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Date: Wed, 28 Oct 2020 21:39:54 +0100
From: Alexander Dahl <post@...pocky.de>
To: Peter Ujfalusi <peter.ujfalusi@...com>,
Russell King <linux@...linux.org.uk>
Cc: Alexander Dahl <ada@...rsis.com>,
Alexander Dahl <post@...pocky.de>, linux-leds@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-omap@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-amlogic@...ts.infradead.org, linux-mips@...r.kernel.org,
Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v7 02/12] dt-bindings: leds: Convert pwm to yaml
Hello,
Peter, Russel, could you please give your Acked-by or Signed-off-by on
this patch? Your ack is needed, because the license is now explicitly
set (it was not explicit before), and you were the contributors to
this binding before the conversion to yaml.
Thanks and Greets
Alex
On Mon, Oct 05, 2020 at 10:34:41PM +0200, Alexander Dahl wrote:
> The example was adapted in the following ways:
>
> - make use of the now supported 'function' and 'color' properties
> - remove pwm nodes, those are documented elsewhere
> - align node names to new dt schema rules and dt recommendations
>
> License was not explicitly set before. The license set now is
> recommended by DT project.
>
> Suggested-by: Jacek Anaszewski <jacek.anaszewski@...il.com>
> Signed-off-by: Alexander Dahl <post@...pocky.de>
> Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>
> Reviewed-by: Rob Herring <robh@...nel.org>
> Cc: Peter Ujfalusi <peter.ujfalusi@...com>
> Cc: Russell King <linux@...linux.org.uk>
> ---
>
> Notes:
> NOTE: Due to license set/change this needs Acked-by or Signed-off-by from:
> * Peter Ujfalusi
> * Russell King
>
> That was discussed already with Peter (original author), still waiting
> for Acked-by though …
>
> Changelog
> ---------
> v6 -> v7:
> * added Reviewed-by (Krzysztof Kozlowski)
> * reworded commit message (suggested by Krzysztof)
> * added Reviewed-by (Rob Herring)
>
> v5 -> v6:
> * removed pwm nodes from example (Rob)
> * renamed led-controller node in example (Rob)
>
> v4 -> v5:
> * updated based on feedback by Rob Herring
> * removed Acked-by
>
> v3 -> v4:
> * added Cc to original author of the binding
>
> v2 -> v3:
> * changed license identifier to recommended one
> * added Acked-by
>
> v2:
> * added this patch to series (Suggested-by: Jacek Anaszewski)
>
> .../devicetree/bindings/leds/leds-pwm.txt | 50 -------------
> .../devicetree/bindings/leds/leds-pwm.yaml | 70 +++++++++++++++++++
> 2 files changed, 70 insertions(+), 50 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/leds/leds-pwm.txt
> create mode 100644 Documentation/devicetree/bindings/leds/leds-pwm.yaml
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-pwm.txt b/Documentation/devicetree/bindings/leds/leds-pwm.txt
> deleted file mode 100644
> index 6c6583c35f2f..000000000000
> --- a/Documentation/devicetree/bindings/leds/leds-pwm.txt
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -LED connected to PWM
> -
> -Required properties:
> -- compatible : should be "pwm-leds".
> -
> -Each LED is represented as a sub-node of the pwm-leds device. Each
> -node's name represents the name of the corresponding LED.
> -
> -LED sub-node properties:
> -- pwms : PWM property to point to the PWM device (phandle)/port (id) and to
> - specify the period time to be used: <&phandle id period_ns>;
> -- pwm-names : (optional) Name to be used by the PWM subsystem for the PWM device
> - For the pwms and pwm-names property please refer to:
> - Documentation/devicetree/bindings/pwm/pwm.txt
> -- max-brightness : Maximum brightness possible for the LED
> -- active-low : (optional) For PWMs where the LED is wired to supply
> - rather than ground.
> -- label : (optional)
> - see Documentation/devicetree/bindings/leds/common.txt
> -- linux,default-trigger : (optional)
> - see Documentation/devicetree/bindings/leds/common.txt
> -
> -Example:
> -
> -twl_pwm: pwm {
> - /* provides two PWMs (id 0, 1 for PWM1 and PWM2) */
> - compatible = "ti,twl6030-pwm";
> - #pwm-cells = <2>;
> -};
> -
> -twl_pwmled: pwmled {
> - /* provides one PWM (id 0 for Charing indicator LED) */
> - compatible = "ti,twl6030-pwmled";
> - #pwm-cells = <2>;
> -};
> -
> -pwmleds {
> - compatible = "pwm-leds";
> - kpad {
> - label = "omap4::keypad";
> - pwms = <&twl_pwm 0 7812500>;
> - max-brightness = <127>;
> - };
> -
> - charging {
> - label = "omap4:green:chrg";
> - pwms = <&twl_pwmled 0 7812500>;
> - max-brightness = <255>;
> - };
> -};
> diff --git a/Documentation/devicetree/bindings/leds/leds-pwm.yaml b/Documentation/devicetree/bindings/leds/leds-pwm.yaml
> new file mode 100644
> index 000000000000..fe4d5fd25913
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-pwm.yaml
> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/leds-pwm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LEDs connected to PWM
> +
> +maintainers:
> + - Pavel Machek <pavel@....cz>
> +
> +description:
> + Each LED is represented as a sub-node of the pwm-leds device. Each
> + node's name represents the name of the corresponding LED.
> +
> +properties:
> + compatible:
> + const: pwm-leds
> +
> +patternProperties:
> + "^led(-[0-9a-f]+)?$":
> + type: object
> +
> + $ref: common.yaml#
> +
> + properties:
> + pwms:
> + maxItems: 1
> +
> + pwm-names: true
> +
> + max-brightness:
> + description:
> + Maximum brightness possible for the LED
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> + active-low:
> + description:
> + For PWMs where the LED is wired to supply rather than ground.
> + type: boolean
> +
> + required:
> + - pwms
> + - max-brightness
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> +
> + #include <dt-bindings/leds/common.h>
> +
> + led-controller {
> + compatible = "pwm-leds";
> +
> + led-1 {
> + label = "omap4::keypad";
> + pwms = <&twl_pwm 0 7812500>;
> + max-brightness = <127>;
> + };
> +
> + led-2 {
> + color = <LED_COLOR_ID_GREEN>;
> + function = LED_FUNCTION_CHARGING;
> + pwms = <&twl_pwmled 0 7812500>;
> + max-brightness = <255>;
> + };
> + };
> +
> +...
> --
> 2.20.1
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