[PATCH 6/6] arm64: dts: allwinner: bananapi-m64: Enable S070WV20-CT16 DSI panel

[Jagan Teki]

This patch add support for Bananapi S070WV20-CT16 DSI panel to
BPI-M64 board.

Bananapi S070WV20-CT16 is a pure RGB output panel with ICN6211 DSI/RGB
convertor bridge, so enable bridge along with associated panel.

DSI panel connected via board DSI port with,
- DLDO1 as VCC-DSI supply
- PD6 gpio for reset pin
- PD5 gpio for backlight enable pin
- PD7 gpio for backlight vdd supply

Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
 .../dts/allwinner/sun50i-a64-bananapi-m64.dts | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts 
b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
index 7793ebb5d2b8..f31083aa4521 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
@@ -45,6 +45,7 @@
 #include "sun50i-a64.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
        model = "BananaPi-M64";
@@ -56,6 +57,15 @@
                serial1 = &uart1;
        };
 
+       backlight: backlight {
+               compatible = "pwm-backlight";
+               pwms = <&r_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 5 GPIO_ACTIVE_HIGH>; /* LCD-BL-EN: PD5 */
+               power-supply = <&reg_vdd_backlight>;
+       };
+
        chosen {
                stdout-path = "serial0:115200n8";
        };
@@ -91,6 +101,26 @@
                };
        };
 
+       panel-connector {
+               compatible = "bananapi,s070wv20-ct16", "simple-panel";
+
+               port {
+                       backlight = <&backlight>;
+                       panel_ep: endpoint {
+                               remote-endpoint = <&bridge_out_ep>;
+                       };
+               };
+       };
+
+       reg_vdd_backlight: vdd-backlight {
+               compatible = "regulator-fixed";
+               regulator-name = "vdd-backlight";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               gpio = <&pio 3 7 GPIO_ACTIVE_HIGH>; /* LCD-PWR-EN: PD7 */
+               enable-active-high;
+       };
+
        wifi_pwrseq: wifi_pwrseq {
                compatible = "mmc-pwrseq-simple";
                reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
@@ -116,6 +146,33 @@
        status = "okay";
 };
 
+&dphy {
+       status = "okay";
+};
+
+&dsi {
+       vcc-dsi-supply = <&reg_dldo1>;          /* VCC3V3-DSI */
+       status = "okay";
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       bridge@0 {
+               compatible = "bananapi,icn6211", "chipone, icn6211";
+               reg = <0>;
+               reset-gpios = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* LCD-RST: PD6 */
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               port@1 {
+                       reg = <1>;
+
+                       bridge_out_ep: endpoint {
+                               remote-endpoint = <&panel_ep>;
+                       };
+               };
+       };
+};
+
 &ehci0 {
        status = "okay";
 };
@@ -208,6 +265,12 @@
        status = "okay";
 };
 
+&r_pwm {
+       pinctrl-names = "default";
+       pinctrl-0 = <&r_pwm_pin>;
+       status = "okay";
+};
+
 &r_rsb {
        status = "okay";
 
-- 
2.18.0.321.gffc6fa0e3

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