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Subject[PATCH v8 13/15] arm64: dts: allwinner: a64-amarula-relic: Add Techstar TS8550B MIPI-DSI panel
Date
Amarula A64-Relic board by default bound with Techstar TS8550B
MIPI-DSI panel, add support for it.

DSI panel connected via board DSI port with,
- DLDO2 as VCC supply
- DLDO2 as IOVCC supply
- DLDO1 as VCC-DSI supply
- PD24 gpio for reset pin
- PD23 gpio for backlight enable pin

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
.../allwinner/sun50i-a64-amarula-relic.dts | 39 +++++++++++++++++++
1 file changed, 39 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
index 6cb2b7f0c817..f85ed0b99942 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
@@ -9,6 +9,7 @@
#include "sun50i-a64.dtsi"

#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>

/ {
model = "Amarula A64-Relic";
@@ -18,6 +19,14 @@
serial0 = &uart0;
};

+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
+ brightness-levels = <1 2 4 8 16 32 64 128 512>;
+ default-brightness-level = <2>;
+ enable-gpios = <&pio 3 23 GPIO_ACTIVE_HIGH>; /* LCD-BL-EN: PD23 */
+ };
+
chosen {
stdout-path = "serial0:115200n8";
};
@@ -30,6 +39,30 @@
};
};

+&de {
+ status = "okay";
+};
+
+&dphy {
+ status = "okay";
+};
+
+&dsi {
+ vcc-dsi-supply = <&reg_dldo1>; /* VCC3V3-DSI */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ panel@0 {
+ compatible = "techstar,ts8550b", "sitronix,st7701";
+ reg = <0>;
+ VCC-supply = <&reg_dldo2>; /* VCC-LCD */
+ IOVCC-supply = <&reg_dldo2>; /* VCC-LCD */
+ reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* LCD-RST: PD24 */
+ backlight = <&backlight>;
+ };
+};
+
&ehci0 {
status = "okay";
};
@@ -72,6 +105,12 @@
status = "okay";
};

+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm_pin>;
+ status = "okay";
+};
+
&r_rsb {
status = "okay";

--
2.18.0.321.gffc6fa0e3
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