Qualcomm Technologies, Inc. mdss-rgb

mdss-rgb is the master RGB device which supports software RGB interface.

Required properties:
- compatible:				Must be "qcom,mdss-rgb"
- ranges:				The standard property which specifies the child address
- reg: 					Base address and length of the different register
					regions(s) required for RGB functionality.
- reg-names: 				A list of strings that map in order to the list of regs.
					"dsi_phy" - MDSS DSI PHY register region
					"dsi_phy_regulator" - MDSS DSI PHY REGULATOR region
					"mmss_misc_phys" - Register region for MMSS DSI clamps
- vdda-supply:				Phandle for vdda regulator device node.
- vddio-supply:				Phandle for vddio regulator device node.
- qcom,mdss-mdp:			pHandle that specifies the mdss-mdp device.
- qcom,mdss-fb-map:			pHandle that specifies the framebuffer to which the

- qcom,platform-reset-gpio:		Specifies the panel reset gpio.
- pinctrl-names:			List of names to assign mdss pin states defined in pinctrl device node
					Refer to pinctrl-bindings.txt
- pinctrl-<0..n>:			Lists phandles each pointing to the pin configuration node within a pin
					controller. These pin configurations are installed in the pinctrl
					device node. Refer to pinctrl-bindings.txt

- qcom,<type>-supply-entries:		A node that lists the elements of the supply used by the
					a particular "type" of RGB modulee. The module "types"
					can be "core", "ctrl", and "phy". Within the same type,
					there can be more than one instance of this binding,
					in which case the entry would be appended with the
					supply entry index.
					e.g. qcom,ctrl-supply-entry@0
					-- qcom,supply-name: name of the supply (vdd/vdda/vddio)
					-- qcom,supply-min-voltage: minimum voltage level (uV)
					-- qcom,supply-max-voltage: maximum voltage level (uV)
					-- qcom,supply-enable-load: load drawn (uA) from enabled supply
					-- qcom,supply-disable-load: load drawn (uA) from disabled supply
					-- qcom,supply-ulp-load: load drawn (uA) from supply in ultra-low power mode
					-- qcom,supply-pre-on-sleep: time to sleep (ms) before turning on
					-- qcom,supply-post-on-sleep: time to sleep (ms) after turning on
					-- qcom,supply-pre-off-sleep: time to sleep (ms) before turning off
					-- qcom,supply-post-off-sleep: time to sleep (ms) after turning off


Example:
	mdss_rgb: qcom,mdss_rgb {
		compatible = "qcom,mdss-rgb";
		#address-cells = <1>;
		#size-cells = <1>;

		ranges = <0x1a94400 0x1a94400 0x280
			0x1a94b80 0x1a94b80 0x30
			0x193e000 0x193e000 0x30>;

		reg = <0x1a94400 0x280>,
			<0x1a94b80 0x30>,
			<0x193e000 0x30>;
		reg-names = "dsi_phy",
			"dsi_phy_regulator", "mmss_misc_phys";

		gdsc-supply = <&gdsc_mdss>;
		vdda-1p2-supply = <&pms405_l4>;
		vdda-1p8-supply = <&pms405_l5>;
		vddio-supply = <&pms405_l6>;

		qcom,mdss-fb-map = <&mdss_fb0>;
		qcom,mdss-mdp = <&mdss_mdp>;

		pinctrl-names = "mdss_default", "mdss_sleep";
		pinctrl-0 = <&mdss_rgb_active &mdss_rgb_data0_active
				&mdss_rgb_data1_active &mdss_rgb_data2_active
				&mdss_rgb_data3_active &mdss_rgb_data4_active
				&mdss_rgb_data5_active &mdss_rgb_data_b0_active
				&mdss_rgb_data_b1_active &mdss_rgb_data_b2_active
				&mdss_rgb_data_b3_active &mdss_rgb_data_b4_active
				&mdss_rgb_data_b5_active &mdss_rgb_hsync_active
				&mdss_rgb_vsync_active &mdss_rgb_de_active
				&mdss_rgb_clk_active>;
		pinctrl-1 = <&mdss_rgb_suspend &mdss_rgb_data0_suspend
				&mdss_rgb_data1_suspend &mdss_rgb_data2_suspend
				&mdss_rgb_data3_suspend &mdss_rgb_data4_suspend
				&mdss_rgb_data5_suspend &mdss_rgb_data_b0_suspend
				&mdss_rgb_data_b1_suspend &mdss_rgb_data_b2_suspend
				&mdss_rgb_data_b3_suspend &mdss_rgb_data_b4_suspend
				&mdss_rgb_data_b5_suspend &mdss_rgb_hsync_suspend
				&mdss_rgb_vsync_suspend &mdss_rgb_de_suspend
				&mdss_rgb_clk_suspend>;
		qcom,platform-reset-gpio = <&tlmm 58 0>;

		qcom,core-supply-entries {
			#address-cells = <1>;
			#size-cells = <0>;

			qcom,core-supply-entry@0 {
				reg = <0>;
				qcom,supply-name = "gdsc";
				qcom,supply-min-voltage = <0>;
				qcom,supply-max-voltage = <0>;
				qcom,supply-enable-load = <0>;
				qcom,supply-disable-load = <0>;
			  };
		};

		qcom,ctrl-supply-entries {
			#address-cells = <1>;
			#size-cells = <0>;

			qcom,ctrl-supply-entry@0 {
				reg = <0>;
				qcom,supply-name = "vdda-1p2";
				qcom,supply-min-voltage = <1200000>;
				qcom,supply-max-voltage = <1200000>;
				qcom,supply-enable-load = <100000>;
				qcom,supply-disable-load = <100>;
				qcom,supply-post-on-sleep = <20>;
			};
		};

		qcom,phy-supply-entries {
			#address-cells = <1>;
			#size-cells = <0>;

			qcom,phy-supply-entry@0 {
				reg = <0>;
				qcom,supply-name = "vdda-1p8";
				qcom,supply-min-voltage = <1800000>;
				qcom,supply-max-voltage = <1800000>;
				qcom,supply-enable-load = <100000>;
				qcom,supply-disable-load = <100>;
			};
		};
	};

mdss-rgb-spi is the SPI controller for RGB device which supports control
commands communication with RGB panel.

Required properties:
- compatible:				Must be "qcom,mdss-rgb-spi"
- spi-max-frequency : Maximum SPI clocking speed of device in Hz

Optional properties:
- label: A string used to describe the controller used.
- spi-cpol : Empty property indicating device requires inverse
  clock polarity (CPOL) mode
- spi-cpha :  Empty property indicating device requires shifted
  clock phase (CPHA) mode

Example:
	mdss_rgb_spi: qcom,mdss_rgb_spi {
		compatible = "qcom,mdss-rgb-spi";
		label = "MDSS SPI QUP1 CLIENT";
		spi-max-frequency = <5000000>;
	}