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Commit 0541f94f authored by Doug Anderson's avatar Doug Anderson Committed by Heiko Stuebner
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ARM: dts: Enable PWM backlight on rk3288-evb 



PWM0 is the PWM associated with the LCD backlight.  Enable it.

Signed-off-by: default avatarDoug Anderson <dianders@chromium.org>
Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent df542df3

arch/arm/boot/dts/rk3288-evb.dtsi

+53 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
 * GNU General Public License for more details.

 */



#include <dt-bindings/pwm/pwm.h>

#include "rk3288.dtsi"



/ {
@@ -17,6 +18,48 @@ 
		reg = <0x0 0x80000000>;

	};



	backlight {

		compatible = "pwm-backlight";

		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 = <128>;

		enable-gpios = <&gpio7 2 GPIO_ACTIVE_HIGH>;

		pinctrl-names = "default";

		pinctrl-0 = <&bl_en>;

		pwms = <&pwm0 0 1000000 PWM_POLARITY_INVERTED>;

	};



	gpio-keys {

		compatible = "gpio-keys";

		#address-cells = <1>;
@@ -81,6 +124,10 @@ 
	status = "okay";

};



&pwm0 {

	status = "okay";

};



&uart0 {

	status = "okay";

};
@@ -102,6 +149,12 @@ 
};



&pinctrl {

	backlight {

		bl_en: bl-en {

			rockchip,pins = <7 2 RK_FUNC_GPIO &pcfg_pull_none>;

		};

	};



	buttons {

		pwrbtn: pwrbtn {

			rockchip,pins = <0 5 RK_FUNC_GPIO &pcfg_pull_up>;