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| author | Siddharth Manthan <siddharth.manthan@gmail.com> | 2024-04-04 15:17:57 +0300 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2024-04-05 00:06:33 +0300 |
| commit | 05c65922bd58cc3fc057b37628b143f76e524496 (patch) | |
| tree | cd5cd9b92fb8fe432058a21fe93f36350cabb5e5 /arch/arm64/boot/dts/qcom | |
| parent | f8dddefcb90eaa339c77b2cb3f5a87dec8b1e3b5 (diff) | |
| download | linux-05c65922bd58cc3fc057b37628b143f76e524496.tar.xz | |
arm64: dts: qcom: msm8916-samsung-fortuna: Add PWM backlight
Most of the Galaxy Grand Prime use backlight drivers controlled with PWM
signal.
To simplify the description, add the backlight with the necessary clk-pwm
to the common dtsi.
Signed-off-by: Siddharth Manthan <siddharth.manthan@gmail.com>
[Stephan: Move to fortuna-common and disable on rossa-common]
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
[Raymond: Add the commit message]
Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com>
Link: https://lore.kernel.org/r/20240404121703.17086-3-raymondhackley@protonmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts/qcom')
| -rw-r--r-- | arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi | 36 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi | 9 |
2 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi index 6c66a24ef1af..5e933fb8b363 100644 --- a/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi @@ -26,6 +26,30 @@ }; }; + clk_pwm_backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&clk_pwm 0 100000>; + + enable-gpios = <&tlmm 98 GPIO_ACTIVE_HIGH>; + + brightness-levels = <0 255>; + num-interpolated-steps = <255>; + default-brightness-level = <128>; + + pinctrl-0 = <&backlight_en_default>; + pinctrl-names = "default"; + }; + + clk_pwm: pwm { + compatible = "clk-pwm"; + #pwm-cells = <2>; + + clocks = <&gcc GCC_GP2_CLK>; + + pinctrl-0 = <&backlight_pwm_default>; + pinctrl-names = "default"; + }; + gpio-keys { compatible = "gpio-keys"; @@ -199,6 +223,18 @@ }; &tlmm { + backlight_en_default: backlight-en-default-state { + pins = "gpio98"; + function = "gpio"; + drive-strength = <2>; + bias-disable; + }; + + backlight_pwm_default: backlight-pwm-default-state { + pins = "gpio50"; + function = "gcc_gp2_clk_a"; + }; + fg_alert_default: fg-alert-default-state { pins = "gpio121"; function = "gpio"; diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi index 4048b72efcdc..b438fa81886c 100644 --- a/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi @@ -17,3 +17,12 @@ pinctrl-names = "default"; }; }; + +/* On rossa backlight is controlled with MIPI DCS commands */ +&clk_pwm { + status = "disabled"; +}; + +&clk_pwm_backlight { + status = "disabled"; +}; |