Commit Graph

80 Commits

Author SHA1 Message Date
Linus Torvalds 2e368dd2bb ARM: SoC-related driver updates
Various driver updates for platforms. A bulk of this is smaller fixes or
 cleanups, but some of the new material this time around is:
 
  - Support for Nvidia Tegra234 SoC
  - Ring accelerator support for TI AM65x
  - PRUSS driver for TI platforms
  - Renesas support for R-Car V3U SoC
  - Reset support for Cortex-M4 processor on i.MX8MQ
 
 There are also new socinfo entries for a handful of different SoCs
 and platforms.
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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. A bulk of this is smaller fixes
  or cleanups, but some of the new material this time around is:

   - Support for Nvidia Tegra234 SoC

   - Ring accelerator support for TI AM65x

   - PRUSS driver for TI platforms

   - Renesas support for R-Car V3U SoC

   - Reset support for Cortex-M4 processor on i.MX8MQ

  There are also new socinfo entries for a handful of different SoCs and
  platforms"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (131 commits)
  drm/mediatek: reduce clear event
  soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api
  soc: mediatek: cmdq: add jump function
  soc: mediatek: cmdq: add write_s_mask value function
  soc: mediatek: cmdq: add write_s value function
  soc: mediatek: cmdq: add read_s function
  soc: mediatek: cmdq: add write_s_mask function
  soc: mediatek: cmdq: add write_s function
  soc: mediatek: cmdq: add address shift in jump
  soc: mediatek: mtk-infracfg: Fix kerneldoc
  soc: amlogic: pm-domains: use always-on flag
  reset: sti: reset-syscfg: fix struct description warnings
  reset: imx7: add the cm4 reset for i.MX8MQ
  dt-bindings: reset: imx8mq: add m4 reset
  reset: Fix and extend kerneldoc
  reset: reset-zynqmp: Added support for Versal platform
  dt-bindings: reset: Updated binding for Versal reset driver
  reset: imx7: Support module build
  soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk
  soc: fsl: qman: convert to use be32_add_cpu()
  ...
2020-10-24 10:39:22 -07:00
YueHaibing 6cf238d4e2 memory: omap-gpmc: Fix -Wunused-function warnings
If CONFIG_OF is not set, make W=1 warns:

  drivers/memory/omap-gpmc.c:987:12: warning: ‘gpmc_cs_remap’ defined but not used [-Wunused-function]
  drivers/memory/omap-gpmc.c:926:20: warning: ‘gpmc_cs_get_name’ defined but not used [-Wunused-function]
  drivers/memory/omap-gpmc.c:919:13: warning: ‘gpmc_cs_set_name’ defined but not used [-Wunused-function]

Move them to #ifdef CONFIG_OF block to fix this.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20200901112832.3084-1-yuehaibing%40huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-09-02 17:29:11 +02:00
YueHaibing 13d029ee51 memory: omap-gpmc: Fix build error without CONFIG_OF
If CONFIG_OF is n, gcc fails:

drivers/memory/omap-gpmc.o: In function `gpmc_omap_onenand_set_timings':
    omap-gpmc.c:(.text+0x2a88): undefined reference to `gpmc_read_settings_dt'

Add gpmc_read_settings_dt() helper function, which zero the gpmc_settings
so the caller doesn't proceed with random/invalid settings.

Fixes: a758f50f10 ("mtd: onenand: omap2: Configure driver from DT")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20200827125316.20780-1-yuehaibing@huawei.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-27 21:30:48 +02:00
Dan Carpenter 4c54228ac8 memory: omap-gpmc: Fix a couple off by ones
These comparisons should be >= instead of > to prevent reading one
element beyond the end of the gpmc_cs[] array.

Fixes: cdd6928c58 ("ARM: OMAP2+: Add device-tree support for NOR flash")
Fixes: f37e4580c4 ("ARM: OMAP2: Dynamic allocator for GPMC memory space")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20200825104707.GB278587@mwanda
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-26 20:22:12 +02:00
Gustavo A. R. Silva df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Krzysztof Kozlowski dc1a9283f1 memory: omap-gpmc: consistently use !res for NULL checks
The driver already uses 'if (!res)' pattern in the probe function so be
consistent.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724182328.3348-11-krzk@kernel.org
2020-08-17 20:43:46 +02:00
Krzysztof Kozlowski 07b6cc4540 memory: omap-gpmc: use WARN() instead of BUG() on wrong free
Since driver tracks reserved memory, freeing a non-reserved GPMC should
not be fatal and crash the system.  Printing a warning is friendlier.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724182328.3348-9-krzk@kernel.org
2020-08-17 20:43:41 +02:00
Krzysztof Kozlowski 1724f1b696 memory: omap-gpmc: remove GPMC_SET_ONE_CD_MAX macro for safety
The GPMC_SET_ONE_CD_MAX macro uses return statement and variable 'cs'
coming from called scope.  This is not a good practice.  Also
checkpatch complained:

