Add DT binding document for Qualcomm Camera Control Interface driver CC: Rob Herring <robh+dt@xxxxxxxxxx> CC: Mark Rutland <mark.rutland@xxxxxxx> CC: devicetree@xxxxxxxxxxxxxxx Signed-off-by: Todor Tomov <todor.tomov@xxxxxxxxxx> --- .../devicetree/bindings/i2c/i2c-qcom-cci.txt | 55 ++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-qcom-cci.txt diff --git a/Documentation/devicetree/bindings/i2c/i2c-qcom-cci.txt b/Documentation/devicetree/bindings/i2c/i2c-qcom-cci.txt new file mode 100644 index 0000000..f4c5338 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-qcom-cci.txt @@ -0,0 +1,55 @@ +Qualcomm Camera Control Interface I2C controller + +Required properties: + - compatible: Should be one of: + - "qcom,cci-v1.0.8" for 8916; + - "qcom,cci-v1.4.0" for 8996. + - #address-cells: Should be <1>. + - #size-cells: Should be <0>. + - reg: Base address of the controller and length of memory mapped region. + - reg-names: Should be "cci". + - interrupts: Specifier for CCI interrupt. + - interrupt-names: Should be "cci". + - clocks: List of clock specifiers, one for each entry in clock-names. + - clock-names: Should contain: + - "mmss_mmagic_ahb" - on 8996 only; + - "camss_top_ahb"; + - "cci_ahb"; + - "cci"; + - "camss_ahb". + - pinctrl-names: Should contain only one value - "default". + - pinctrl-0: Pin control group to be used for this controller. + + +Required properties on 8996: + - power-domains: Power domain specifier. + +Optional: + - clock-frequency: Desired I2C bus clock frequency in Hz, defaults to 100 kHz + if omitted. + +Example: + + cci: qcom,cci@a0c000 { + compatible = "qcom,cci-v1.4.0"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0xa0c000 0x1000>; + reg-names = "cci"; + interrupts = <GIC_SPI 295 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "cci"; + power-domains = <&mmcc CAMSS_GDSC>; + clocks = <&mmcc MMSS_MMAGIC_AHB_CLK>, + <&mmcc CAMSS_TOP_AHB_CLK>, + <&mmcc CAMSS_CCI_AHB_CLK>, + <&mmcc CAMSS_CCI_CLK>, + <&mmcc CAMSS_AHB_CLK>; + clock-names = "mmss_mmagic_ahb", + "camss_top_ahb", + "cci_ahb", + "cci", + "camss_ahb"; + pinctrl-names = "default"; + pinctrl-0 = <&cci0_default>; + clock-frequency = <400000>; + }; -- 2.7.4