This series adds support for TI's PCF8575 I2C GPIO expander[1] based on Linux Kernel driver for the same. Also adds support for ethernet to use new PCF8575 driver to select appropriate cpsw slaves on dra72.
Depends on I2C DM support [2]
Tested on DRA72 EVM.
[1]http://www.ti.com/lit/ds/symlink/pcf8575.pdf [2]https://www.mail-archive.com/u-boot@lists.denx.de/msg218923.html
Vignesh R (4): gpio: Add driver for TI PCF8575 I2C GPIO expander ARM: dra7xx_evm: Enable support for TI PCF8575 net: cpsw: Add support to drive gpios for ethernet to be functional ARM: dts: dra72-evm: Add mode-gpios entry for mac node
arch/arm/dts/dra72-evm.dts | 2 +- doc/device-tree-bindings/gpio/gpio-pcf857x.txt | 71 +++++++++ drivers/gpio/Kconfig | 7 + drivers/gpio/Makefile | 1 + drivers/gpio/pcf8575_gpio.c | 190 +++++++++++++++++++++++++ drivers/net/cpsw.c | 12 ++ include/configs/dra7xx_evm.h | 5 + 7 files changed, 287 insertions(+), 1 deletion(-) create mode 100644 doc/device-tree-bindings/gpio/gpio-pcf857x.txt create mode 100644 drivers/gpio/pcf8575_gpio.c