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>
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1 changed files with 23 additions and 0 deletions
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@ -91,6 +91,12 @@
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0x9c (PIN_OUTPUT | MUX_MODE0) /* gpmc_be0n_cle.gpmc_be0n_cle */
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0x9c (PIN_OUTPUT | MUX_MODE0) /* gpmc_be0n_cle.gpmc_be0n_cle */
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>;
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>;
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};
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};
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ecap0_pins: backlight_pins {
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pinctrl-single,pins = <
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0x164 0x0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
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>;
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};
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};
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};
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ocp {
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ocp {
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@ -163,6 +169,16 @@
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status = "okay";
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status = "okay";
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};
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};
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epwmss0: epwmss@48300000 {
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status = "okay";
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ecap0: ecap@48300100 {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&ecap0_pins>;
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};
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};
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gpmc: gpmc@50000000 {
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gpmc: gpmc@50000000 {
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status = "okay";
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status = "okay";
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pinctrl-names = "default";
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pinctrl-names = "default";
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@ -299,6 +315,13 @@
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gpio-key,wakeup;
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gpio-key,wakeup;
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};
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};
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};
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};
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backlight {
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compatible = "pwm-backlight";
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pwms = <&ecap0 0 50000 0>;
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brightness-levels = <0 51 53 56 62 75 101 152 255>;
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default-brightness-level = <8>;
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};
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};
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};
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#include "tps65910.dtsi"
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#include "tps65910.dtsi"
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