From c71bcdcb42a7493348d3b45dee8139843bf45efc Mon Sep 17 00:00:00 2001 From: Ajay Gupta Date: Fri, 26 Oct 2018 09:36:58 -0700 Subject: i2c: add i2c bus driver for NVIDIA GPU Latest NVIDIA GPU card has USB Type-C interface. There is a Type-C controller which can be accessed over I2C. This driver adds I2C bus driver to communicate with Type-C controller. I2C client driver will be part of USB Type-C UCSI driver. Signed-off-by: Ajay Gupta Reviewed-by: Andy Shevchenko [wsa: kept Makefile sorting] Signed-off-by: Wolfram Sang --- Documentation/i2c/busses/i2c-nvidia-gpu | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 Documentation/i2c/busses/i2c-nvidia-gpu (limited to 'Documentation/i2c') diff --git a/Documentation/i2c/busses/i2c-nvidia-gpu b/Documentation/i2c/busses/i2c-nvidia-gpu new file mode 100644 index 000000000000..31884d2b2eb5 --- /dev/null +++ b/Documentation/i2c/busses/i2c-nvidia-gpu @@ -0,0 +1,18 @@ +Kernel driver i2c-nvidia-gpu + +Datasheet: not publicly available. + +Authors: + Ajay Gupta + +Description +----------- + +i2c-nvidia-gpu is a driver for I2C controller included in NVIDIA Turing +and later GPUs and it is used to communicate with Type-C controller on GPUs. + +If your 'lspci -v' listing shows something like the following, + +01:00.3 Serial bus controller [0c80]: NVIDIA Corporation Device 1ad9 (rev a1) + +then this driver should support the I2C controller of your GPU. -- cgit v1.2.3-58-ga151