linux-toradex.git/drivers/gpio/gpio-tegra.c, branch v4.9.67

gpio: tegra: Make lockdep class file-scoped

2016-06-22T15:58:07+00:00

Commit b546be0db955 ("gpio: tegra: Get rid of all file scoped global
variables") moved all file scoped variables into the driver-private
structure to allow potentially multiple instances of the driver. The
change also included turning the lockdep class into a driver-private
field, which doesn't work and produces error messages such as this:

	[    0.142310] BUG: key ffff8000fb3f7ab0 not in .data!

Make the lockdep class file-scoped again to fix this issue.

Signed-off-by: Thierry Reding 
Signed-off-by: Linus Walleij

gpio: tegra: Implement gpio_get_direction callback

2016-04-30T11:15:10+00:00

Implement gpio_get_direction() callback for Tegra GPIO.
The direction is only valid if the pin is configured as
GPIO. If pin is not configured in GPIO mode then this
function return error.

Signed-off-by: Laxman Dewangan 
Reviewed-by: Stephen Warren 
Acked-by: Jon Hunter 
Signed-off-by: Linus Walleij

gpio: tegra: Add support for gpio debounce

2016-04-29T09:03:15+00:00

NVIDIA's Tegra210 support the HW debounce in the GPIO controller
for all its GPIO pins.

Add support for setting debounce timing by implementing the
set_debounce callback of gpiochip.

Signed-off-by: Laxman Dewangan 
Reviewed-by: Stephen Warren 
Reviewed-by: Alexandre Courbot 
Signed-off-by: Linus Walleij

gpio: tegra: Get rid of all file scoped global variables

2016-04-29T09:00:51+00:00

Move the file scoped multiple global variable from Tegra GPIO
driver to the structure and make this as gpiochip data which
can be referred from GPIO chip callbacks.

Signed-off-by: Laxman Dewangan 
Reviewed-by: Stephen Warren 
Reviewed-by: Alexandre Courbot 
Signed-off-by: Linus Walleij

gpio: tegra: Make of_device_id compatible data to constant

2016-04-29T08:59:45+00:00

The data member of the of_device_id is the constant type
and hence all static structure which is used for this
initialisation as static.

Signed-off-by: Laxman Dewangan 
Suggested-by: Thierry Reding 
Reviewed-by: Stephen Warren 
Signed-off-by: Linus Walleij

gpio: tegra: Don't open code of_device_get_match_data()

2016-04-29T08:58:21+00:00

Use of_device_get_match_data() for getting matched data
instead of implementing this locally.

Signed-off-by: Laxman Dewangan 
Reviewed-by: Stephen Warren 
Reviewed-by: Alexandre Courbot 
Acked-by: Thierry Reding 
Signed-off-by: Linus Walleij

gpio: tegra: Use devm_gpiochip_add_data() for gpio registration

2016-02-23T15:05:46+00:00

Use devm_gpiochip_add_data() for GPIO registration.

Signed-off-by: Laxman Dewangan 
Cc: Stephen Warren 
Cc: Thierry Reding

gpio: convert remaining users to gpiochip_add_data()

2016-01-05T10:21:20+00:00

For completion, sweep the floor from all gpiochip_add() usage so
we can remove that function and get rid of the function wrapper
gpiochip_add().

Signed-off-by: Linus Walleij

gpio-tegra: Do not create the debugfs entry by default

2015-11-17T14:18:51+00:00

The tegra gpio driver creates the debugfs entry irrespective of
whether the device exists or not. This is enabled on an arm64_defconfig
and leaves an entry in debugfs on all platforms where it is not
useful. This patch fixes the issue by creating the entry only when
a device exists.

Signed-off-by: Suzuki K. Poulose 
Acked-by: Thierry Reding 
Signed-off-by: Linus Walleij

genirq: Remove irq argument from irq flow handlers

2015-09-16T13:47:51+00:00

Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu