From: Doug Anderson <dianders@chromium.org>
To: Heiko Stuebner <heiko@sntech.de>,
Thierry Reding <thierry.reding@gmail.com>,
Caesar Wang <caesar.wang@rock-chips.com>
Cc: Sonny Rao <sonnyrao@chromium.org>,
olof@lixom.net, Eddie Cai <eddie.cai@rock-chips.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Doug Anderson <dianders@chromium.org>,
robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
linux@arm.linux.org.uk, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v4 4/4] ARM: dts: Enable PWM backlight on rk3288-evb
Date: Wed, 20 Aug 2014 11:54:02 -0700 [thread overview]
Message-ID: <1408560842-3746-5-git-send-email-dianders@chromium.org> (raw)
In-Reply-To: <1408560842-3746-1-git-send-email-dianders@chromium.org>
PWM0 is the PWM associated with the LCD backlight. Enable it.
Signed-off-by: Doug Anderson <dianders@chromium.org>
---
Changes in v4: None
Changes in v3:
- Fix space to tab in 2 places in DTS.
- Make sure PWM is upper case in prose.
Changes in v2: None
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>;
--
2.1.0.rc2.206.gedb03e5
prev parent reply other threads:[~2014-08-20 18:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-20 18:53 [PATCH v4 0/4] PWM changes for rk3288-evb Doug Anderson
2014-08-20 18:54 ` [PATCH v4 2/4] ARM: rockchip: rk3288: Switch to use the proper PWM IP Doug Anderson
[not found] ` <1408560842-3746-1-git-send-email-dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2014-08-20 18:53 ` [PATCH v4 1/4] pwm: rockchip: Allow polarity invert on rk3288 Doug Anderson
2014-08-20 18:54 ` [PATCH v4 3/4] ARM: dts: Add main PWM info to rk3288 Doug Anderson
2014-08-20 18:54 ` Doug Anderson [this message]
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