This adds the backlight panel, power, pwm and tcon0 device-tree bindings
required for supporting the 3.5" LCD from LeMaker on the BananaPi M1.
Signed-off-by: Paul Kocialkowski <contact@xxxxxxxx>
---
arch/arm/boot/dts/sun7i-a20-bananapi.dts | 89 ++++++++++++++++++++++++
1 file changed, 89 insertions(+)
diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
index 70dfc4ac0bb5..dd2f8bc41fae 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
@@ -48,6 +48,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pwm/pwm.h>
/ {
model = "LeMaker Banana Pi";
@@ -63,6 +64,75 @@
stdout-path = "serial0:115200n8";
};
+
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm 0 50000 0>;
+ brightness-levels = < 0 1 1 1 1 2 2 2
+ 2 3 3 3 3 4 4 4
+ 5 5 5 6 6 6 7 7
+ 8 8 8 9 9 9 10 10
+ 10 11 11 12 12 12 13 13
+ 14 14 14 15 15 16 16 17
+ 17 17 18 18 19 19 20 20
+ 21 21 21 22 22 23 23 24
+ 24 25 25 26 26 27 27 28
+ 28 29 30 30 31 31 32 32
+ 33 33 34 35 35 36 36 37
+ 38 38 39 39 40 41 41 42
+ 43 43 44 44 45 46 47 47
+ 48 49 49 50 51 51 52 53
+ 54 54 55 56 57 57 58 59
+ 60 61 61 62 63 64 65 65
+ 66 67 68 69 70 71 71 72
+ 73 74 75 76 77 78 79 80
+ 81 82 83 84 85 86 87 88
+ 89 90 91 92 93 94 95 96
+ 97 98 99 101 102 103 104 105
+ 106 108 109 110 111 112 114 115
+ 116 117 119 120 121 123 124 125
+ 127 128 129 131 132 133 135 136
+ 138 139 141 142 144 145 147 148
+ 150 151 153 154 156 157 159 161
+ 162 164 166 167 169 171 173 174
+ 176 178 180 181 183 185 187 189
+ 191 192 194 196 198 200 202 204
+ 206 208 210 212 214 216 219 221
+ 223 225 227 229 232 234 236 238
+ 241 242 244 246 248 250 253 255>;
+ default-brightness-level = <128>;
+ enable-gpios = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */
+ };
+
+ panel: panel {
+ compatible = "lemaker,bl035";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ power-supply = <&panel_power>;
+ backlight = <&backlight>;
+
+ port@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel_input: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon0_out_panel>;
+ };
+ };
+ };
+
+ panel_power: panel_power {
+ compatible = "regulator-fixed";
+ regulator-name = "panel-power";
+ regulator-min-microvolt = <10400000>;
+ regulator-max-microvolt = <10400000>;
+ gpio = <&pio 7 12 GPIO_ACTIVE_HIGH>; /* PH12 */
+ enable-active-high;
+ regulator-boot-on;
+ };
+
hdmi-connector {
compatible = "hdmi-connector";
type = "a";
@@ -275,6 +345,12 @@
};
};
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_pins_a>;
+ status = "okay";
+};
+
#include "axp209.dtsi"
®_dcdc2 {
@@ -322,6 +398,19 @@
status = "okay";
};
+&tcon0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&lcd0_rgb888_pins>;
+ status = "okay";
+};
+
+&tcon0_out {
+ tcon0_out_panel: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&panel_input>;
+ };
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
--
2.19.1
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