linux-kernel - Re: [PATCH v2 7/7] leds: leds-mt6323: Add support for WLEDs and MT6332

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Message-ID: <ZDfiNSAs3Bc7xe1l@duo.ucw.cz>
Date:   Thu, 13 Apr 2023 13:06:29 +0200
From:   Pavel Machek <pavel@....cz>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     lee@...nel.org, sean.wang@...iatek.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, matthias.bgg@...il.com,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: Re: [PATCH v2 7/7] leds: leds-mt6323: Add support for WLEDs and
 MT6332

Hi!

> Add basic code to turn on and off WLEDs and wire up MT6332 support
> to take advantage of it.
> This is a simple approach due to to the aforementioned PMIC supporting
> only on/off status so, at the time of writing, it is impossible for me
> to validate more advanced functionality due to lack of hardware.


> @@ -467,14 +590,24 @@ static int mt6323_led_probe(struct platform_device *pdev)
>  			goto put_child_node;
>  		}
>  
> +		is_wled = of_property_read_bool(child, "mediatek,is-wled");
> +

This needs documenting in the binding, no?

> +static const struct mt6323_hwspec mt6332_spec = {
> +	/* There are no LEDs in MT6332. Only WLEDs are present. */

"Only WLED is present"? 

> +	.max_leds = 0,
> +	.max_wleds = 1,
> +	.max_brightness = 1024,
> +};
> +

Is there chip with both LED and WLEDs? (I'm wondering if this makes
sense in single driver).

Best regards,
								Pavel

-- 
People of Russia, stop Putin before his war on Ukraine escalates.

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