On 11.01.2023 19:35, Matti Lehtimäki wrote: > Uses ti,lp8556 backlight with clk-pwm. > > Signed-off-by: Matti Lehtimäki <matti.lehtimaki@xxxxxxxxx> > --- Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> Konrad > This patch was part of the series > https://lore.kernel.org/linux-arm-msm/20230106114403.275865-1-matti.lehtimaki@xxxxxxxxx/ > which already had the other patches applied. > > Changes in v2: > - Add empty line between subnodes > - Move pwm node to correct place > - Reorder pinctrl properties > --- > .../dts/qcom-apq8026-samsung-matisse-wifi.dts | 61 +++++++++++++++++++ > 1 file changed, 61 insertions(+) > > diff --git a/arch/arm/boot/dts/qcom-apq8026-samsung-matisse-wifi.dts b/arch/arm/boot/dts/qcom-apq8026-samsung-matisse-wifi.dts > index 15b9590ba07b..91b860e24681 100644 > --- a/arch/arm/boot/dts/qcom-apq8026-samsung-matisse-wifi.dts > +++ b/arch/arm/boot/dts/qcom-apq8026-samsung-matisse-wifi.dts > @@ -80,6 +80,55 @@ key-volume-up { > }; > }; > > + i2c-backlight { > + compatible = "i2c-gpio"; > + sda-gpios = <&tlmm 20 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; > + scl-gpios = <&tlmm 21 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; > + > + pinctrl-0 = <&backlight_i2c_default_state>; > + pinctrl-names = "default"; > + > + i2c-gpio,delay-us = <4>; > + > + #address-cells = <1>; > + #size-cells = <0>; > + > + backlight@2c { > + compatible = "ti,lp8556"; > + reg = <0x2c>; > + > + dev-ctrl = /bits/ 8 <0x80>; > + init-brt = /bits/ 8 <0x3f>; > + pwm-period = <100000>; > + > + pwms = <&backlight_pwm 0 100000>; > + pwm-names = "lp8556"; > + > + rom-a0h { > + rom-addr = /bits/ 8 <0xa0>; > + rom-val = /bits/ 8 <0x44>; > + }; > + > + rom-a1h { > + rom-addr = /bits/ 8 <0xa1>; > + rom-val = /bits/ 8 <0x6c>; > + }; > + > + rom-a5h { > + rom-addr = /bits/ 8 <0xa5>; > + rom-val = /bits/ 8 <0x24>; > + }; > + }; > + }; > + > + backlight_pwm: pwm { > + compatible = "clk-pwm"; > + #pwm-cells = <2>; > + clocks = <&mmcc CAMSS_GP0_CLK>; > + pinctrl-0 = <&backlight_pwm_default_state>; > + pinctrl-names = "default"; > + }; > + > reg_tsp_1p8v: regulator-tsp-1p8v { > compatible = "regulator-fixed"; > regulator-name = "tsp_1p8v"; > @@ -418,6 +467,18 @@ accel_int_default_state: accel-int-default-state { > bias-disable; > }; > > + backlight_i2c_default_state: backlight-i2c-default-state { > + pins = "gpio20", "gpio21"; > + function = "gpio"; > + drive-strength = <2>; > + bias-disable; > + }; > + > + backlight_pwm_default_state: backlight-pwm-default-state { > + pins = "gpio33"; > + function = "gp0_clk"; > + }; > + > muic_int_default_state: muic-int-default-state { > pins = "gpio67"; > function = "gpio";
