diff options
| author | Neil Armstrong <narmstrong@baylibre.com> | 2016-10-21 11:09:58 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-10-24 16:30:40 +0200 |
| commit | 9e80f9064e73f9f82679884ddf8b03ac3606cf4a (patch) | |
| tree | 1a4f670cb7785bca6de38ad7069b0db0af880181 /drivers/pinctrl/Kconfig | |
| parent | Linux 4.9-rc2 (diff) | |
| download | linux-9e80f9064e73f9f82679884ddf8b03ac3606cf4a.tar.xz linux-9e80f9064e73f9f82679884ddf8b03ac3606cf4a.zip | |
pinctrl: Add SX150X GPIO Extender Pinctrl Driver
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 <narmstrong@baylibre.com>
Tested-by: Peter Rosin <peda@axentia.se>
Acked-by: Rob Herring <robh@kernel.org>
ested-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/Kconfig')
| -rw-r--r-- | drivers/pinctrl/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 0e75d94972ba..801fa8bb05e1 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -164,6 +164,20 @@ config PINCTRL_SIRF select GENERIC_PINCONF select GPIOLIB_IRQCHIP +config PINCTRL_SX150X + bool "Semtech SX150x I2C GPIO expander pinctrl driver" + depends on GPIOLIB && I2C=y + select PINMUX + select PINCONF + select GENERIC_PINCONF + select GPIOLIB_IRQCHIP + help + Say yes here to provide support for Semtech SX150x-series I2C + GPIO expanders as pinctrl module. + Compatible models include: + - 8 bits: sx1508q, sx1502q + - 16 bits: sx1509q, sx1506q + config PINCTRL_PISTACHIO def_bool y if MACH_PISTACHIO depends on GPIOLIB |