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authorPhilip Avinash <avinashphilip@ti.com>2013-06-06 09:52:38 -0400
committerBenoit Cousson <benoit.cousson@linaro.org>2013-06-18 19:53:47 -0400
commit6993fd01ebf2985e0c67088b47559bc513f2840b (patch)
tree8053e91d5fa507c2b2340ac970ac030b621ce465 /arch/arm/boot/dts
parent0a7486c93ed3355efee8e7e10ca370c2d83d8df9 (diff)
ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm
PWM output from ecap0 uses as backlight source. Also adds low threshold value to have a uniform divisions in brightness-levels scales. Signed-off-by: Philip Avinash <avinashphilip@ti.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>
Diffstat (limited to 'arch/arm/boot/dts')
-rw-r--r--arch/arm/boot/dts/am335x-evm.dts23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 2c5324703c7b..a150d0441b5e 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -91,6 +91,12 @@
91 0x9c (PIN_OUTPUT | MUX_MODE0) /* gpmc_be0n_cle.gpmc_be0n_cle */ 91 0x9c (PIN_OUTPUT | MUX_MODE0) /* gpmc_be0n_cle.gpmc_be0n_cle */
92 >; 92 >;
93 }; 93 };
94
95 ecap0_pins: backlight_pins {
96 pinctrl-single,pins = <
97 0x164 0x0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
98 >;
99 };
94 }; 100 };
95 101
96 ocp { 102 ocp {
@@ -163,6 +169,16 @@
163 status = "okay"; 169 status = "okay";
164 }; 170 };
165 171
172 epwmss0: epwmss@48300000 {
173 status = "okay";
174
175 ecap0: ecap@48300100 {
176 status = "okay";
177 pinctrl-names = "default";
178 pinctrl-0 = <&ecap0_pins>;
179 };
180 };
181
166 gpmc: gpmc@50000000 { 182 gpmc: gpmc@50000000 {
167 status = "okay"; 183 status = "okay";
168 pinctrl-names = "default"; 184 pinctrl-names = "default";
@@ -299,6 +315,13 @@
299 gpio-key,wakeup; 315 gpio-key,wakeup;
300 }; 316 };
301 }; 317 };
318
319 backlight {
320 compatible = "pwm-backlight";
321 pwms = <&ecap0 0 50000 0>;
322 brightness-levels = <0 51 53 56 62 75 101 152 255>;
323 default-brightness-level = <8>;
324 };
302}; 325};
303 326
304#include "tps65910.dtsi" 327#include "tps65910.dtsi"