linux-toradex.git/drivers/pinctrl/Kconfig, branch v4.10

pinctrl: New driver for TI DA850/OMAP-L138/AM18XX pinconf

2016-12-07T14:27:00+00:00

This adds a new driver for pinconf on TI DA850/OMAP-L138/AM18XX. These
SoCs have a separate controller for controlling pullup/pulldown groups.

Signed-off-by: David Lechner 
Reviewed-by: Sekhar Nori 
Signed-off-by: Linus Walleij

pinctrl-sx150x: Convert driver to use regmap API

2016-11-08T08:39:06+00:00

To allow for future code simplification

Tested-by: Neil Armstrong 
Acked-by: Neil Armstrong 
Signed-off-by: Andrey Smirnov 
Signed-off-by: Linus Walleij

pinctrl: max77620: add OF dependency

2016-10-29T08:30:16+00:00

Drivers using pinconf_generic_params tables cannot be built with
CONFIG_OF disabled:

drivers/pinctrl/pinctrl-max77620.c:53:44: error: array type has incomplete element type ‘struct pinconf_generic_params’
drivers/pinctrl/pinctrl-max77620.c:55:3: error: field name not in record or union initializer
drivers/pinctrl/pinctrl-max77620.c:55:3: note: (near initialization for ‘max77620_cfg_params’)
drivers/pinctrl/pinctrl-max77620.c:56:3: error: field name not in record or union initializer

This adds a dependency for max77620 to disallow that configuration.

Alternatively, we could rework the pinctrl infrastructure to make the
configuration valid for compile-testing.

Cc: Krzysztof Kozlowski 
Cc: Lee Jones 
Fixes: 453943dc8f45 ("mfd: Enable compile testing for max77620 and max77686")
Signed-off-by: Arnd Bergmann 
Signed-off-by: Linus Walleij

pinctrl: Add SX150X GPIO Extender Pinctrl Driver

2016-10-24T14:30:40+00:00

Since the I2C sx150x GPIO expander driver uses platform_data to manage
the pins configurations, rewrite the driver as a pinctrl driver using
pinconf to get/set pin configurations from DT or debugfs.

The pinctrl driver is functionnally equivalent as the gpio-only driver
and can use DT for pinconf. The platform_data confirmation is dropped.

This patchset removed the gpio-only driver and selects the Pinctrl driver
config instead. This patchset also migrates the gpio dt-bindings to pinctrl
and add the pinctrl optional properties.

The driver was tested with a SX1509 device on a BeagleBone black with
interrupt support and on an X86_64 machine over an I2C to USB converter.

This is a fixed version that builds and runs on non-OF platforms and on
arm based OF. The GPIO version is removed and the bindings are also moved
to the pinctrl bindings.

Changes since v2
 - rebased on v4.9-rc1
 - removed MODULE_DEVICE_TABLE as in upstream bb411e771b0e
   ("gpio: sx150x: fix implicit assumption module.h is present")

Changes since v1
 - Fix Kconfig descriptions on pinctrl and gpio
 - Fix Kconfig dependency
 - Remove oscio support for non-789 devices
 - correct typo in dt bindings
 - remove probe reset for non-789 devices

Changes since RFC
 - Put #ifdef CONFIG_OF/CONFIG_OF_GPIO to remove OF code for non-of platforms
 - No more rely on OF_GPIO config
 - Moved and enhanced bindings to pinctrl bindings
 - Removed gpio-sx150x.c
 - Temporary select PINCTRL_SX150X when GPIO_SX150X
 - Temporary mark GPIO_SX150X as deprecated

Signed-off-by: Neil Armstrong 
Tested-by: Peter Rosin 
Acked-by: Rob Herring 
ested-by: Andrey Smirnov 
Signed-off-by: Linus Walleij

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