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 = <®_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 = <®_dc1sw>; + dvdd-supply = <®_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";