    WARNING: Macros with flow control statements should be avoided
    ERROR: Macros starting with if should be enclosed by a do - while
        loop to avoid possible if/else logic defects

Since GPMC_SET_ONE_CD_MAX macro just calls one function, it can be open
coded.  The difference with original code is that function will exit on
error not after every register set, but after a group of sets.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-22-krzk@kernel.org
2020-08-17 20:43:38 +02:00
Krzysztof Kozlowski d25112aa34 memory: omap-gpmc: return meaningful error codes in gpmc_cs_set_timings()
The callers of gpmc_cs_set_timings() expect to receive -ERRNO on errors
and they pass further what they have received.

However gpmc_cs_set_timings() was returning -1 (equal to -EPERM) which
does not make sense in this context.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-21-krzk@kernel.org
2020-08-17 20:43:35 +02:00
Krzysztof Kozlowski ddbfbcba49 memory: omap-gpmc: remove unused file-scope phys_base and mem_size
The file-scope variables phys_base and mem_size are assigned in
gpmc_probe() but never read.

This fixes build error when compile testing on x86_64 architecture:

    drivers/memory/omap-gpmc.c:246:24: error: conflicting types for ‘phys_base’
     static resource_size_t phys_base, mem_size;
    In file included from arch/x86/include/asm/page.h:12:0,
                     from arch/x86/include/asm/thread_info.h:12,
                     from include/linux/thread_info.h:38,
                     from arch/x86/include/asm/preempt.h:7,
                     from include/linux/preempt.h:78,
                     from include/linux/spinlock.h:51,
                     from include/linux/irq.h:14,
                     from drivers/memory/omap-gpmc.c:12:
    arch/x86/include/asm/page_64.h:12:22: note: previous declaration of ‘phys_base’ was here
     extern unsigned long phys_base;

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-3-krzk@kernel.org
2020-08-17 20:43:32 +02:00
Krzysztof Kozlowski 8e9ffd5ed3 memory: omap-gpmc: remove unneeded asm/mach-types.h inclusion
The driver does not use macros from asm/mach-types.h (neither MACH_TYPE
nor machine_is_xxx()).  Removal of this include allows compile testing
on non-ARM architectures which lack this header.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200724074038.5597-2-krzk@kernel.org
2020-08-17 20:43:29 +02:00
Krzysztof Kozlowski 858432c7e4 memory: omap-gpmc: Fix language typo
Fix arbitary -> arbitrary.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-27 11:13:33 +02:00
Krzysztof Kozlowski cdd1aeae83 memory: omap-gpmc: Correct white space issues
Remove some unneeded blank lines, align indentation with open
parenthesis (or fix existing alignment).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-27 11:13:33 +02:00
Krzysztof Kozlowski 1cd534584a memory: omap-gpmc: Use 'unsigned int' for consistency
Driver uses 'unsigned int' in other places instead of 'unsigned'.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-27 11:13:33 +02:00
Krzysztof Kozlowski 98397f1ccc memory: omap-gpmc: Enclose macro argument usage in parenthesis
Macros arguments should be enclosed by parenthesis for safety.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-27 11:13:33 +02:00
Krzysztof Kozlowski 80c4f5a824 memory: omap-gpmc: Correct kerneldoc
Use proper kerneldoc to fix GCC warnings like:

    drivers/memory/omap-gpmc.c:299: warning: Function parameter or member 'cs' not described in 'gpmc_get_clk_period'
    drivers/memory/omap-gpmc.c:432: warning: Excess function parameter 'ma' description in 'get_gpmc_timing_reg'

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-27 11:13:33 +02:00
Krzysztof Kozlowski 1a1e7580e7 memory: omap-gpmc: Fix whitespace issue
Fix minor whitespace and comment issues.  No functional changes.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24 16:18:32 +02:00
Krzysztof Kozlowski 07852c3f7f memory: omap-gpmc: Include <linux/sizes.h> for SZ_16M
The driver uses SZ_16M which is defined in include/linux/sizes.h.  On
ARM it was pulled by other headers but its inclusion is necessary for
compile testing on other architectures.

