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ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm

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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>
This commit is contained in:
Philip Avinash 2013-06-06 15:52:38 +02:00 committed by Benoit Cousson
parent 0a7486c93e
commit 6993fd01eb
1 changed files with 23 additions and 0 deletions
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23
arch/arm/boot/dts/am335x-evm.dts
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@ -91,6 +91,12 @@
0x9c (PIN_OUTPUT | MUX_MODE0) /* gpmc_be0n_cle.gpmc_be0n_cle */
>;
};
ecap0_pins: backlight_pins {
pinctrl-single,pins = <
0x164 0x0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
>;
};
};
ocp {
@ -163,6 +169,16 @@
status = "okay";
};
epwmss0: epwmss@48300000 {
status = "okay";
ecap0: ecap@48300100 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&ecap0_pins>;
};
};
gpmc: gpmc@50000000 {
status = "okay";
pinctrl-names = "default";
@ -299,6 +315,13 @@
gpio-key,wakeup;
};
};
backlight {
compatible = "pwm-backlight";
pwms = <&ecap0 0 50000 0>;
brightness-levels = <0 51 53 56 62 75 101 152 255>;
default-brightness-level = <8>;
};
};
#include "tps65910.dtsi"