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Message-ID: <6587991.MejnFpP876@diego>
Date: Wed, 27 Aug 2014 23:33:48 +0200
From: Heiko Stübner <heiko@...ech.de>
To: Doug Anderson <dianders@...omium.org>
Cc: Thierry Reding <thierry.reding@...il.com>,
Caesar Wang <caesar.wang@...k-chips.com>,
Sonny Rao <sonnyrao@...omium.org>, olof@...om.net,
Eddie Cai <eddie.cai@...k-chips.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
linux@....linux.org.uk, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 3/3] ARM: dts: Enable PWM backlight on rk3288-evb
Am Montag, 25. August 2014, 15:59:27 schrieb Doug Anderson:
> PWM0 is the PWM associated with the LCD backlight. Enable it.
>
> Signed-off-by: Doug Anderson <dianders@...omium.org>
Applied to my v3.18-next/dts branch.
> ---
> Changes in v5: None
> Changes in v4: None
> Changes in v3:
> - Fix space to tab in 2 places in DTS.
> - Make sure PWM is upper case in prose.
>
> arch/arm/boot/dts/rk3288-evb.dtsi | 53
> +++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+)
>
> diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi
> b/arch/arm/boot/dts/rk3288-evb.dtsi index 2964370..98b69d0 100644
> --- a/arch/arm/boot/dts/rk3288-evb.dtsi
> +++ b/arch/arm/boot/dts/rk3288-evb.dtsi
> @@ -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>;
--
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