u-boot.git/drivers/gpio/Kconfig, branch v2017.05

gpio: Kconfig: add CONFIG_AT91_GPIO option

2017-04-13T20:44:50Z

The CONFIG_AT91_GPIO option is used to select AT91 PIO GPIO driver. Signed-off-by: Wenyou Yang Reviewed-by: Simon Glass Reviewed-by: Andreas Bießmann

gpio: Add Rapid GPIO2P driver for i.MX7ULP

2017-03-17T08:27:08Z

Add the imx_rgpio2p driver for Rapid GPIO2P controllers on i.MX7ULP. Have added all ports on RGPIO2P_0 and RGPIO2P_1. The configurations CONFIG_IMX_RGPIO2P and CONFIG_DM_GPIO must be set to y to enable the drivers. To use the GPIO function, the IBE and OBE needs to set in IOMUXC. We did not set the bits in driver, but leave them to IOMUXC settings of the GPIO pins. User should use IMX_GPIO_NR to generate the GPIO number for gpio APIs access. Signed-off-by: Peng Fan Signed-off-by: Ye Li Reviewed-by : Stefano Babic

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