Re: [PATCH 2/5] dt-bindings: i2c: nvidia,tegra20-i2c: Document Tegra264 I2C
From: Thierry Reding <hidden>
Date: 2025-01-08 16:47:26
Also in:
linux-i2c, linux-tegra, lkml
On Wed, Jan 08, 2025 at 04:36:17PM +0530, Kartik Rajput wrote:
quoted hunk ↗ jump to hunk
Tegra264 has 17 generic I2C controllers, two of which are in always-on partition of the SoC. In addition to the features supported by Tegra194 it also supports a MUTEX register to allow sharing the same I2C instance across multiple firmware. Document compatible string "nvidia,tegra264-i2c" for Tegra264 I2C. Signed-off-by: Kartik Rajput <redacted> --- .../devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml | 6 ++++++ 1 file changed, 6 insertions(+)diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml index b57ae6963e62..2a016359328e 100644 --- a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml@@ -80,6 +80,12 @@ properties: support for 64 KiB transactions whereas earlier chips supported no more than 4 KiB per transactions. const: nvidia,tegra194-i2c + - description: | + Tegra264 has 17 generic I2C controllers, two of which are in the AON + (always-on) partition of the SoC. In addition to the features from + T194, a MUTEX register is added to support use of the same I2C
Maybe spell out Tegra194 above for consistency?
+ instance across multiple firmware.
I don't know if this last sentence makes much sense in a DT bindings document, but doesn't hurt either. Maybe s/firmware/firmwares/. Thierry
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