02:00
Arnd Bergmann ca78946853 [media] davinci: add i2c Kconfig dependencies
All the davinci media drivers are using the i2c framework, and
fail to build if that is ever disabled, e.g.:

media/platform/davinci/vpif_display.c: In function 'vpif_probe':
media/platform/davinci/vpif_display.c:1298:14: error: implicit declaration of function 'i2c_get_adapter' [-Werror=implicit-function-declaration]

This adds explicit Kconfig dependencies so we don't see the
driver options if I2C is turned off.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 12:03:52 -02:00
Mauro Carvalho Chehab a733a41a50 [media] fix dvb_frontend_sleep_until() logic
As pointed by Laurent Navet:
	"Calling ktime_add_us() seems useless as is only useful
	 for it's return value which is ignored."

That's reported by coverity CID 1309761.

Laurent proposed to just remove ktime_add_us, but the fact is that
the logic of this function is broken. Instead, we need to use the
value of the timeout, and ensure that it will work on the loops
to emulate the legacy DiSEqC ioctl (FE_DISHNETWORK_SEND_LEGACY_CMD).

Please notice that the logic was also broken if, for any reason,
msleep() would sleep a little less than what it was expected, as
newdelta would be smaller than delta, and udelay() would not be called.

It should also be noticed that nobody noticed that trouble before
likely because the FE_DISHNETWORK_SEND_LEGACY_CMD is not used
anymore by modern DVB applications.

Reported-by: Laurent Navet <laurent.navet@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:57:08 -02:00
Heiner Kallweit 439be34800 [media] media: cx23885: fix type of allowed_protos
Protocol lists are represented as 64-bit bitmaps,
therefore use u64 instead of unsigned long.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:54:21 -02:00
Mauro Carvalho Chehab 850c8a7d68 smsir.h: remove a now duplicated definition (IR_DEFAULT_TIMEOUT)
This macro is now part of the core. Remove from Siano driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:41:36 -02:00
Heiner Kallweit c278504d2a [media] media: rc: improve RC_BIT_ constant definition
The RC_BIT_ constants are used in 64-bit bitmaps.
In case of > 32 RC_BIT_ constants the current code will fail
on 32-bit systems.
Therefore define the RC_BIT_ constants as unsigned long long.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:39:58 -02:00
Heiner Kallweit d80ca8bd71 [media] media: rc: move check whether a protocol is enabled to the core
Checking whether a protocol is enabled and calling the related decoder
functions should be done by the rc core, not the protocol handlers.

Properly handle lirc considering that no protocol bit is set for lirc.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:39:17 -02:00
Heiner Kallweit acc1c3c688 [media] media: rc: load decoder modules on-demand
Remove code for unconditional decoder module loading (except lirc).

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:38:41 -02:00
Heiner Kallweit 53df877717 [media] media: rc: constify struct proto_names
Declare struct proto_names and its member name as const.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:38:14 -02:00
Heiner Kallweit 9f0bf366d7 [media] media: rc: preparation for on-demand decoder module loading
Prepare on-demand decoder module loading by adding a module_name member
to struct proto_names and introducing the related load function.

After this patch of the series the decoder modules are still loaded
unconditionally.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:37:40 -02:00
Heiner Kallweit 93cffffc18 [media] media: rc: fix decoder module unloading
Currently, if a decoder module is unloadad, the respective protocol
is still shown as enabled (if it was enabled before).
Fix this by resetting the respective protocol bits if a decoder
module is unloaded.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:36:29 -02:00
Vladis Dronov fa52bd506f [media] usbvision: fix crash on detecting device with invalid configuration
The usbvision driver crashes when a specially crafted usb device with invalid
number of interfaces or endpoints is detected. This fix adds checks that the
device has proper configuration expected by the driver.

Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:36:02 -02:00
Arno Bauernöppel 1efc21701d [media] Add support for dvb usb stick Hauppauge WinTV-soloHD
This patch adds support for the DVB-T/C/T2 usb stick WinTV-soloHD from
Hauppauge. It adds the usb ID 2040:0264 Hauppauge to the cards of the
driver em28xx.

I successfully tested DVB-T/C and the IR remote control with the
firmware dvb-demod-si2168-b40-01.fw.

Signed-off-by: Arno Bauernoeppel <arno@aziraphale.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:34:32 -02:00
Alexey Khoroshilov b833d0df94 [media] lirc_imon: do not leave imon_probe() with mutex held
Commit af8a819a25 ("[media] lirc_imon: simplify error handling code")
lost mutex_unlock(&context->ctx_lock), so imon_probe() exits with
the context->ctx_lock mutex acquired.

The patch adds mutex_unlock(&context->ctx_lock) back.

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: af8a819a25 ("[media] lirc_imon: simplify error handling code")

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:29:28 -02:00
Matthias Schwarzott 18349f4009 [media] si2165: fix checkpatch issues
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:23:42 -02:00
Matthias Schwarzott 599bedb7d1 [media] cx231xx_dvb: use demod_i2c for demod attach
Tested:
* CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx
* CX231XX_BOARD_HAUPPAUGE_930C_HD_1114xx

Not Tested:
* CX231XX_BOARD_HAUPPAUGE_EXETER
* CX231XX_BOARD_HAUPPAUGE_955Q

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:23:06 -02:00
Julia Lawall 9bca62661e [media] ttusb-dec: constify ttusbdecfe_config structure
The ttusbdecfe_config structure is never modified, so declare it
as const.

Other references to this structure type were already declared as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:22:15 -02:00
Julia Lawall 9c5e44a076 [media] drivers/media/usb/dvb-usb-v2: constify mxl111sf_demod_config structure
The mxl111sf_demod_config structure is never modified, so declare it
as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:20:18 -02:00
Walter Cheuk c0a182b699 [media] tv tuner max2165 driver: extend frequency range
Extend the frequency range to cover Hong Kong's digital TV broadcasting;
RTHK TV uses 802MHz and is not covered now. Tested on my TV tuner card
"MyGica X8558 Pro".

Signed-off-by: Walter Cheuk <wwycheuk@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:19:42 -02:00
Laurent Pinchart b446631c5a [media] v4l: omap_vout: Don't free buffers if they haven't been allocated
The VRFB buffers are freed when the device is closed even if they
haven't been allocated by a call to VIDIOC_REQBUFS, resulting in a
crash. Fix it by not trying to free buffers that are not allocated.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:15:20 -02:00
Laurent Pinchart cd1e11bed2 [media] media: omap4iss: Make module stop timeout print a warning message
Module stop timeouts are serious enough that they deserve a proper
warning message, not a debug message that will go unnoticed.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:14:51 -02:00