This fixes build error when compile testing on i386 architecture:

    drivers/memory/omap-gpmc.c: In function ‘gpmc_cs_remap’:
    drivers/memory/omap-gpmc.c:961:12: error: ‘SZ_16M’ undeclared (first use in this function)

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-24 16:18:32 +02:00
Linus Torvalds 2ec98f5678 Bulk GPIO changes for the v5.3 kernel cycle:
Core:
 
 - When a gpio_chip request GPIOs from itself, it can now fully
   control the line characteristics, both machine and consumer
   flags. This makes a lot of sense, but took some time before I
   figured out that this is how it has to work.
 
 - Several smallish documentation fixes.
 
 New drivers:
 
 - The PCA953x driver now supports the TI TCA9539.
 
 - The DaVinci driver now supports the K3 AM654 SoCs.
 
 Driver improvements:
 
 - Major overhaul and hardening of the OMAP driver by Russell
   King.
 
 - Starting to move some drivers to the new API passing irq_chip
   along with the gpio_chip when adding the gpio_chip instead
   of adding it separately.
 
 Unrelated:
 
 - Delete the FMC subsystem.
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Merge tag 'gpio-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the big slew of GPIO changes for the v5.3 kernel cycle. This
  is mostly incremental work this time.

  Three important things:

   - The FMC subsystem is deleted through my tree. This happens through
     GPIO as its demise was discussed in relation to a patch decoupling
     its GPIO implementation from the standard way of handling GPIO. As
     it turns out, that is not the only subsystem it reimplements and
     the authors think it is better do scratch it and start over using
     the proper kernel subsystems than try to polish the rust shiny. See
     the commit (ACKed by the maintainers) for details.

   - Arnd made a small devres patch that was ACKed by Greg and goes into
     the device core.

   - SPDX header change colissions may happen, because at times I've
     seen that quite a lot changed during the -rc:s in regards to SPDX.
     (It is good stuff, tglx has me convinced, and it is worth the
     occasional pain.)

  Apart from this is is nothing controversial or problematic.

  Summary:

  Core:

   - When a gpio_chip request GPIOs from itself, it can now fully
     control the line characteristics, both machine and consumer flags.
     This makes a lot of sense, but took some time before I figured out
     that this is how it has to work.

   - Several smallish documentation fixes.

  New drivers:

   - The PCA953x driver now supports the TI TCA9539.

   - The DaVinci driver now supports the K3 AM654 SoCs.

  Driver improvements:

   - Major overhaul and hardening of the OMAP driver by Russell King.

   - Starting to move some drivers to the new API passing irq_chip along
     with the gpio_chip when adding the gpio_chip instead of adding it
     separately.

  Unrelated:

   - Delete the FMC subsystem"

* tag 'gpio-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (87 commits)
  Revert "gpio: tegra: Clean-up debugfs initialisation"
  gpiolib: Use spinlock_t instead of struct spinlock
  gpio: stp-xway: allow compile-testing
  gpio: stp-xway: get rid of the #include <lantiq_soc.h> dependency
  gpio: stp-xway: improve module clock error handling
  gpio: stp-xway: simplify error handling in xway_stp_probe()
  gpiolib: Clarify use of non-sleeping functions
  gpiolib: Fix references to gpiod_[gs]et_*value_cansleep() variants
  gpiolib: Document new gpio_chip.init_valid_mask field
  Documentation: gpio: Fix reference to gpiod_get_array()
  gpio: pl061: drop duplicate printing of device name
  gpio: altera: Pass irqchip when adding gpiochip
  gpio: siox: Use devm_ managed gpiochip
  gpio: siox: Add struct device *dev helper variable
  gpio: siox: Pass irqchip when adding gpiochip
  drivers: gpio: amd-fch: make resource struct const
  devres: allow const resource arguments
  gpio: ath79: Pass irqchip when adding gpiochip
  gpio: tegra: Clean-up debugfs initialisation
  gpio: siox: Switch to IRQ_TYPE_NONE
  ...
2019-07-09 09:07:00 -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
Linus Walleij 5923ea6c2c gpio: pass lookup and descriptor flags to request_own
When a gpio_chip wants to request a descriptor from itself
using gpiochip_request_own_desc() it needs to be able to specify
fully how to use the descriptor, notably line inversion
semantics. The workaround in the gpiolib.c can be removed
and cases (such as SPI CS) where we need at times to request
a GPIO with line inversion semantics directly on a chip for
workarounds, can be fully supported with this call.

