From d79ac324789839b4b10b37e2ff64dd9e4a92441e Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Mon, 25 Apr 2016 10:50:42 +0200 Subject: i2c: muxes: Add support for TI PCA954X mux Add support for common TI i2c mux which is available on ZynqMP zcu102 board. DM i2c mux core code is selecting/deselecting bus before/after every command is performed that's why only one channel is active at a time. That's also the reason why deselect is just disable all available channels. Signed-off-by: Michal Simek Reviewed-by: Heiko Schocher Reviewed-by: Simon Glass --- drivers/i2c/muxes/Kconfig | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/i2c/muxes/Kconfig') diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig index f959d9de9e..48900ed2af 100644 --- a/drivers/i2c/muxes/Kconfig +++ b/drivers/i2c/muxes/Kconfig @@ -24,3 +24,13 @@ config I2C_ARB_GPIO_CHALLENGE I2C multimaster arbitration scheme using GPIOs and a challenge & response mechanism where masters have to claim the bus by asserting a GPIO. + +config I2C_MUX_PCA954x + tristate "TI PCA954x I2C Mux/switches" + depends on I2C_MUX + help + If you say yes here you get support for the TI PCA954x + I2C mux/switch devices. It is x width I2C multiplexer which enables to + paritioning I2C bus and connect multiple devices with the same address + to the same I2C controller where driver handles proper routing to + target i2c device. PCA9544 and PCA9548 are supported. -- cgit