linux-toradex.git/drivers/gpio/gpio-rcar.c, branch v3.12.34

gpio: rcar: NULL dereference on error in probe()

2013-12-04T19:05:12+00:00

commit 0c8aab8e65e450f2bfea494c1b6a86ded653f88c upstream.

It's not obvious from the label name but "err1" tries to release
"p->irq_domain" which leads to a NULL dereference.

Fixes: 119f5e448d32 ('gpio: Renesas R-Car GPIO driver V3')

Signed-off-by: Dan Carpenter 
Acked-by: Magnus Damm 
Signed-off-by: Linus Walleij 
Signed-off-by: Greg Kroah-Hartman

gpio: rcar: Remove #gpio-range-cells DT property usage

2013-09-22T12:28:11+00:00

Commit a1bc260bb5f5d95da854be7898202d788e94448d ("gpio: clean up
gpio-ranges documentation") deprecated the #gpio-range-cells property.
Replace its usage with a hardcoded value in the gpio-rcar driver.

Signed-off-by: Laurent Pinchart 
Acked-by: Linus Walleij 
Signed-off-by: Simon Horman

gpio: use dev_get_platdata()

2013-08-16T13:24:35+00:00

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han 
Signed-off-by: Linus Walleij

Merge tag 'gpio-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2013-07-03T18:39:44+00:00

Pull GPIO updates from Linus Walleij:
 "Here is a batch of GPIO changes for v3.11.  I have agreed with Grant
  to take care of the pull requests for this development cycle.

  No special things are happening in the GPIO tree this time (nice with
  some calm) and I have been extra careful to do regression builds and
  it's well boiled in -next.

  GPIO changes for the v3.11 development cycle:
   - Incremental development for the Langwell (Atom SoC), Xilinx, ICH
     and RCAR drivers.
   - Cleanups from Jingoo Han, Axel Lin, Wei Jongjun, Wolfram Sang,
     Tushar Behera, Sachin Kamat and Yijing Wang"

* tag 'gpio-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (35 commits)
  Gpio/trivial: replace numeric with standard PM state macros
  gpiolib: remove warnning of allocations with IRQs disabled
  gpio: grgpio: Staticize local symbols
  gpio-langwell: remove Withney point support
  gpio: ich: add GPO_BLINK support
  gpio-sta2x11: Convert to use devm_ioremap_resource
  gpio_msm: Convert to use devm_ioremap_resource
  gpio-rcar: Use OUTDT when reading GPIOs configured as output
  gpio-sta2x11: Fix potential NULL pointer dereference
  gpio/omap: omap_gpio_init_context stub must be inline
  gpio: msm-v1: Remove errant __devinit to fix compile
  gpio: devres: make comments proper
  GPIO: xilinx: Enable driver for Xilinx zynq
  DT: Add documentation for gpio-xilinx
  GPIO: xilinx: Use BIT macro
  GPIO: xilinx: Use __raw_readl/__raw_writel IO functions
  GPIO: xilinx: Add support for dual channel
  GPIO: xilinx: Simplify driver probe function
  gpio: sx150x: convert to use devm_* functions
  MAINTAINERS: add linux-gpio mailing list
  ...

Merge tag 'renesas-gpio-rcar2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers

2013-06-21T13:15:57+00:00

From Simon Horman:

Second Round of Renesas ARM based SoC GPIO R-Car updates for v3.11

Documentation enhancement and code cleanup by Laurent Pinchart.

* tag 'renesas-gpio-rcar2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  gpio-rcar: Remove #ifdef CONFIG_OF around OF-specific sections
  gpio-rcar: Reference core gpio documentation in the DT bindings

Signed-off-by: Arnd Bergmann

gpio: rcar: fix gpio_rcar_of_table

2013-06-19T15:47:25+00:00

The device table needs to be terminated with an empty element.

Signed-off-by: Arnd Bergmann 
Cc: Laurent Pinchart 
Cc: Simon Horman

gpio-rcar: Remove #ifdef CONFIG_OF around OF-specific sections

2013-06-19T12:38:38+00:00

All functions and data types used by OF-specific code paths are declared
in  regardless of CONFIG_OF. Replace the #ifdef CONFIG_OF
guard with a if(IS_ENABLED(CONFIG_OF)) and let the compiler optimize
the unused code away.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Simon Horman

gpio-rcar: Use OUTDT when reading GPIOs configured as output

2013-06-17T08:34:36+00:00

Testing on r8a7790 shows that INDT does not indicate the correct
pin state when reading a GPIO configured as output, so update
the gpio_rcar_get() function to handle this case.

Signed-off-by: Magnus Damm 
Signed-off-by: Linus Walleij

gpio-rcar: Add DT support

2013-06-12T12:48:09+00:00

Add DT bindings for the gpio-rcar driver and read the device
configuration from the DT node at probe time if available.

Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Laurent Pinchart 
Signed-off-by: Simon Horman

gpio-rcar: Add support for IRQ_TYPE_EDGE_BOTH

2013-06-04T11:28:36+00:00

As hardware support for this feature is not universal for all SoCs a flag,
has_both_edge_trigger, has been added to the platform data of the driver to
allow this feature to be enabled.

The motivation for this is to allow use of the gpio-keys driver on the
lager board which is based on the r8a7790 SoC. The V2 of this patch has been
fully exercised using that driver on that board.

Signed-off-by: Magnus Damm 
Signed-off-by: Simon Horman