On Fri, Dec 04, 2020 at 12:06:35AM +0800, cy_huang wrote: > From: ChiYuan Huang <cy_hu...@richtek.com> > > Adds DT binding document for Richtek RT4831 MFD core. > > This patch depends on > > "backlight: rt4831: Adds DT binding document for Richtek RT4831 backlight". > "regulator: rt4831: Adds DT binding document for Richtek RT4831 DSV > regulator".
You generally don't need to state dependencies on other patches in the series. You need to state dependencies that are either pending in a maintainers tree or patches not yet applied. IOW, anything not in Linus' tree. And that information goes below the '---'. > > Signed-off-by: ChiYuan Huang <cy_hu...@richtek.com> > --- > Changes since v2 > - Add "patch depends on" in commit description. > - Adds regulator-allow-bypass flag in DSVLCM. > --- > .../devicetree/bindings/mfd/richtek,rt4831.yaml | 90 > ++++++++++++++++++++++ > include/dt-bindings/leds/rt4831-backlight.h | 23 ++++++ This goes in the backlight binding patch. > 2 files changed, 113 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/richtek,rt4831.yaml > create mode 100644 include/dt-bindings/leds/rt4831-backlight.h > > diff --git a/Documentation/devicetree/bindings/mfd/richtek,rt4831.yaml > b/Documentation/devicetree/bindings/mfd/richtek,rt4831.yaml > new file mode 100644 > index 00000000..c6ca953 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/richtek,rt4831.yaml > @@ -0,0 +1,90 @@ > +# SPDX-License-Identifier: GPL-2.0 For new bindings: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mfd/richtek,rt4831.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Richtek RT4831 DSV and Backlight Integrated IC > + > +maintainers: > + - ChiYuan Huang <cy_hu...@richtek.com> > + > +description: | > + RT4831 is a multifunctional device that can provide power to the LCD > display > + and LCD backlight. > + > + For Display Bias Voltage DSVP and DSVN, the output range is about 4V to > 6.5V. > + It's sufficient to meet the current LCD power requirement. > + > + For the LCD backlight, it can provide four channel WLED driving capability. > + Each channel driving current is up to 30mA > + > + Datasheet is available at > + https://www.richtek.com/assets/product_file/RT4831A/DS4831A-05.pdf > + > +properties: > + compatible: > + const: richtek,rt4831 > + > + reg: > + description: I2C device address. > + maxItems: 1 > + > + enable-gpios: > + description: | > + GPIO to enable/disable the chip. It is optional. > + Some usage directly tied this pin to follow VIO 1.8V power on sequence. > + maxItems: 1 > + > + regulators: > + $ref: ../regulator/richtek,rt4831-regulator.yaml > + > + backlight: > + $ref: ../leds/backlight/richtek,rt4831-backlight.yaml > + > +required: > + - compatible > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/leds/rt4831-backlight.h> > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + > + rt4831@11 { > + compatible = "richtek,rt4831"; > + reg = <0x11>; > + > + regulators { > + DSVLCM { > + regulator-min-microvolt = <4000000>; > + regulator-max-microvolt = <7150000>; > + regulator-allow-bypass; > + }; > + DSVP { > + regulator-name = "rt4831-dsvp"; > + regulator-min-microvolt = <4000000>; > + regulator-max-microvolt = <6500000>; > + regulator-boot-on; > + }; > + DSVN { > + regulator-name = "rt4831-dsvn"; > + regulator-min-microvolt = <4000000>; > + regulator-max-microvolt = <6500000>; > + regulator-boot-on; > + }; > + }; > + > + backlight { > + compatible = "richtek,rt4831-backlight"; > + default-brightness = <1024>; > + max-brightness = <2048>; > + richtek,bled-ovp-sel = /bits/ 8 <RT4831_BLOVPLVL_21V>; > + richtek,channel-use = /bits/ 8 <RT4831_BLED_ALLCHEN>; > + }; > + }; > + }; > diff --git a/include/dt-bindings/leds/rt4831-backlight.h > b/include/dt-bindings/leds/rt4831-backlight.h > new file mode 100644 > index 00000000..7084906 > --- /dev/null > +++ b/include/dt-bindings/leds/rt4831-backlight.h > @@ -0,0 +1,23 @@ > +/* > + * This header provides constants for rt4831 backlight bindings. > + * > + * This file is licensed under the terms of the GNU General Public > + * License version 2. This program is licensed "as is" without any > + * warranty of any kind, whether express or implied. Use SPDX tag. Also, probably should be dual licensed too if you want to use your DTs with non-GPL OS. > + */ > + > +#ifndef _DT_BINDINGS_RT4831_BACKLIGHT_H > +#define _DT_BINDINGS_RT4831_BACKLIGHT_H > + > +#define RT4831_BLOVPLVL_17V 0 > +#define RT4831_BLOVPLVL_21V 1 > +#define RT4831_BLOVPLVL_25V 2 > +#define RT4831_BLOVPLVL_29V 3 > + > +#define RT4831_BLED_CH1EN (1 << 0) > +#define RT4831_BLED_CH2EN (1 << 1) > +#define RT4831_BLED_CH3EN (1 << 2) > +#define RT4831_BLED_CH4EN (1 << 3) > +#define RT4831_BLED_ALLCHEN ((1 << 4) - 1) > + > +#endif /* _DT_BINDINGS_RT4831_BACKLIGHT_H */ > -- > 2.7.4 >
