u-boot.git/drivers/gpio, branch v2017.11

stm32: fix STMicroelectronics copyright

2017-11-06T14:51:01+00:00

Uniformize STMicroelectronics copyrights headers for STM32
related code.

Signed-off-by: Patrice Chotard

gpio: uniphier: rework single device node model

2017-10-15T13:32:24+00:00

First, I implemented this driver as per-bank model, but it was
a design mistake.

  - There are 31 banks in the maximum case.  It is painful to add
    so many nodes to DT.

  - The IRQ control registers are shared between banks.  Per-bank
    design is a problem for Linux.  The counterpart for Linux turned
    around to the single node model.

Rework based on the driver for Linux.

Signed-off-by: Masahiro Yamada

Merge branch 'rmobile' of git://git.denx.de/u-boot-sh

2017-10-11T00:14:38+00:00

dm: gpio: pca953x: Drop pointless data structure checks

2017-10-09T02:41:09+00:00

These checks cannot fail since driver model will not call a driver's
method if it cannot fully create the driver data structures.

It is confusing to have these checks and others might copy them. Drop this
code.

Signed-off-by: Simon Glass

dm: gpio: Correct use of -ENODEV in drivers

2017-10-09T02:41:09+00:00

In U-Boot -ENODEV means that there is no device. When there is a problem
with the device, drivers should return an error like -ENXIO or -EREMOTEIO.
When the device tree properties cannot be read correct , they should
return -EINVAL.

Update various GPIO drivers to follow this rule, to help with consistency
for future driver writers.

Signed-off-by: Simon Glass 
Reported-by: Adam Ford

dm: gpio: Add a comment about not copying some drivers

2017-10-09T02:41:08+00:00

These three drivers all use U_BOOT_DEVICE rather than device tree to
create devices, so have to do manual allocation of platform data. This is
not true for new platforms.

Add a more explicit comment so that people do not copy this approach with
new boards.

Signed-off-by: Simon Glass 
Reported-by: Adam Ford

dm: gpio: vybrid_gpio: Correct driver's use of bind() method

2017-10-09T02:08:19+00:00

It does not look like this driver needs to use a bind() method. It does
not manually create devices with device_bind() nor does it create devices
using U_BOOT_DEVICE(). It seems to only use device tree.

Therefore the manual allocation of platform data is not needed and is
confusing. Also platform data should be set up by the ofdata_to_platdata()
method, not bind().

Update the driver in case others use it as a model in future.

Signed-off-by: Simon Glass 
Reported-by: Adam Ford

gpio: rmobile: Add Renesas RCar GPIO driver

2017-09-27T21:54:06+00:00

Add GPIO driver for the Renesas RCar SoCs . The driver currently supports
only the RCar Gen3 R8A7795 and R8A7796 SoCs, but is easily extensible for
the other RCar SoCs as well.

This driver is meant to replace the pinmux part of SH_GPIO_PFC driver.

Signed-off-by: Marek Vasut 
Cc: Nobuhiro Iwamatsu 
Signed-off-by: Nobuhiro Iwamatsu

rockchip: gpio: remove outdated/misleading comment

2017-09-18T18:40:35+00:00

Remove a comment claiming that this driver only supports the RK3288,
as we also use it on the RK3368, RK3399 and (most likely) on other
variants.

Signed-off-by: Philipp Tomsich 
Reviewed-by: Simon Glass 
Acked-by: Philipp Tomsich 

Version-changes: 2
- use the dev_read_addr_ptr function in rk_gpio.c

rockchip: gpio: convert to livetree

2017-09-18T18:40:35+00:00

Update the Rockchip GPIO-bank driver to support a live tree.

Signed-off-by: Philipp Tomsich 
Reviewed-by: Simon Glass 
Acked-by: Philipp Tomsich 

Version-changes: 2
- use the dev_read_addr_ptr function in rk_gpio.c