This patch add support for Bananapi S070WV20-CT16 DSI panel to
BPI-M2U board.

DSI panel connected via board DSI port with,
- DCDC1 as VCC-DSI supply
- PH18 gpio for lcd enable pin
- PD17 gpio for lcd reset pin
- PD16 gpio for backlight enable pin

Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
 .../boot/dts/sun8i-r40-bananapi-m2-ultra.dts  | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts 
b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
index c488aaacbd68..5f39317b783e 100644
--- a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
+++ b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
@@ -45,6 +45,7 @@
 #include "sun8i-r40.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
        model = "Banana Pi BPI-M2-Ultra";
@@ -55,6 +56,14 @@
                serial0 = &uart0;
        };
 
+       backlight: backlight {
+               compatible = "pwm-backlight";
+               pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
+               brightness-levels = <1 2 4 8 16 32 64 128 255>;
+               default-brightness-level = <8>;
+               enable-gpios = <&pio 7 16 GPIO_ACTIVE_HIGH>; /* LCD-BL-EN: PH16 
*/
+       };
+
        chosen {
                stdout-path = "serial0:115200n8";
        };
@@ -117,6 +126,23 @@
        status = "okay";
 };
 
+&dphy {
+       status = "okay";
+};
+
+&dsi {
+       vcc-dsi-supply = <&reg_dcdc1>;          /* VCC-DSI */
+       status = "okay";
+
+       panel@0 {
+               compatible = "bananapi,s070wv20-ct16-icn6211";
+               reg = <0>;
+               enable-gpio = <&pio 7 18 GPIO_ACTIVE_HIGH>; /* LCD-PWR-EN: PH18 
*/
+               reset-gpios = <&pio 7 17 GPIO_ACTIVE_HIGH>; /* LCD-RST: PH17 */
+               backlight = <&backlight>;
+       };
+};
+
 &ehci1 {
        status = "okay";
 };
@@ -203,6 +229,12 @@
        pinctrl-0 = <&clk_out_a_pin>;
 };
 
+&pwm {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pwm_pins>;
+       status = "okay";
+};
+
 &reg_aldo2 {
        regulator-always-on;
        regulator-min-microvolt = <2500000>;
@@ -290,6 +322,10 @@
        regulator-name = "vdd1v2-sata";
 };
 
+&tcon_lcd0 {
+       status = "okay";
+};
+
 &tcon_tv0 {
        status = "okay";
 };
-- 
2.18.0.321.gffc6fa0e3

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