[PATCH v7 23/23] arm64: dts: allwinner: a64-amarula-relic: Add Techstar TS8550B MIPI-DSI panel

[Jagan Teki]

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 <ja...@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 df0de0772d6b..a5a0a650b589 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";
        };
@@ -83,6 +92,30 @@
        };
 };
 
+&de {
+       status = "okay";
+};
+
+&dphy {
+       status = "okay";
+};
+
+&dsi {
+       vcc-dsi-supply = <&reg_dldo1>;
+       #address-cells = <1>;
+       #size-cells = <0>;
+       status = "okay";
+
+       panel@0 {
+               compatible = "techstar,ts8550b", "sitronix,st7701";
+               reg = <0>;
+               VCC-supply = <&reg_dldo2>;
+               IOVCC-supply = <&reg_dldo2>;
+               reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* LCD-RST: PD24 */
+               backlight = <&backlight>;
+       };
+};
+
 &ehci0 {
        status = "okay";
 };
@@ -160,6 +193,12 @@
        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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