diff options
| author | Enric Balletbo i Serra <enric.balletbo@collabora.com> | 2018-06-06 18:54:06 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2018-07-03 10:14:31 +0300 |
| commit | 7c1280267ac0e17df3f1d450cc9c5612a5aba54d (patch) | |
| tree | 1151c35e0f6f5eec2a9a7bdf06e55ce2acdd5f86 /arch/arm/boot/dts/am335x-sl50.dts | |
| parent | e40c7f75c9bc81a19c3f927769e42fd974fccaa2 (diff) | |
| download | linux-7c1280267ac0e17df3f1d450cc9c5612a5aba54d.tar.xz | |
ARM: dts: am335x-sl50: update backlight nodes
This patch updates the backlight nodes to improve the support and describe
better how hardware is done. The changes done were:
* Use PWM_POLARITY_INVERTED instead of the hardcoded number.
* Add pinctrl configuration.
* Add the enable gpio definition.
* Add the power supply definition.
* Add more brightness levels.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/am335x-sl50.dts')
| -rw-r--r-- | arch/arm/boot/dts/am335x-sl50.dts | 61 |
1 files changed, 55 insertions, 6 deletions
diff --git a/arch/arm/boot/dts/am335x-sl50.dts b/arch/arm/boot/dts/am335x-sl50.dts index 1bcc60424ecd..dedf54d358ae 100644 --- a/arch/arm/boot/dts/am335x-sl50.dts +++ b/arch/arm/boot/dts/am335x-sl50.dts @@ -8,6 +8,7 @@ /dts-v1/; #include "am33xx.dtsi" +#include <dt-bindings/pwm/pwm.h> / { model = "Toby Churchill SL50 Series"; @@ -60,16 +61,44 @@ backlight0: disp0 { compatible = "pwm-backlight"; - pwms = <&ehrpwm1 0 500000 0>; - brightness-levels = <0 10 20 30 40 50 60 70 80 90 99>; - default-brightness-level = <6>; + pinctrl-names = "default"; + pinctrl-0 = <&backlight0_pins>; + pwms = <&ehrpwm1 0 500000 PWM_POLARITY_INVERTED>; + 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>; + default-brightness-level = <50>; + enable-gpios = <&gpio2 4 GPIO_ACTIVE_HIGH>; + power-supply = <&vdd_sys_reg>; }; backlight1: disp1 { compatible = "pwm-backlight"; - pwms = <&ehrpwm1 1 500000 0>; - brightness-levels = <0 10 20 30 40 50 60 70 80 90 99>; - default-brightness-level = <6>; + pinctrl-names = "default"; + pinctrl-0 = <&backlight1_pins>; + pwms = <&ehrpwm1 1 500000 PWM_POLARITY_INVERTED>; + 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>; + default-brightness-level = <50>; + enable-gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>; + power-supply = <&vdd_sys_reg>; }; clocks { @@ -108,6 +137,14 @@ reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>; }; + vdd_sys_reg: regulator@0 { + compatible = "regulator-fixed"; + regulator-name = "vdd_sys_reg"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-always-on; + }; + vmmcsd_fixed: fixedregulator0 { compatible = "regulator-fixed"; regulator-name = "vmmcsd_fixed"; @@ -120,6 +157,18 @@ pinctrl-names = "default"; pinctrl-0 = <&lwb_pins>; + backlight0_pins: pinmux_backlight0_pins { + pinctrl-single,pins = < + AM33XX_IOPAD(0x898, PIN_OUTPUT | MUX_MODE7) /* gpmc_wen.gpio2_4 */ + >; + }; + + backlight1_pins: pinmux_backlight1_pins { + pinctrl-single,pins = < + AM33XX_IOPAD(0x828, PIN_OUTPUT | MUX_MODE7) /* gpmc_ad10.gpio0_26 */ + >; + }; + led_pins: pinmux_led_pins { pinctrl-single,pins = < AM33XX_IOPAD(0x854, PIN_OUTPUT | MUX_MODE7) /* gpmc_a5.gpio1_21 */ |