From 9e80f9064e73f9f82679884ddf8b03ac3606cf4a Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Fri, 21 Oct 2016 11:09:58 +0200 Subject: 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 Tested-by: Peter Rosin Acked-by: Rob Herring ested-by: Andrey Smirnov Signed-off-by: Linus Walleij --- .../devicetree/bindings/gpio/gpio-sx150x.txt | 41 ---------------------- 1 file changed, 41 deletions(-) delete mode 100644 Documentation/devicetree/bindings/gpio/gpio-sx150x.txt (limited to 'Documentation/devicetree/bindings/gpio') diff --git a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt b/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt deleted file mode 100644 index c809acb9c71b..000000000000 --- a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt +++ /dev/null @@ -1,41 +0,0 @@ -SEMTECH SX150x GPIO expander bindings - - -Required properties: - -- compatible: should be "semtech,sx1506q", - "semtech,sx1508q", - "semtech,sx1509q", - "semtech,sx1502q". - -- reg: The I2C slave address for this device. - -- interrupt-parent: phandle of the parent interrupt controller. - -- interrupts: Interrupt specifier for the controllers interrupt. - -- #gpio-cells: Should be 2. The first cell is the GPIO number and the - second cell is used to specify optional parameters: - bit 0: polarity (0: normal, 1: inverted) - -- gpio-controller: Marks the device as a GPIO controller. - -- interrupt-controller: Marks the device as a interrupt controller. - -The GPIO expander can optionally be used as an interrupt controller, in -which case it uses the default two cell specifier as described in -Documentation/devicetree/bindings/interrupt-controller/interrupts.txt. - -Example: - - i2c_gpio_expander@20{ - #gpio-cells = <2>; - #interrupt-cells = <2>; - compatible = "semtech,sx1506q"; - reg = <0x20>; - interrupt-parent = <&gpio_1>; - interrupts = <16 0>; - - gpio-controller; - interrupt-controller; - }; -- cgit v1.2.3