From: David Wu <david.wu@rock-chips.com>
Date: Tue, 15 Mar 2016 17:17:54 +0000 (+0800)
Subject: ARM64: dts: rockchip: add backlight support for rk3399-tb
X-Git-Tag: firefly_0821_release~3166
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bd7cad0698080ba35e8a7e97d9f83b5330eb340b;p=firefly-linux-kernel-4.4.55.git
ARM64: dts: rockchip: add backlight support for rk3399-tb
Change-Id: I99314db0fe7a31b4bb652749c35c738100bdf344
Signed-off-by: David Wu <david.wu@rock-chips.com>
---
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-tb.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-tb.dtsi
index 12b780e9a178..80a6bdf01965 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-tb.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-tb.dtsi
@@ -40,6 +40,7 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
+#include <dt-bindings/pwm/pwm.h>
#include "rk3399.dtsi"
/ {
@@ -73,6 +74,46 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
+
+ backlight: backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm0 0 25000 PWM_POLARITY_INVERTED>;
+ brightness-levels = <
+ 0 1 2 3 4 5 6 7
+ 8 9 10 11 12 13 14 15
+ 16 17 18 19 20 21 22 23
+ 24 25 26 27 28 29 30 31
+ 32 33 34 35 36 37 38 39
+ 40 41 42 43 44 45 46 47
+ 48 49 50 51 52 53 54 55
+ 56 57 58 59 60 61 62 63
+ 64 65 66 67 68 69 70 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 99 100 101 102 103
+ 104 105 106 107 108 109 110 111
+ 112 113 114 115 116 117 118 119
+ 120 121 122 123 124 125 126 127
+ 128 129 130 131 132 133 134 135
+ 136 137 138 139 140 141 142 143
+ 144 145 146 147 148 149 150 151
+ 152 153 154 155 156 157 158 159
+ 160 161 162 163 164 165 166 167
+ 168 169 170 171 172 173 174 175
+ 176 177 178 179 180 181 182 183
+ 184 185 186 187 188 189 190 191
+ 192 193 194 195 196 197 198 199
+ 200 201 202 203 204 205 206 207
+ 208 209 210 211 212 213 214 215
+ 216 217 218 219 220 221 222 223
+ 224 225 226 227 228 229 230 231
+ 232 233 234 235 236 237 238 239
+ 240 241 242 243 244 245 246 247
+ 248 249 250 251 252 253 254 255>;
+ default-brightness-level = <200>;
+ enable-gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
+ };
};
&i2s0 {
@@ -300,3 +341,7 @@
&usb_host1_ohci {
status = "okay";
};
+
+&pwm0 {
+ status = "okay";
+};