@@ -45,6 +45,7 @@
#include "sun8i-a83t.dtsi"
#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
/ {
model = "TBS A711 Tablet";
@@ -59,6 +60,44 @@
stdout-path = "serial0:115200n8";
};
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
+ enable-gpios = <&pio 3 29 GPIO_ACTIVE_HIGH>;
+
+ brightness-levels = <0 1 2 4 8 16 32 64 128 255>;
+ default-brightness-level = <9>;
+ };
+
+ panel {
+ compatible = "tbs,a711-panel", "panel-lvds";
+ backlight = <&backlight>;
+ power-supply = <®_sw>;
+
+ width-mm = <153>;
+ height-mm = <90>;
+ data-mapping = "vesa-24";
+
+ panel-timing {
+ /* 1024x600 @60Hz */
+ clock-frequency = <52000000>;
+ hactive = <1024>;
+ vactive = <600>;
+ hsync-len = <20>;
+ hfront-porch = <180>;
+ hback-porch = <160>;
+ vfront-porch = <12>;
+ vback-porch = <23>;
+ vsync-len = <5>;
+ };
+
+ port {
+ panel_input: endpoint {
+ remote-endpoint = <&tcon0_out_lcd>;
+ };
+ };
+ };
+
reg_vbat: reg-vbat {
compatible = "regulator-fixed";
regulator-name = "vbat";
@@ -89,6 +128,10 @@
};
};
+&de {
+ status = "okay";
+};
+
/*
* An USB-2 hub is connected here, which also means we don't need to
* enable the OHCI controller.
@@ -144,6 +187,12 @@
status = "okay";
};
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm_pin>;
+ status = "okay";
+};
+
&r_rsb {
status = "okay";
@@ -324,6 +373,19 @@
regulator-name = "vcc-lcd";
};
+&tcon0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&lcd_lvds_pins>;
+ status = "okay";
+};
+
+&tcon0_out {
+ tcon0_out_lcd: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&panel_input>;
+ };
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pb_pins>;
The A711 has 1024x600 LVDS panel, with a PWM-based backlight. Add it to our DT. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> --- arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 62 ++++++++++++++++++++++++- 1 file changed, 62 insertions(+) -- git-series 0.9.1