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authorAndrzej Hajda <a.hajda@samsung.com>2014-03-25 13:10:34 +0100
committerInki Dae <daeinki@gmail.com>2014-04-04 21:24:48 +0900
commit88072c39edff2f6e171995e77d1ebeee8e7017d9 (patch)
treefbffeb0ce42b6e7114341dfaee94e3e820978cca /Documentation/devicetree/bindings/panel
parent86f05ae826aa1f9424f8e80b822f119e7234641e (diff)
panel/ld9040: add DT bindings
The patch adds bindings for ld9040 panel. Bindings describe panel resources, boot delays, display timings and physical size. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'Documentation/devicetree/bindings/panel')
-rw-r--r--Documentation/devicetree/bindings/panel/samsung,ld9040.txt66
1 files changed, 66 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/panel/samsung,ld9040.txt b/Documentation/devicetree/bindings/panel/samsung,ld9040.txt
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+Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus
+
+Required properties:
+ - compatible: "samsung,ld9040"
+ - reg: address of the panel on SPI bus
+ - vdd3-supply: core voltage supply
+ - vci-supply: voltage supply for analog circuits
+ - reset-gpios: a GPIO spec for the reset pin
+ - display-timings: timings for the connected panel according to [1]
+
+The panel must obey rules for SPI slave device specified in document [2].
+
+Optional properties:
+ - power-on-delay: delay after turning regulators on [ms]
+ - reset-delay: delay after reset sequence [ms]
+ - panel-width-mm: physical panel width [mm]
+ - panel-height-mm: physical panel height [mm]
+
+The device node can contain one 'port' child node with one child
+'endpoint' node, according to the bindings defined in [3]. This
+node should describe panel's video bus.
+
+[1]: Documentation/devicetree/bindings/video/display-timing.txt
+[2]: Documentation/devicetree/bindings/spi/spi-bus.txt
+[3]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+
+ lcd@0 {
+ compatible = "samsung,ld9040";
+ reg = <0>;
+ vdd3-supply = <&ldo7_reg>;
+ vci-supply = <&ldo17_reg>;
+ reset-gpios = <&gpy4 5 0>;
+ spi-max-frequency = <1200000>;
+ spi-cpol;
+ spi-cpha;
+ power-on-delay = <10>;
+ reset-delay = <10>;
+ panel-width-mm = <90>;
+ panel-height-mm = <154>;
+
+ display-timings {
+ timing {
+ clock-frequency = <23492370>;
+ hactive = <480>;
+ vactive = <800>;
+ hback-porch = <16>;
+ hfront-porch = <16>;
+ vback-porch = <2>;
+ vfront-porch = <28>;
+ hsync-len = <2>;
+ vsync-len = <1>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ de-active = <0>;
+ pixelclk-active = <0>;
+ };
+ };
+
+ port {
+ lcd_ep: endpoint {
+ remote-endpoint = <&fimd_dpi_ep>;
+ };
+ };
+ };

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