[PATCH RFC 12/12] ARM: dts: Add camera device nodes nodes for PQ board

[Sylwester Nawrocki]

This patch adds all nodes for camera devices on example Exynos4412 SoC
based board. This is all what's required in the board dts file to enable
rear facing camera (S5C73M3 sensor).

The aliases node contains entries required for the camera processing
data path entity drivers.

The sensor nodes use standard port/remote-endpoint nodes convention.
Internal SoC links between entities are not specified this way and
are coded in the driver instead, as it seemed more reasonable.

The S5C73M3 sensor uses two control buses: I2C and SPI. There are
two, i2c_0 and spi_1 bus controller child nodes assigned to it.

Signed-off-by: Sylwester Nawrocki <s.nawrocki at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 arch/arm/boot/dts/exynos4412-slp_pq.dts |  130 +++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-slp_pq.dts b/arch/arm/boot/dts/exynos4412-slp_pq.dts
index 3a5782d..6c0cce7 100644
--- a/arch/arm/boot/dts/exynos4412-slp_pq.dts
+++ b/arch/arm/boot/dts/exynos4412-slp_pq.dts
@@ -101,6 +101,34 @@
 		};
 	};
 
+	i2c_0: i2c at 13860000 {
+		samsung,i2c-sda-delay = <100>;
+		samsung,i2c-slave-addr = <0x10>;
+		samsung,i2c-max-bus-freq = <400000>;
+		pinctrl-0 = <&i2c0_bus>;
+		status = "okay";
+
+		s5c73m3 at 3c {
+			compatible = "samsung,s5c73m3";
+			reg = <0x3c>;
+			gpios = <&gpm0 1 1>, /* ISP_STANDBY */
+				<&gpf1 3 1>; /* ISP_RESET */
+			vdd-int-supply = <&buck9_reg>;
+			vddio-cis-supply = <&ldo9_reg>;
+			vdda-supply = <&ldo17_reg>;
+			vddio-host-supply = <&ldo18_reg>;
+			vdd-af-supply = <&cam_af_reg>;
+			vdd-reg-supply = <&cam_io_reg>;
+			clock-frequency = <24000000>;
+
+			port {
+				s5c73m3_ep: endpoint {
+					remote-endpoint = <&csis0_ep>;
+				};
+			};
+		};
+	};
+
 	i2c at 13890000 {
 		samsung,i2c-sda-delay = <100>;
 		samsung,i2c-slave-addr = <0x10>;
@@ -411,6 +439,34 @@
 		enable-active-high;
 	};
 
+	cam_af_reg: voltage-regulator at 2 {
+	        compatible = "regulator-fixed";
+		regulator-name = "CAM_AF";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		gpio = <&gpm0 4 0>;
+		enable-active-high;
+	};
+
+	cam_io_reg: voltage-regulator at 3 {
+	        compatible = "regulator-fixed";
+		regulator-name = "CAM_SENSOR_A";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		gpio = <&gpm0 2 0>;
+		enable-active-high;
+	};
+
+	cam_isp_core_reg: voltage-regulator at 4 {
+	        compatible = "regulator-fixed";
+		regulator-name = "CAM_ISP_CORE_1.2V_EN";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		gpio = <&gpm0 3 0>;
+		enable-active-high;
+		regulator-always-on;
+	};
+
 	fimd0_lcd: panel {
 		compatible = "s6e8ax0";
 		reset-gpio = <&gpy4 5 0>;
@@ -462,4 +518,78 @@
 		vusb_d-supply = <&ldo15_reg>;
 		vusb_a-supply = <&ldo12_reg>;
 	};
+
+	spi_1: spi at 13930000 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&spi1_bus>;
+		status = "okay";
+
+		s5c73m3_spi: s5c73m3 {
+			compatible = "samsung,s5c73m3";
+			spi-max-frequency = <50000000>;
+			reg = <0>;
+			controller-data {
+				cs-gpio = <&gpb 5 0>;
+				samsung,spi-feedback-delay = <2>;
+			};
+		};
+	};
+
+	camera {
+		compatible = "samsung,fimc", "simple-bus";
+		status = "okay";
+
+		pinctrl-names = "default", "inactive";
+		pinctrl-0 = <&cam_port_a_clk_active>;
+		pinctrl-1 = <&cam_port_a_clk_idle>;
+
+		fimc_0: fimc at 11800000 {
+			status = "okay";
+		};
+
+		fimc_1: fimc at 11810000 {
+			status = "okay";
+		};
+
+		fimc_2: fimc at 11820000 {
+			status = "okay";
+		};
+
+		fimc_3: fimc at 11830000 {
+			status = "okay";
+		};
+
+		csis_0: csis at 11880000 {
+			status = "okay";
+			vddcore-supply = <&ldo8_reg>;
+			vddio-supply = <&ldo10_reg>;
+			clock-frequency = <160000000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port {
+				reg = <2>;  /* camera port C  */
+				csis0_ep: endpoint {
+					remote-endpoint = <&s5c73m3_ep>;
+					data-lanes = <1>, <2>, <3>, <4>;
+					samsung,csis-hs-settle = <12>;
+				};
+			};
+		};
+
+		csis_1: csis at 11890000 {
+			vddcore-supply = <&ldo8_reg>;
+			vddio-supply = <&ldo10_reg>;
+			samsung,csis-hs-settle = <18>;
+			data-lanes = <1>;
+		};
+
+		fimc_lite_0: fimc_lite at 12390000 {
+			status = "okay";
+		};
+
+		fimc_lite_1: fimc_lite at 123a0000 {
+			status = "okay";
+		};
+	};
 };
-- 
1.7.9.5