u-boot.git/drivers/pinctrl, branch v2016.03-rc2

drivers: pinctrl: Add pinctrl driver for Microchip PIC32.

2016-02-01T21:14:00+00:00

In PIC32 pin-controller is a combined gpio-controller, pin-mux and
pin-config module. Remappable peripherals are assigned pins through
per-pin based muxing logic. And pin configuration are performed on
specific port registers which are shared along with gpio controller.
Note, non-remappable peripherals have default pins assigned thus
require no muxing.

Signed-off-by: Purna Chandra Mandal 
Reviewed-by: Tom Rini 
Reviewed-by: Daniel Schwierzeck 
Reviewed-by: Simon Glass

bug.h: move BUILD_BUG_* defines to include/linux/bug.h

2016-01-25T15:39:59+00:00

BUILD_BUG_* macros have been defined in several headers.  It would
be nice to collect them in include/linux/bug.h like Linux.

This commit is cherry-picking useful macros from include/linux/bug.h
of Linux 4.4.

I did not import BUILD_BUG_ON_MSG() because it would not work if it
is used with include/common.h in U-Boot.  I'd like to postpone it
until the root cause (the "error()" macro in include/common.h causes
the name conflict with "__attribute__((error()))") is fixed.

Signed-off-by: Masahiro Yamada 
Reviewed-by: Tom Rini

rockchip: rk3288: pinctrl: Fix HDMI pinctrl

2016-01-22T03:42:37+00:00

Since the device tree does not specify the EDID pinctrl option for HDMI we
must set it manually. Fix the driver to handle this.

Signed-off-by: Simon Glass

rockchip: pinctrl: Implement the get_gpio_mux() method

2016-01-22T03:42:35+00:00

Implement this so that the GPIO command will be able to report whether a
GPIO is used for input or output.

Signed-off-by: Simon Glass

rockchip: pinctrl: Reduce the size for SPL

2016-01-22T03:42:35+00:00

This file has many features that are not needed by SPL. Use #ifdef to
remove the unused features and reduce the code size.

Signed-off-by: Simon Glass

dm: pinctrl: Add a way for a GPIO driver to obtain a pin function

2016-01-22T03:42:35+00:00

GPIO drivers want to be able to show if a pin is enabled for input, output,
or is being used by another function. Some drivers can easily find this
and the code is included in the driver. For some SoCs this is more complex.
Conceptually this should be handled by pinctrl rather than GPIO. Most
pinctrl drivers will have this feature anyway.

Add a method by which a GPIO driver can obtain the pin mux value given a
GPIO reference. This avoids repeating the code in two places.

Signed-off-by: Simon Glass

rockchip: pinctrl: Add a full pinctrl driver

2016-01-22T03:42:35+00:00

We can make use of the device tree to configure pinctrl settings. Add this
support for the driver so we can use it in U-Boot proper.

Signed-off-by: Simon Glass

rockchip: Convert the PMU IOMUX registers into an array

2016-01-22T03:42:34+00:00

This is easier to deal with when using generic code since it allows us to
use a register index instead of naming each register.

Adjust it, adding an enum to improve readability.

Signed-off-by: Simon Glass

dm: pinctrl: Add a function to parse PIN_CONFIG flags

2016-01-22T03:42:34+00:00

Add a function which produces a flags word from a few common PIN_CONFIG
settings. This is useful for simple pinctrl drivers that don't need to worry
about drive strength, etc.

Signed-off-by: Simon Glass

rockchip: rk3036: Bind GPIO banks

2016-01-22T03:04:04+00:00

Call dm_scan_fdt_node() in rk3036 pinctrl uclass binding.

Signed-off-by: Jeffy Chen 
Acked-by: Simon Glass 
Reviewed-by: Tom Rini