diff options
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml index b57ae6963e62..51241c1293e3 100644 --- a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml +++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml @@ -80,6 +80,17 @@ properties: support for 64 KiB transactions whereas earlier chips supported no more than 4 KiB per transactions. const: nvidia,tegra194-i2c + - description: | + Tegra256 has 8 generic I2C controllers. The controllers are similar to + the previous generations, but have a different parent clock and hence + the timing parameters are configured differently. + const: nvidia,tegra256-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 + Tegra194, a SW mutex register is added to support use of the same I2C + instance across multiple firmwares. + const: nvidia,tegra264-i2c reg: maxItems: 1 @@ -97,7 +108,10 @@ properties: resets: items: - - description: module reset + - description: + Module reset. This property is optional for controllers in Tegra194, + Tegra234 etc where an internal software reset is available as an + alternative. reset-names: items: @@ -116,6 +130,13 @@ properties: - const: rx - const: tx +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + allOf: - $ref: /schemas/i2c/i2c-controller.yaml - if: @@ -169,6 +190,20 @@ allOf: properties: power-domains: false + - if: + not: + properties: + compatible: + contains: + enum: + - nvidia,tegra194-i2c + - nvidia,tegra256-i2c + - nvidia,tegra264-i2c + then: + required: + - resets + - reset-names + unevaluatedProperties: false examples: |