Fix up some users of the API that weren't really using the
last flag to set up the line as input or output properly
but instead just calling direction setting explicitly
after requesting the line.

Cc: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-06-07 23:20:23 +02:00
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
Linus Torvalds 030672aea8 Merge tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree updates from Rob Herring:
 "The biggest highlight here is the start of using json-schema for DT
  bindings. Being able to validate bindings has been discussed for years
  with little progress.

   - Initial support for DT bindings using json-schema language. This is
     the start of converting DT bindings from free-form text to a
     structured format.

   - Reworking of initrd address initialization. This moves to using the
     phys address instead of virt addr in the DT parsing code. This
     rework was motivated by CONFIG_DEV_BLK_INITRD causing unnecessary
     rebuilding of lots of files.

   - Fix stale phandle entries in phandle cache

   - DT overlay validation improvements. This exposed several memory
     leak bugs which have been fixed.

   - Use node name and device_type helper functions in DT code

   - Last remaining conversions to using %pOFn printk specifier instead
     of device_node.name directly

   - Create new common RTC binding doc and move all trivial RTC devices
     out of trivial-devices.txt.

   - New bindings for Freescale MAG3110 magnetometer, Cadence Sierra
     PHY, and Xen shared memory

   - Update dtc to upstream version v1.4.7-57-gf267e674d145"

* tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (68 commits)
  of: __of_detach_node() - remove node from phandle cache
  of: of_node_get()/of_node_put() nodes held in phandle cache
  gpio-omap.txt: add reg and interrupts properties
  dt-bindings: mrvl,intc: fix a trivial typo
  dt-bindings: iio: magnetometer: add dt-bindings for freescale mag3110
  dt-bindings: Convert trivial-devices.txt to json-schema
  dt-bindings: arm: mrvl: amend Browstone compatible string
  dt-bindings: arm: Convert Tegra board/soc bindings to json-schema
  dt-bindings: arm: Convert ZTE board/soc bindings to json-schema
  dt-bindings: arm: Add missing Xilinx boards
  dt-bindings: arm: Convert Xilinx board/soc bindings to json-schema
  dt-bindings: arm: Convert VIA board/soc bindings to json-schema
  dt-bindings: arm: Convert ST STi board/soc bindings to json-schema
  dt-bindings: arm: Convert SPEAr board/soc bindings to json-schema
  dt-bindings: arm: Convert CSR SiRF board/soc bindings to json-schema
  dt-bindings: arm: Convert QCom board/soc bindings to json-schema
  dt-bindings: arm: Convert TI nspire board/soc bindings to json-schema
  dt-bindings: arm: Convert TI davinci board/soc bindings to json-schema
  dt-bindings: arm: Convert Calxeda board/soc bindings to json-schema
  dt-bindings: arm: Convert Altera board/soc bindings to json-schema
  ...
2018-12-28 20:08:34 -08:00
Linus Walleij a0752e9c30 memory: omap-gpmc: Get the header of the enum
Commit 21abf10381
("gpio: Pass a flag to gpiochip_request_own_desc()")
started to pass an enum gpiod_flags but this file is
not including the header file that defines that enum
and the compiler spits:

drivers/memory/omap-gpmc.c: In function
			    'gpmc_probe_generic_child':
drivers/memory/omap-gpmc.c:2174:9: error: type of formal
				   parameter 4 is incomplete
         0);
         ^

Cc: Ladislav Michl <ladis@linux-mips.org>
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 21abf10381 ("gpio: Pass a flag to gpiochip_request_own_desc()")
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-12-17 23:06:16 +01:00
Linus Walleij 21abf10381 gpio: Pass a flag to gpiochip_request_own_desc()
Before things go out of hand, make it possible to pass
flags when requesting "own" descriptors from a gpio_chip.
This is necessary if the chip wants to request a GPIO with
active low semantics, for example.

Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Roger Quadros <rogerq@ti.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-12-14 14:24:33 +01:00
Rob Herring c2ade654db memory: omap-gpmc: Use of_node_name_eq for node name comparisons
Convert string compares of DT node names to use of_node_name_eq helper
instead. This removes direct access to the node name pointer.

