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Commit f86f7bcd authored by Narender Ankam's avatar Narender Ankam
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msm: mdss: rgb: adding rgb interface driver for qcs405 



Add mdss_rgb driver to drive RGB parallel interface
required on qcs405 target. Also added an SPI controller
to transfer panel on/off sequences to RGB panel.

Change-Id: I5479a05aa9e0fbc922dabed9a4b85cec1fa167d3
Signed-off-by: default avatarRashi Bindra <rbindra@codeaurora.org>
Signed-off-by: default avatarNarender Ankam <nankam@codeaurora.org>
parent 4b54d9aa

Documentation/devicetree/bindings/fb/mdss-rgb.txt

0 → 100644
+153 −0
Original line number Diff line number Diff line 
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>;

	}

drivers/video/fbdev/msm/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -91,6 +91,15 @@ config FB_MSM_MDSS_SPI_PANEL 
	the current max fps only reach to ~30 fps with 240x240 resolution, and

	limited by MDP hardware architecture only supply GPU compostition.



config FB_MSM_MDSS_RGB_PANEL

	depends on FB_MSM_MDSS

	bool "Support RGB panel feature"

	---help---

	The MDSS RGB Panel provides support for transmitting

	MDSS frame buffer data over RGB parallel interface

	connected to RGB panel. Panel on/off sequence commands

	are sent to RGB Panel through an SPI interface.



config FB_MSM_MDSS_MHL3

	depends on FB_MSM_MDSS_HDMI_PANEL

	bool "MHL3 SII8620 Support"

drivers/video/fbdev/msm/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -69,6 +69,8 @@ obj-$(CONFIG_FB_MSM_MDSS_SPI_PANEL) += mdss_spi_display.o 
obj-$(CONFIG_FB_MSM_MDSS_SPI_PANEL) += mdss_spi_client.o

obj-$(CONFIG_FB_MSM_MDSS_SPI_PANEL) += mdss_spi_panel.o



obj-$(CONFIG_FB_MSM_MDSS_RGB_PANEL) += mdss_rgb.o mdss_rgb_panel.o



obj-$(CONFIG_FB_MSM_MDSS_WRITEBACK) += mdss_wb.o



mdss-qpic-objs := mdss_qpic.o mdss_fb.o mdss_qpic_panel.o mdss_sync.o

drivers/video/fbdev/msm/mdss_dsi.c

+2 −2
Original line number Diff line number Diff line
@@ -477,7 +477,7 @@ int mdss_dsi_panel_power_ctrl(struct mdss_panel_data *pdata, 
	return ret;

}



static void mdss_dsi_put_dt_vreg_data(struct device *dev,

void mdss_dsi_put_dt_vreg_data(struct device *dev,

	struct dss_module_power *module_power)

{

	if (!module_power) {
@@ -492,7 +492,7 @@ static void mdss_dsi_put_dt_vreg_data(struct device *dev, 
	module_power->num_vreg = 0;

}



static int mdss_dsi_get_dt_vreg_data(struct device *dev,

int mdss_dsi_get_dt_vreg_data(struct device *dev,

	struct device_node *of_node, struct dss_module_power *mp,

	enum dsi_pm_type module)

{

drivers/video/fbdev/msm/mdss_dsi.h

+5 −0
Original line number Diff line number Diff line
@@ -681,6 +681,11 @@ void mdss_dsi_set_reg(struct mdss_dsi_ctrl_pdata *ctrl, int off, 
	u32 mask, u32 val);

int mdss_dsi_phy_pll_reset_status(struct mdss_dsi_ctrl_pdata *ctrl);

int mdss_dsi_panel_power_ctrl(struct mdss_panel_data *pdata, int power_state);

int mdss_dsi_get_dt_vreg_data(struct device *dev,

	struct device_node *of_node, struct dss_module_power *mp,

	enum dsi_pm_type module);

void mdss_dsi_put_dt_vreg_data(struct device *dev,

		struct dss_module_power *module_power);



static inline const char *__mdss_dsi_pm_name(enum dsi_pm_type module)

{