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ARM: dts: omap3logic: Add PWM-Backlight 

The backlight pin is shared with Timer 10 PWM.  This patch allows the
pwm_bl driver to enable the pwm run by this timer to dim the backlight.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Adam Ford 2016-02-17 18:30:12 -06:00 committed by Tony Lindgren
parent 05cf1e030b
commit 730d7dcf03
1 changed files with 20 additions and 6 deletions
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26
arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
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@ -71,6 +71,15 @@
linux,default-trigger = "none";
};
};
pwm10: dmtimer-pwm@10 {
compatible = "ti,omap-dmtimer-pwm";
pinctrl-names = "default";
pinctrl-0 = <&pwm_pins>;
ti,timers = <&timer10>;
#pwm-cells = <3>;
};
};
&vaux1 {
@ -168,13 +177,13 @@
};
bl: backlight {
compatible = "gpio-backlight";
compatible = "pwm-backlight";
pinctrl-names = "default";
pinctrl-0 = <&backlight_pins>;
gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>, /* gpio_154 */
<&gpio2 24 GPIO_ACTIVE_HIGH>; /* gpio_56 */
default-on;
pwms = <&pwm10 0 5000000 0>;
brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
default-brightness-level = <7>;
enable-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>; /* gpio_154 */
};
};
@ -196,6 +205,12 @@
>;
};
pwm_pins: pinmux_pwm_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x20B8, PIN_OUTPUT | PIN_OFF_OUTPUT_LOW | MUX_MODE3) /* gpmc_ncs5.gpt_10_pwm_evt */
>;
};
led_pins: pinmux_led_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x21d8, PIN_OUTPUT | MUX_MODE4) /* gpio_179 */
@ -222,7 +237,6 @@
backlight_pins: pinmux_backlight_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x20B8, PIN_OUTPUT | PIN_OFF_OUTPUT_LOW | MUX_MODE4) /* gpmc_ncs5.gpio_56 */
OMAP3_CORE1_IOPAD(0x2188, PIN_OUTPUT | PIN_OFF_OUTPUT_LOW | MUX_MODE4) /* mcbsp4_dx.gpio_154 */
>;
};