For instances using of_node_cmp, this has the side effect of now using
case sensitive comparisons. This should not matter for any FDT based
system which this is.

Cc: Roger Quadros <rogerq@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-12-11 08:30:29 -08:00
Rob Herring c86f98544f memory: Convert to using %pOFn instead of device_node.name
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Roger Quadros <rogerq@ti.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2018-11-27 10:54:39 -06:00
Roger Quadros d507178f2e memory: omap-gpmc: Avoid redundant NULL check
child->name cannot be NULL as we're already checking for it
in gpmc_probe_dt_children()

Signed-off-by: Roger Quadros <rogerq@ti.com>
2018-04-24 10:30:52 +03:00
Ladislav Michl a758f50f10 mtd: onenand: omap2: Configure driver from DT
Move away from platform data configuration and use pure DT approach.

Use generic probe function to deal with OneNAND node and remove now useless
gpmc_probe_onenand_child function. Import sync mode timing calculation
function from mach-omap2/gpmc-onenand.c

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-12 16:41:15 +01:00
Ladislav Michl c18a7ac339 memory: omap-gpmc: Make 'bank-width' property optional
Error out only if both 'bank-width' and 'gpmc,device-width' are missing.
As 'bank-width' is mostly used for NOR devices and all other devices must
use 'gpmc,device-width' update the error message accordingly.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
2017-12-01 15:37:49 +02:00
Ladislav Michl a622c64166 memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg()
Deprecated gpmc_update_nand_reg() is no longer used, remove.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
2017-11-03 15:06:11 +02:00
Ladislav Michl 0d96a4f6a0 memory: omap-gpmc: Drop gpmc_status
This field is no longer used, drop it.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
2017-10-17 14:46:37 +03:00
Rob Herring db749d17cb memory: Convert to using %pOF instead of full_name
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-08-16 21:37:00 +02:00
Olof Johansson cd8eb6291d Few improvments for GPMC (General Purpose Memory Controller)
found on TI SoCs to produce an error for missing bank-width
 and to make the bootloader timing debug output usable for
 device tree timings.
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Merge tag 'omap-for-v4.13/gpmc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers

Few improvments for GPMC (General Purpose Memory Controller)
found on TI SoCs to produce an error for missing bank-width
and to make the bootloader timing debug output usable for
device tree timings.

* tag 'omap-for-v4.13/gpmc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  memory: omap-gpmc: add error message if bank-width property is absent
  memory: omap-gpmc: make dts snippet include semicolon

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-18 18:55:59 -07:00
Uwe Kleine-König c9eabf40d9 memory: omap-gpmc: add error message if bank-width property is absent
Instead of failing silently log a hint for the dt author about the
reason of the failure.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-31 10:08:10 -07:00
Uwe Kleine-König 95c278b243 memory: omap-gpmc: make dts snippet include semicolon
In the device tree each property must be terminated with a semicolon, so
include them in the output for easier cut-n-paste.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-31 10:07:08 -07:00
Tony Lindgren aff523fb82 memory: omap-gpmc: Fix debug output for access width
The width needs to be configured in bytes with 1 meaning 8-bit
access and 2 meaning 16-bit access.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-16 08:12:47 -07:00
Ladislav Michl 7807e086a2 ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure
gpmc_probe_onenand_child returns success even on gpmc_onenand_init
failure. Fix that.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-02-28 09:06:23 -08:00
Arnd Bergmann 9064a1c77d Merge commit 'http://github.com/rogerq/linux gpmc-omap-v4.8-rc1' into next/drivers
This is also going to be part of v4.8 and sent as a bugfix,
merging it here to avoid a small conflict against the other
gpmc changes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-09-03 00:52:11 +02:00
Baoyou Xie 3950fffdf0 memory: omap-gpmc: make gpmc_clk_ticks_to_ns() static
We get 1 warning when build kernel with W=1:
drivers/memory/omap-gpmc.c:354:14: warning: no previous prototype for 'gpmc_clk_ticks_to_ns' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is declared
and don't need a declaration, but can be made static.
so this patch marks it 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
2016-08-29 11:00:24 +03:00
Linus Walleij 525fe43f55 memory: omap-gpmc: use devm_gpiochip_add_data()
This saves a few codelines in the driver.

