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-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-omap.txt8
-rw-r--r--Documentation/i2c/busses/i2c-nvidia-gpu18
2 files changed, 24 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-omap.txt b/Documentation/devicetree/bindings/i2c/i2c-omap.txt
index 7e49839d4124..4b90ba9f31b7 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-omap.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-omap.txt
@@ -1,8 +1,12 @@
I2C for OMAP platforms
Required properties :
-- compatible : Must be "ti,omap2420-i2c", "ti,omap2430-i2c", "ti,omap3-i2c"
- or "ti,omap4-i2c"
+- compatible : Must be
+ "ti,omap2420-i2c" for OMAP2420 SoCs
+ "ti,omap2430-i2c" for OMAP2430 SoCs
+ "ti,omap3-i2c" for OMAP3 SoCs
+ "ti,omap4-i2c" for OMAP4+ SoCs
+ "ti,am654-i2c", "ti,omap4-i2c" for AM654 SoCs
- ti,hwmods : Must be "i2c<n>", n being the instance number (1-based)
- #address-cells = <1>;
- #size-cells = <0>;
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.