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Subject[PATCH v3 24/25] [DO NOT MERGE] arm64: dts: allwinner: bananapi-m64: Bananapi S070WV20-CT16 DSI panel
Date
This patch add support for Bananapi S070WV20-CT16 DSI panel to
BPI-M64 board.

DSI panel connected via board DSI port with,
- DC1SW as AVDD supply
- DCDC1 as DVDD supply
- PD6 gpio for reset pin
- PD5 gpio for backlight enable pin
- PD7 gpio for backlight vdd supply

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- remove unit address 0
- add nodes in alphabetical order
- Use backlight instead of backlight_dsi
- add tested credit
Changes for v2:
- Use quadratic rule on pwm brightness

.../dts/allwinner/sun50i-a64-bananapi-m64.dts | 42 +++++++++++++++++++
1 file changed, 42 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 ef1c90401bb2..6cb010e3bbd9 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 +101,15 @@
};
};

+ 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 */
@@ -101,6 +120,23 @@
status = "okay";
};

+&dphy {
+ status = "okay";
+};
+
+&dsi {
+ status = "okay";
+
+ panel@0 {
+ compatible = "bananapi,s070wv20-ct16-icn6211";
+ reg = <0>;
+ avdd-supply = <&reg_dc1sw>;
+ dvdd-supply = <&reg_dldo1>;
+ reset-gpios = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* LCD-RST: PD6 */
+ backlight = <&backlight>;
+ };
+};
+
&ehci0 {
status = "okay";
};
@@ -193,6 +229,12 @@
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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