Cc: Roger Quadros <rogerq@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
2016-08-29 11:00:23 +03:00
Markus Elfring 3f41a3c467 memory: omap-gpmc: Delete an unnecessary check before the function call "gpiochip_free_own_desc"
The gpiochip_free_own_desc() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Roger Quadros <rogerq@ti.com>
2016-08-29 11:00:22 +03:00
Johan Hovold 23540d6e2f memory: omap-gpmc: allow probe of child nodes to fail
A recent commit (inadvertently?) changed how failed probe of a gpmc
child node was handled. Instead of proceeding with setting up any other
children as before, a single error now aborts the whole process.

This change broke networking on some Overo boards due to probe failing
for an unrelated nand node. This second issue should obviously be
fixed, but let's restore the old behaviour of allowing child-node
probe to fail to avoid further similar breakage on other systems.

Fixes: d2d00862df ("memory: omap-gpmc: Support general purpose input
for WAITPINs")

Cc: stable@vger.kernel.org  # v4.7+
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
2016-08-08 11:18:40 +03:00
Linus Torvalds 43a0a98aa8 ARM: SoC driver updates for v4.8
Driver updates for ARM SoCs.
 
 A slew of changes this release cycle. The reset driver tree, that we merge
 through arm-soc for historical reasons, is also sizable this time around.
 
 Among the changes:
 
  - clps711x: Treewide changes to compatible strings, merged here for simplicity.
  - Qualcomm: SCM firmware driver cleanups, move to platform driver
  - ux500: Major cleanups, removal of old mach-specific infrastructure.
  - Atmel external bus memory driver
  - Move of brcmstb platform to the rest of bcm
  - PMC driver updates for tegra, various fixes and improvements
  - Samsung platform driver updates to support 64-bit Exynos platforms
  - Reset controller cleanups moving to devm_reset_controller_register() APIs
  - Reset controller driver for Amlogic Meson
  - Reset controller driver for Hisilicon hi6220
  - ARM SCPI power domain support
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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:
 "Driver updates for ARM SoCs.

  A slew of changes this release cycle.  The reset driver tree, that we
  merge through arm-soc for historical reasons, is also sizable this
  time around.

  Among the changes:

   - clps711x: Treewide changes to compatible strings, merged here for simplicity.
   - Qualcomm: SCM firmware driver cleanups, move to platform driver
   - ux500: Major cleanups, removal of old mach-specific infrastructure.
   - Atmel external bus memory driver
   - Move of brcmstb platform to the rest of bcm
   - PMC driver updates for tegra, various fixes and improvements
   - Samsung platform driver updates to support 64-bit Exynos platforms
   - Reset controller cleanups moving to devm_reset_controller_register() APIs
   - Reset controller driver for Amlogic Meson
   - Reset controller driver for Hisilicon hi6220
   - ARM SCPI power domain support"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits)
  ARM: ux500: consolidate base platform files
  ARM: ux500: move soc_id driver to drivers/soc
  ARM: ux500: call ux500_setup_id later
  ARM: ux500: consolidate soc_device code in id.c
  ARM: ux500: remove cpu_is_u* helpers
  ARM: ux500: use CLK_OF_DECLARE()
  ARM: ux500: move l2x0 init to .init_irq
  mfd: db8500 stop passing around platform data
  ASoC: ab8500-codec: remove platform data based probe
  ARM: ux500: move ab8500_regulator_plat_data into driver
  ARM: ux500: remove unused regulator data
  soc: raspberrypi-power: add CONFIG_OF dependency
  firmware: scpi: add CONFIG_OF dependency
  video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
  input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip
  pwm: clps711x: Changing the compatibility string to match with the smallest supported chip
  serial: clps711x: Changing the compatibility string to match with the smallest supported chip
  irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip
  clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip
  clk: clps711x: Changing the compatibility string to match with the smallest supported chip
  ...
2016-08-01 18:36:01 -04:00
Linus Torvalds f64d6e2aaa DeviceTree update for 4.8:
- Removal of most of_platform_populate() calls in arch code. Now the DT
 core code calls it in the default case and platforms only need to call
 it if they have special needs.
 
 - Use pr_fmt on all the DT core print statements.
 
 - CoreSight binding doc improvements to block name descriptions.
 
 - Add dt_to_config script which can parse dts files and list
 corresponding kernel config options.
 
 - Fix memory leak hit with a PowerMac DT.
 
 - Correct a bunch of STMicro compatible strings to use the correct
 vendor prefix.
 
