linux.git/drivers/pinctrl/Kconfig, branch v4.9

pinctrl: Add core support for Aspeed SoCs

2016-09-07T14:48:22+00:00

The Aspeed SoCs typically provide more than 200 pins for GPIO and other
functions. The signal enabled on a pin is determined on a priority
basis, where a given pin can provide a number of different signal types.

In addition to the priority levels, the Aspeed pin controllers describe
the signal active on a pin by compound logical expressions involving
multiple operators, registers and bits. Some difficulty arises as a
pin's function bit masks for each priority level are frequently not the
same (i.e. we cannot just flip a bit to change from a high to low
priority signal), or even in the same register(s). Some configuration
bits affect multiple pins, while in other cases the signals for a bus
must each be enabled individually.

Together, these features give rise to some complexity in the
implementation. A more complete description of the complexities is
provided in the associated header file.

The patch doesn't implement pinctrl/pinmux/pinconf for any particular
Aspeed SoC, rather it adds the framework for defining pinmux
configurations.

Signed-off-by: Andrew Jeffery 
Reviewed-by: Joel Stanley 
Signed-off-by: Linus Walleij

pinctrl: as3722: convert PINCTRL_AS3722 from bool to tristate

2016-06-22T16:09:24+00:00

The Kconfig currently controlling compilation of this code is:

config PINCTRL_AS3722
        bool "Pinctrl and GPIO driver for ams AS3722 PMIC"

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

During an audit for non-modular drivers using modular infrastructure
this driver showed up.

But rather than demodularize it, Laxman indicated that it would be
prefereable to instead convert the driver option to tristate.

This does that, and confirms that it will compile and modpost as
such.  However, since I do not have the hardware to confirm that
no new runtime issues exist when modular, that remains untested.

Cc: Laxman Dewangan 
Cc: Linus Walleij 
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker 
Signed-off-by: Linus Walleij

pinctrl: palmas: convert PINCTRL_PALMAS from bool to tristate

2016-06-22T16:08:31+00:00

The Kconfig currently controlling compilation of this code is:

config PINCTRL_PALMAS
        bool "Pinctrl driver for the PALMAS Series MFD devices"

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

During an audit for non-modular drivers using modular infrastructure
this driver showed up.

But rather than demodularize it, Laxman indicated that it would be
prefereable to instead convert the driver option to tristate.

This does that, and confirms that it will compile and modpost as
such.  However, since I do not have the hardware to confirm that
no new runtime issues exist when modular, that remains untested.

Cc: Laxman Dewangan 
Cc: Linus Walleij 
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker 
Signed-off-by: Linus Walleij

pinctrl: max77620: select PINMUX

2016-06-15T06:37:41+00:00

The recently added max77620 driver fails to build when CONFIG_PINMUX
is not set:

pinctrl/pinctrl-max77620.c:272:21: error: variable 'max77620_pinmux_ops' has initializer but incomplete type
 static const struct pinmux_ops max77620_pinmux_ops = {
                     ^~~~~~~~~~
pinctrl/pinctrl-max77620.c:273:2: error: unknown field 'get_functions_count' specified in initializer

This adds the Kconfig 'select' statement that was clearly meant
to be there and is used in all other pinmux drivers.

Signed-off-by: Arnd Bergmann 
Signed-off-by: Linus Walleij

pinctrl: max77620: add pincontrol driver for MAX77620/MAX20024

2016-05-30T07:41:47+00:00

MAXIM Semiconductor's PMIC, MAX77620/MAX20024 has 8 GPIO pins
which also act as the special function in alternate mode. Also
there is configuration like push-pull, open drain, FPS timing
etc for these pins.

Add pin control driver to configure these parameters through
pin control APIs.

Signed-off-by: Laxman Dewangan 
Reviewed-by: Linus Walleij 
Signed-off-by: Linus Walleij

pinctrl: Add Oxford Semiconductor OXNAS pinctrl and gpio driver

2016-05-30T07:41:45+00:00

Add pinctrl and gpio control support to Oxford Semiconductor OXNAS SoC Family.
This version supports the ARM926EJ-S based OX810SE SoC with 34 IO pins.

Signed-off-by: Neil Armstrong 
Signed-off-by: Linus Walleij

pinctrl: Turn AMD support to tristate

2016-02-15T23:11:49+00:00

The pinctrl-amd driver builds just fine as a module so give
users this option.

Signed-off-by: Jean Delvare 
Cc: Linus Walleij 
Signed-off-by: Linus Walleij

pinctrl: pinctrl-pic32: Add PIC32 pin control driver

2016-02-05T22:54:47+00:00

Add a driver for the pin controller present on the Microchip PIC32
including the specific variant PIC32MZDA. This driver provides pinmux
and pinconfig operations as well as GPIO and IRQ chips for the GPIO
banks.

Signed-off-by: Joshua Henderson 
Cc: Ralf Baechle 
Cc: Linus Walleij 
Signed-off-by: Linus Walleij

pinctrl: tegra: move Tegra pinctrl drivers to sub-directory

2016-02-05T14:16:43+00:00

Tegra has several pinctrl drivers.  Now it is reasonable enough to
move them into drivers/pinctrl/tegra/.

Signed-off-by: Masahiro Yamada 
Acked-by: Thierry Reding 
Signed-off-by: Linus Walleij

pinctrl: Add STM32 MCUs support

2016-01-27T13:18:46+00:00

This patch adds pinctrl and GPIO support to STMicroelectronic's STM32
family of MCUs.

While it only supports STM32F429 for now, it has been designed to enable
support of other MCUs of the family (e.g. STM32F746).

Acked-by: Patrice Chotard 
Signed-off-by: Maxime Coquelin 
Signed-off-by: Linus Walleij