Add the necessary dss configuration to drive the startek lcd on CompuLab
sbc-t43 single board computer.
Signed-off-by: Nikita Kiryanov <nikita@xxxxxxxxxxxxxx>
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: Igor Grinberg <grinberg@xxxxxxxxxxxxxx>
Cc: Dmitry Lifshitz <lifshitz@xxxxxxxxxxxxxx>
Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/am437x-sbc-t43.dts | 65 ++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
diff --git a/arch/arm/boot/dts/am437x-sbc-t43.dts b/arch/arm/boot/dts/am437x-sbc-t43.dts
index b2c42d9..0758094 100644
--- a/arch/arm/boot/dts/am437x-sbc-t43.dts
+++ b/arch/arm/boot/dts/am437x-sbc-t43.dts
@@ -12,6 +12,10 @@
/ {
model = "CompuLab CM-T43 on SB-SOM-T43";
compatible = "compulab,am437x-sbc-t43","compulab,am437x-cm-t43","ti,am4372","ti,am43";
+
+ aliases {
+ display0 = &lcd0;
+ };
};
&am43xx_pinmux {
@@ -28,6 +32,41 @@
>;
};
+ dss_pinctrl_default: dss_pinctrl_default {
+ pinctrl-single,pins = <
+ AM4372_IOPAD(0x9b0, PIN_OUTPUT_PULLUP | MUX_MODE2) /* cam0 hd -> DSS DATA 23 */
+ AM4372_IOPAD(0x9b4, PIN_OUTPUT_PULLUP | MUX_MODE2)
+ AM4372_IOPAD(0x9b8, PIN_OUTPUT_PULLUP | MUX_MODE2)
+ AM4372_IOPAD(0x9bc, PIN_OUTPUT_PULLUP | MUX_MODE2)
+ AM4372_IOPAD(0x9c0, PIN_OUTPUT_PULLUP | MUX_MODE2)
+ AM4372_IOPAD(0x9c4, PIN_OUTPUT_PULLUP | MUX_MODE2)
+ AM4372_IOPAD(0x9c8, PIN_OUTPUT_PULLUP | MUX_MODE2)
+ AM4372_IOPAD(0x9cc, PIN_OUTPUT_PULLUP | MUX_MODE2) /* cam1 data 9 -> DSS DATA 16 */
+
+ AM4372_IOPAD(0x8a0, PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS DATA 0 */
+ AM4372_IOPAD(0x8a4, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8a8, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8ac, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8b0, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8b4, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8b8, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8bc, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8c0, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8c4, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8c8, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8cc, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8d0, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8d4, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8d8, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ AM4372_IOPAD(0x8dc, PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS DATA 15 */
+ AM4372_IOPAD(0x8e0, PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS VSYNC */
+ AM4372_IOPAD(0x8e4, PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS HSYNC */
+ AM4372_IOPAD(0x8e8, PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS PCLK */
+ AM4372_IOPAD(0x8ec, PIN_OUTPUT_PULLUP | MUX_MODE0) /* DSS AC BIAS EN */
+ AM4372_IOPAD(0xa20, PIN_OUTPUT_PULLUP | MUX_MODE7)
+ >;
+ };
+
uart0_pins_default: uart0_pins_default {
pinctrl-single,pins = <
AM4372_IOPAD(0x968, DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE0)
@@ -99,6 +138,20 @@
wp-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
};
+&dss {
+ status = "ok";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&dss_pinctrl_default>;
+
+ port {
+ dpi_lcd_out: endpoint@0 {
+ remote-endpoint = <&lcd_in>;
+ data-lines = <24>;
+ };
+ };
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_default>;
@@ -114,3 +167,15 @@
pinctrl-0 = <&usb2_phy2_default>;
};
+&lcd0 {
+ enable-gpios = <&pca9555 14 GPIO_ACTIVE_HIGH
+ &gpio4 28 GPIO_ACTIVE_HIGH>;
+
+ port {
+ lcd_in: endpoint {
+ remote-endpoint = <&dpi_lcd_out>;
+ data-lines = <24>;
+ };
+ };
+};
+
--
1.9.1
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