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Commit e4bac408 authored by Richard Genoud's avatar Richard Genoud Committed by Thierry Reding
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drm/panel: simple: Add support for Winstar WF35LTIACD 



This adds support for the Winstar Display Co. WF35LTIACD 3.5" QVGA TFT
LCD panel, which can be supported by the simple panel driver.

Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarRichard Genoud <richard.genoud@gmail.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 667eb703

Documentation/devicetree/bindings/display/panel/winstar,wf35ltiacd.txt

0 → 100644
+48 −0
Original line number Diff line number Diff line 
Winstar Display Corporation 3.5" QVGA (320x240) TFT LCD panel



Required properties:

- compatible: should be "winstar,wf35ltiacd"

- power-supply: regulator to provide the VCC supply voltage (3.3 volts)



This binding is compatible with the simple-panel binding, which is specified

in simple-panel.txt in this directory.



Example:

	backlight: backlight {

		compatible = "pwm-backlight";

		pwms = <&hlcdc_pwm 0 50000 PWM_POLARITY_INVERTED>;

		brightness-levels = <0 31 63 95 127 159 191 223 255>;

		default-brightness-level = <191>;

		power-supply = <&bl_reg>;

	};



	bl_reg: backlight_regulator {

		compatible = "regulator-fixed";

		regulator-name = "backlight-power-supply";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

	};



	panel: panel {

		compatible = "winstar,wf35ltiacd", "simple-panel";

		backlight = <&backlight>;

		power-supply = <&panel_reg>;

		#address-cells = <1>;

		#size-cells = <0>;



		port {

			#address-cells = <1>;

			#size-cells = <0>;



			panel_input: endpoint {

				remote-endpoint = <&hlcdc_panel_output>;

			};

		};

	};



	panel_reg: panel_regulator {

		compatible = "regulator-fixed";

		regulator-name = "panel-power-supply";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

	};

drivers/gpu/drm/panel/panel-simple.c

+28 −0
Original line number Diff line number Diff line
@@ -1831,6 +1831,31 @@ static const struct panel_desc urt_umsh_8596md_parallel = { 
	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,

};



static const struct drm_display_mode winstar_wf35ltiacd_mode = {

	.clock = 6410,

	.hdisplay = 320,

	.hsync_start = 320 + 20,

	.hsync_end = 320 + 20 + 30,

	.htotal = 320 + 20 + 30 + 38,

	.vdisplay = 240,

	.vsync_start = 240 + 4,

	.vsync_end = 240 + 4 + 3,

	.vtotal = 240 + 4 + 3 + 15,

	.vrefresh = 60,

	.flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,

};



static const struct panel_desc winstar_wf35ltiacd = {

	.modes = &winstar_wf35ltiacd_mode,

	.num_modes = 1,

	.bpc = 8,

	.size = {

		.width = 70,

		.height = 53,

	},

	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,

};



static const struct of_device_id platform_of_match[] = {

	{

		.compatible = "ampire,am-480272h3tmqw-t01h",
@@ -2021,6 +2046,9 @@ static const struct of_device_id platform_of_match[] = { 
	}, {

		.compatible = "urt,umsh-8596md-20t",

		.data = &urt_umsh_8596md_parallel,

	}, {

		.compatible = "winstar,wf35ltiacd",

		.data = &winstar_wf35ltiacd,

	}, {

		/* sentinel */

	}