u-boot.git/drivers/gpio/Kconfig, branch v2016.09

gpio: atmel_pio4: Rework to support DM & DT

2016-08-15T20:58:03Z

Rework the driver to support driver model and device tree, and support to regard the pio4 pinctrl device as a child of atmel_pio4 device. Signed-off-by: Wenyou Yang Reviewed-by: Simon Glass

gpio: Add driver for TI PCF8575 I2C GPIO expander

2016-08-08T17:32:53Z

TI's PCF8575 is a 16-bit I2C GPIO expander.The device features a 16-bit quasi-bidirectional I/O ports. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. The I/Os should be high before being used as inputs. Read the device documentation for more details[1]. This driver is based on pcf857x driver available in Linux v4.7 kernel. It supports basic reading and writing of gpio pins. [1] http://www.ti.com/lit/ds/symlink/pcf8575.pdf Signed-off-by: Vignesh R Reviewed-by: Tom Rini Reviewed-by: Simon Glass Reviewed-by: Mugunthan V N

Merge branch 'master' of git://git.denx.de/u-boot-mpc85xx

2016-06-04T16:12:26Z

dm: gpio: Implement open drain for MPC85XX GPIO

2016-06-04T05:14:12Z

This patch implements the open-drain setting feature for the MPC85XX GPIO controller. Signed-off-by: Mario Six Reviewed-by: Simon Glass Reviewed-by: York Sun

dm: gpio: Add driver for MPC85XX GPIO controller

2016-06-04T05:13:24Z

This patch adds a driver for the built-in GPIO controller of the MPC85XX SoC (probably supporting other PowerQUICC III SoCs as well). Each GPIO bank is identified by its own entry in the device tree, i.e. gpio-controller@fc00 { #gpio-cells = <2>; compatible = "fsl,pq3-gpio"; reg = <0xfc00 0x100> } By default, each bank is assumed to have 32 GPIOs, but the ngpios setting is honored, so the number of GPIOs for each bank in configurable to match the actual GPIO count of the SoC (e.g. the 32/32/23 banks of the P1022 SoC). The usual functions of GPIO drivers (setting input/output mode and output value setting) are supported. The driver has been tested on MPC85XX, but it is likely that other PowerQUICC III devices will work as well. Signed-off-by: Mario Six Reviewed-by: Simon Glass Reviewed-by: York Sun

gpio: add Tegra186 GPIO driver

2016-05-31T16:54:24Z

Tegra186's GPIO controller register layout is significantly different from previous chips, so add a new driver for it. In fact, there are two different GPIO controllers in Tegra186 that share a similar register layout, but very different port mapping. This driver covers both. The DT binding is already present in the Linux kernel (in linux-next via the Tegra tree so far). Signed-off-by: Stephen Warren Reviewed-by: Simon Glass # v1 Signed-off-by: Tom Warren

ARM: tegra: convert CONFIG_TEGRA_GPIO to Kconfig

2016-05-31T16:53:57Z

Future chips will contain different GPIO HW. This change will enable future SoC support to select the appropriate GPIO driver for their HW, in a future-looking fashion, using Kconfig. TEGRA_GPIO is not simply selected by TEGRA_COMMON (even though all current Tegra chips used this GPIO HW) to simplify the later addition of support for Tegra SoCs that use different GPIO HW. Signed-off-by: Stephen Warren Reviewed-by: Simon Glass Signed-off-by: Tom Warren

dm: gpio: introduce 74x164 driver

2016-05-17T15:54:43Z

Introduce driver to support "fairchild,74hc595" devices. 1. Take linux drivers/drivers/gpio/gpio-74x164.c as reference. 2. Following the naming used in Linux driver with gen_7x164 as the prefix. 3. Enable CONFIG_DM_74X164 to use this driver. 4. Follow Documentation/devicetree/bindings/gpio/gpio-74x164.txt to add device nodes 5. Tested on i.MX6 UltraLite with 74LV595 using gpio command and oscillograph. Signed-off-by: Peng Fan Cc: Simon Glass Cc: Masahiro Yamada Cc: Chin Liang See Cc: Bhuvanchandra DV Cc: Daniel Schwierzeck Cc: Fabio Estevam Cc: Stefano Babic Reviewed-by: Simon Glass

dm: gpio: pca953x: introduce driver model support for pca953x

2016-05-17T15:54:43Z

Introduce a new driver that supports driver model for pca953x. The pca953x chips are used as I2C I/O expanders. This driver is designed to support the following chips: " 4 bits: pca9536, pca9537 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, pca9556, pca9557, pca9574, tca6408, xra1202 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, tca6416 24 bits: tca6424 40 bits: pca9505, pca9698 " But for now this driver only supports max 24 bits and pca953x compatible chips. pca957x compatible chips are not supported now. These can be addressed when we need to add such support for the different chips. This driver has been tested on i.MX6 SoloX Sabreauto board with max7310 i2c expander using gpio command as following: =>gpio status -a Bank gpio@30_: gpio@30_0: input: 1 [ ] => dm tree: i2c [ ] | | `-- i2c@021a8000 gpio [ ] | | |-- gpio@30 gpio [ ] | | `-- gpio@32 Signed-off-by: Peng Fan Cc: Simon Glass Cc: Masahiro Yamada Cc: Wenyou Yang Cc: Daniel Schwierzeck Cc: Purna Chandra Mandal Cc: Thomas Chou Cc: Bhuvanchandra DV Cc: Andrea Scian Cc: Michal Simek Cc: Stefano Babic Cc: Fabio Estevam Acked-by: Simon Glass Tested-by: Michal Simek #on ZynqMP zcu102

zynqmp: Kconfig: Enable ZYNQ_GPIO for ZynqMP

2016-04-13T16:29:06Z

Enable ZYNQ_GPIO for ZynqMP using Kconfig. It enables the GPIO driver support for ZynqMP. Signed-off-by: Siva Durga Prasad Paladugu Signed-off-by: Michal Simek