ARM: dts: am57xx: sbc-am57x: add LCD support

Startek-kd050c 800x480 LCD panel timings are described in
compulab-sb-som.dtsi.

Add appropriate DT endpoints to connect DPI output and LCD.

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am57xx-sbc-am57x.dts b/arch/arm/boot/dts/am57xx-sbc-am57x.dts
index edce6c6..8e4c0fd 100644 (file)
--- a/arch/arm/boot/dts/am57xx-sbc-am57x.dts
+++ b/arch/arm/boot/dts/am57xx-sbc-am57x.dts
@@ -15,6 +15,10 @@
 / {
        model = "CompuLab CL-SOM-AM57x on SB-SOM-AM57x";
        compatible = "compulab,sbc-am57x", "compulab,cl-som-am57x", "ti,am5728", "ti,dra742", "ti,dra74", "ti,dra7";
+
+       aliases {
+               display0 = &lcd0;
+       };
 };
 
 &dra7_pmx_core {
@@ -50,6 +54,12 @@
                        DRA7XX_CORE_IOPAD(0x36b8, PIN_INPUT| MUX_MODE10)        /* mcasp1_axr1.i2c5_scl */
                >;
        };
+
+       lcd_pins_default: lcd_pins_default {
+               pinctrl-single,pins = <
+                       DRA7XX_CORE_IOPAD(0x3564, PIN_OUTPUT | MUX_MODE14)      /* vin2a_vsync0.gpio4_0 */
+               >;
+       };
 };
 
 &uart3 {
@@ -97,3 +107,31 @@
                #gpio-cells = <2>;
        };
 };
+
+&dss {
+       status = "ok";
+
+       vdda_video-supply = <&ldoln_reg>;
+
+       port {
+               dpi_lcd_out: endpoint@0 {
+                       remote-endpoint = <&lcd_in>;
+                       data-lines = <24>;
+               };
+       };
+};
+
+&lcd0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&lcd_pins_default>;
+
+       enable-gpios = <&pca9555 14 GPIO_ACTIVE_HIGH
+                       &gpio4 0 GPIO_ACTIVE_HIGH>;
+
+       port {
+               lcd_in: endpoint {
+                       remote-endpoint = <&dpi_lcd_out>;
+                       data-lines = <24>;
+               };
+       };
+};