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Subject: Re: [PATCH v5 1/2] dt-bindings: leds: Add bindings for MT6360 LED
To:     Gene Chen <gene.chen.richtek@gmail.com>, pavel@ucw.cz,
        robh+dt@kernel.org, matthias.bgg@gmail.com
Cc:     dmurphy@ti.com, linux-leds@vger.kernel.org,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
        gene_chen@richtek.com, Wilma.Wu@mediatek.com,
        shufan_lee@richtek.com, cy_huang@richtek.com,
        benjamin.chao@mediatek.com
References: <1602034966-3524-1-git-send-email-gene.chen.richtek@gmail.com>
 <1602034966-3524-2-git-send-email-gene.chen.richtek@gmail.com>
From:   Jacek Anaszewski <jacek.anaszewski@gmail.com>
Message-ID: <2dcc2958-8942-642a-8ace-71d397857463@gmail.com>
Date:   Thu, 8 Oct 2020 23:42:48 +0200
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Hi Gene,

Thanks for the update.

On 10/7/20 3:42 AM, Gene Chen wrote:
> From: Gene Chen <gene_chen@richtek.com>
> 
> Add bindings document for LED support on MT6360 PMIC
> 
> Signed-off-by: Gene Chen <gene_chen@richtek.com>
> ---
>   .../devicetree/bindings/leds/leds-mt6360.yaml      | 95 ++++++++++++++++++++++
>   1 file changed, 95 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/leds/leds-mt6360.yaml
> 
> diff --git a/Documentation/devicetree/bindings/leds/leds-mt6360.yaml b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
> new file mode 100644
> index 0000000..2fa636f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-mt6360.yaml
> @@ -0,0 +1,95 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/leds-mt6360.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LED driver for MT6360 PMIC from MediaTek Integrated.
> +
> +maintainers:
> +  - Gene Chen <gene_chen@richtek.com>
> +
> +description: |
> +  This module is part of the MT6360 MFD device.
> +  see Documentation/devicetree/bindings/mfd/mt6360.yaml
> +  Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode,
> +  and 4-channel RGB LED support Register/Flash/Breath Mode
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt6360-led
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +patternProperties:
> +  "^led@[0-3]$":
> +    type: object
> +    $ref: common.yaml#
> +    description:
> +      Properties for a single LED.
> +
> +    properties:
> +      reg:
> +        description: Index of the LED.
> +        enum:
> +          - 0 # LED output INDICATOR1_RGB
> +          - 1 # LED output INDICATOR2
> +          - 2 # LED output FLED1
> +          - 3 # LED output FLED2
> +
> +unevaluatedProperties: false
> +
> +required:
> +  - compatible
> +  - "#address-cells"
> +  - "#size-cells"
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> +   #include <dt-bindings/leds/common.h>
> +   led-controller {
> +     compatible = "mediatek,mt6360-led";
> +     #address-cells = <1>;
> +     #size-cells = <0>;
> +
> +     led@0 {
> +       reg = <0>;
> +       function = LED_FUNCTION_INDICATOR;
> +       color = <LED_COLOR_ID_RGB>;
> +       led-max-microamp = <24000>;
> +     };

This should be multi-led node. See [0] for a reference.

> +     led@1 {
> +       reg = <1>;
> +       function = LED_FUNCTION_INDICATOR;

Maybe add LED_FUNCTION_MOONLIGHT ?

> +       color = <LED_COLOR_ID_AMBER>;
> +       default-state = "off";
> +       led-max-microamp = <150000>;
> +     };
> +     led@2 {
> +       reg = <2>;
> +       function = LED_FUNCTION_FLASH;
> +       color = <LED_COLOR_ID_WHITE>;
> +       function-enumerator = <1>;
> +       default-state = "off";
> +       led-max-microamp = <200000>;
> +       flash-max-microamp = <500000>;
> +       flash-max-timeout-us = <1024000>;
> +     };
> +     led@3 {
> +       reg = <3>;
> +       function = LED_FUNCTION_FLASH;
> +       color = <LED_COLOR_ID_WHITE>;
> +       function-enumerator = <2>;
> +       default-state = "off";
> +       led-max-microamp = <200000>;
> +       flash-max-microamp = <500000>;
> +       flash-max-timeout-us = <1024000>;
> +     };
> +   };
> +...
> 

[0] 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml

-- 
Best regards,
Jacek Anaszewski