linux-kernel - [PATCH 1/4] dt-bindings: media: Binding document for Qualcomm Camera Control Interface driver

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Date:   Mon,  2 Oct 2017 17:13:30 +0300
From:   Todor Tomov <todor.tomov@...aro.org>
To:     wsa@...-dreams.de, linux-i2c@...r.kernel.org
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Todor Tomov <todor.tomov@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, devicetree@...r.kernel.org
Subject: [PATCH 1/4] dt-bindings: media: Binding document for Qualcomm Camera Control Interface driver

Add DT binding document for Qualcomm Camera Control Interface driver

CC: Rob Herring <robh+dt@...nel.org>
CC: Mark Rutland <mark.rutland@....com>
CC: devicetree@...r.kernel.org
Signed-off-by: Todor Tomov <todor.tomov@...aro.org>
---
 .../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@...000 {
+                        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