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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Rob, On 20/01/24 1:15 am, Rob Herring wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > On Thu, Jan 18, 2024 at 02:56:11PM +0530, Dharma Balasubiramani wrote: >> Convert device tree bindings for Atmel's HLCDC PWM controller to YAML >> format. >> >> Signed-off-by: Dharma Balasubiramani >> Reviewed-by: Conor Dooley >> --- >> changelog >> v2 -> v3 >> - Remove '|' in description, as there is no formatting to preserve. >> - Delete the description for pwm-cells. >> - Drop the label for pwm node as it not used. >> v1 -> v2 >> - Remove the explicit copyrights. >> - Modify title (not include words like binding/driver). >> - Modify description actually describing the hardware and not the driver. >> - Remove pinctrl properties which aren't required. >> - Drop parent node and it's other sub-device node which are not related here. >> --- >> .../bindings/pwm/atmel,hlcdc-pwm.yaml | 44 +++++++++++++++++++ >> .../bindings/pwm/atmel-hlcdc-pwm.txt | 29 ------------ >> 2 files changed, 44 insertions(+), 29 deletions(-) >> create mode 100644 Documentation/devicetree/bindings/pwm/atmel,hlcdc-pwm.yaml >> delete mode 100644 Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt >> >> diff --git a/Documentation/devicetree/bindings/pwm/atmel,hlcdc-pwm.yaml b/Documentation/devicetree/bindings/pwm/atmel,hlcdc-pwm.yaml >> new file mode 100644 >> index 000000000000..4f4cc21fe4f7 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/pwm/atmel,hlcdc-pwm.yaml >> @@ -0,0 +1,44 @@ >> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/pwm/atmel,hlcdc-pwm.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Atmel's HLCDC's PWM controller >> + >> +maintainers: >> + - Nicolas Ferre >> + - Alexandre Belloni >> + - Claudiu Beznea >> + >> +description: >> + The LCDC integrates a Pulse Width Modulation (PWM) Controller. This block >> + generates the LCD contrast control signal (LCD_PWM) that controls the >> + display's contrast by software. LCDC_PWM is an 8-bit PWM signal that can be >> + converted to an analog voltage with a simple passive filter. LCD display >> + panels have different backlight specifications in terms of minimum/maximum >> + values for PWM frequency. If the LCDC PWM frequency range does not match the >> + LCD display panel, it is possible to use the standalone PWM Controller to >> + drive the backlight. >> + >> +properties: >> + compatible: >> + const: atmel,hlcdc-pwm >> + >> + "#pwm-cells": >> + const: 3 >> + >> +required: >> + - compatible >> + - "#pwm-cells" >> + >> +additionalProperties: false >> + >> +examples: >> + - | >> + pwm { >> + compatible = "atmel,hlcdc-pwm"; >> + pinctrl-names = "default"; >> + pinctrl-0 = <&pinctrl_lcd_pwm>; >> + #pwm-cells = <3>; >> + }; > > Move the example to the MFD schema. Or just drop if already there. As Sam suggested I will send v4 series with this binding as it is and will send the clean up patch later. -- Thanks, Dharma B. > > Rob _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel