[PATCH v3 3/3] arm64: dts: qcom: sm8250-xiaomi-elish: Add ov8856 front camera

[Xin Xu <xxsemail@qq.com>]

Add the ov8856 front camera, connected on CCI1 to CSIPHY4 and
powered by pm8008 LDOs and other supplies.

Signed-off-by: Xin Xu <xxsemail@qq.com>
---
Changes in v3:
  - Reorder pinctrl properties in camera_front_active.
  - Use the new cam_mclk3_default from sm8250.dtsi and remove board-local
    mclk3 node.

Changes in v2:
  - Fix coding style (property order)

 .../dts/qcom/sm8250-xiaomi-elish-common.dtsi  | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-common.dtsi b/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-common.dtsi
index 05c366eaeff1..19aff83ecf7b 100644
--- a/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-common.dtsi
@@ -4,6 +4,7 @@
  */
 
 #include <dt-bindings/arm/qcom,ids.h>
+#include <dt-bindings/media/video-interfaces.h>
 #include <dt-bindings/phy/phy.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 #include <dt-bindings/usb/pd.h>
@@ -531,6 +532,61 @@ vreg_l7f_1p8: ldo7 {
 	};
 };
 
+&camss {
+	status = "okay";
+
+	vdda-phy-supply = <&vreg_l5a_0p88>;
+	vdda-pll-supply = <&vreg_l9a_1p2>;
+
+	ports {
+		port@4 {
+			csiphy4_ep: endpoint {
+				clock-lanes = <7>;
+				data-lanes = <0 1>;
+				bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
+				remote-endpoint = <&ov8856_front_ep>;
+			};
+		};
+	};
+};
+
+&cci1 {
+	status = "okay";
+};
+
+&cci1_i2c1 {
+	camera_front: camera@10 {
+		compatible = "ovti,ov8856";
+		reg = <0x10>;
+
+		avdd-supply = <&vreg_l5p>;
+		dovdd-supply = <&vreg_l1c_1p8>;
+		dvdd-supply = <&vreg_l1p>;
+
+		clocks = <&camcc CAM_CC_MCLK3_CLK>;
+		clock-names = "xvclk";
+		assigned-clocks = <&camcc CAM_CC_MCLK3_CLK>;
+		assigned-clock-rates = <19200000>;
+
+		reset-gpios = <&tlmm 109 GPIO_ACTIVE_LOW>;
+
+		pinctrl-0 = <&cam_mclk3_default &camera_front_active>;
+		pinctrl-names = "default";
+
+		orientation = <0>; /* Front facing */
+		rotation = <270>;
+
+		port {
+			ov8856_front_ep: endpoint {
+				data-lanes = <1 2>;
+				link-frequencies = /bits/ 64
+					<720000000 360000000>;
+				remote-endpoint = <&csiphy4_ep>;
+			};
+		};
+	};
+};
+
 &cdsp {
 	firmware-name = "qcom/sm8250/xiaomi/elish/cdsp.mbn";
 	status = "okay";
@@ -891,6 +947,13 @@ pm8008_reset_default: pm8008-reset-default-state {
 		bias-pull-up;
 	};
 
+	camera_front_active: camera-front-active-state {
+		pins = "gpio109";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	wlan_en_state: wlan-default-state {
 		pins = "gpio20";
 		function = "gpio";
-- 
2.53.0