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| author | Ajay Gupta <ajayg@nvidia.com> | 2018-10-26 09:36:58 -0700 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-11-09 17:46:43 +0100 |
| commit | c71bcdcb42a7493348d3b45dee8139843bf45efc (patch) | |
| tree | 898d986d11cfad2571028ec4d98df2fa7958df3d /Documentation/i2c | |
| parent | 848bd3f3de9d44950c00eda6c115e8e9785440da (diff) | |
| download | lwn-c71bcdcb42a7493348d3b45dee8139843bf45efc.tar.gz lwn-c71bcdcb42a7493348d3b45dee8139843bf45efc.zip | |
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 <ajayg@nvidia.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[wsa: kept Makefile sorting]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation/i2c')
| -rw-r--r-- | Documentation/i2c/busses/i2c-nvidia-gpu | 18 |
1 files changed, 18 insertions, 0 deletions
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 <ajayg@nvidia.com> + +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. |