 - Fix DA9052 PMIC binding doc to match what is actually used in dts
 files.
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Merge tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - remove most of_platform_populate() calls in arch code.  Now the DT
   core code calls it in the default case and platforms only need to
   call it if they have special needs

 - use pr_fmt on all the DT core print statements

 - CoreSight binding doc improvements to block name descriptions

 - add dt_to_config script which can parse dts files and list
   corresponding kernel config options

 - fix memory leak hit with a PowerMac DT

 - correct a bunch of STMicro compatible strings to use the correct
   vendor prefix

 - fix DA9052 PMIC binding doc to match what is actually used in dts
   files

* tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits)
  documentation: da9052: Update regulator bindings names to match DA9052/53 DTS expectations
  xtensa: Partially Revert "xtensa: Remove unnecessary of_platform_populate with default match table"
  xtensa: Fix build error due to missing include file
  MIPS: ath79: Add missing include file
  Fix spelling errors in Documentation/devicetree
  ARM: dts: fix STMicroelectronics compatible strings
  powerpc/dts: fix STMicroelectronics compatible strings
  Documentation: dt: i2c: use correct STMicroelectronics vendor prefix
  scripts/dtc: dt_to_config - kernel config options for a devicetree
  of: fdt: mark unflattened tree as detached
  of: overlay: add resolver error prints
  coresight: document binding acronyms
  Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties
  of: use pr_fmt prefix for all console printing
  of/irq: Mark initialised interrupt controllers as populated
  of: fix memory leak related to safe_name()
  Revert "of/platform: export of_default_bus_match_table"
  of: unittest: use of_platform_default_populate() to populate default bus
  memory: omap-gpmc: use of_platform_default_populate() to populate default bus
  bus: uniphier-system-bus: use of_platform_default_populate() to populate default bus
  ...
2016-07-30 11:32:01 -07:00
Kefeng Wang 9f2c519c9f memory: omap-gpmc: use of_platform_default_populate() to populate default bus
Use helper of_platform_default_populate() in linux/of_platform
when possible, instead of calling of_platform_populate() with
the default match table.

Acked-by: Roger Quadros <rogerq@ti.com>
Cc: Roger Quadros <rogerq@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-06-23 15:00:55 -05:00
Roger Quadros 32dd625a9f memory: omap-gpmc: Move gpio functions out of #ifdef CONFIG_OF
The gpio related functions were mistakenly built only if CONFIG_OF
is defined. They are needed even otherwise and will cause build
failures if CONFIG_OF is not defined. Move the gpio functions
outside #ifdef CONFIG_OF.

Fixes: d2d00862df ("memory: omap-gpmc: Support general purpose input for WAITPINs")

Signed-off-by: Roger Quadros <rogerq@ti.com>
2016-06-17 10:26:48 +03:00
Paul Gortmaker caf21c61a1 memory: omap-gpmc: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/memory/Kconfig:config OMAP_GPMC
drivers/memory/Kconfig:  bool

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Since module_init was not in use by this code, the init ordering
remains unchanged with this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We don't replace module.h with init.h since the file already has that.

Cc: Roger Quadros <rogerq@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2016-06-17 10:11:54 +03:00
Ocquidant, Sebastien 8f50b8e574 memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
In the omap gpmc driver it can be noticed that GPMC_CONFIG4_OEEXTRADELAY
is overwritten by the WEEXTRADELAY value from the device tree and
GPMC_CONFIG4_WEEXTRADELAY is not updated by the value from the device
tree.

As a consequence, the memory accesses cannot be configured properly when
the extra delay are needed for OE and WE.

Fix the update of GPMC_CONFIG4_WEEXTRADELAY with the value from the
device tree file and prevents GPMC_CONFIG4_OEXTRADELAY
being overwritten by the WEXTRADELAY value from the device tree.

Cc: stable@vger.kernel.org
Signed-off-by: Ocquidant, Sebastien <sebastienocquidant@eaton.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
2016-06-16 11:43:48 +03:00
Boris Brezillon f679888f29 mtd: nand: omap2: rely on generic DT parsing done in nand_scan_ident()
The core now takes care of parsing generic DT properties in
nand_scan_ident() when nand_set_flash_node() has been called.
Rely on this initialization instead of calling of_get_nand_xxx()
manually.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Franklin S Cooper Jr. <fcooper@ti.com>
2016-04-19 22:04:54 +02:00