linux-kernel - Re: [PATCH v5 11/13] leds: mt6370: Add MediaTek MT6370 current sink type LED Indicator support

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Date:   Sun, 17 Jul 2022 10:46:43 +0200
From:   Pavel Machek <pavel@....cz>
To:     ChiaEn Wu <peterwu.pub@...il.com>
Cc:     lee.jones@...aro.org, daniel.thompson@...aro.org,
        jingoohan1@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, matthias.bgg@...il.com,
        sre@...nel.org, chunfeng.yun@...iatek.com,
        gregkh@...uxfoundation.org, jic23@...nel.org, lars@...afoo.de,
        lgirdwood@...il.com, broonie@...nel.org, linux@...ck-us.net,
        heikki.krogerus@...ux.intel.com, deller@....de,
        chiaen_wu@...htek.com, alice_chen@...htek.com,
        cy_huang@...htek.com, dri-devel@...ts.freedesktop.org,
        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,
        linux-pm@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-iio@...r.kernel.org, linux-fbdev@...r.kernel.org,
        szunichen@...il.com
Subject: Re: [PATCH v5 11/13] leds: mt6370: Add MediaTek MT6370 current sink
 type LED Indicator support

Hi!

> The MediaTek MT6370 is a highly-integrated smart power management IC,
> which includes a single cell Li-Ion/Li-Polymer switching battery
> charger, a USB Type-C & Power Delivery (PD) controller, dual
> Flash LED current sources, a RGB LED driver, a backlight WLED driver,
> a display bias driver and a general LDO for portable devices.
> 
> In MediaTek MT6370, there are four channel current-sink RGB LEDs that
> support hardware pattern for constant current, PWM, and breath mode.
> Isink4 channel can also be used as a CHG_VIN power good indicator.
> 
> Signed-off-by: ChiYuan Huang <cy_huang@...htek.com>

> index a49979f..71bacb5 100644
> --- a/drivers/leds/Kconfig
> +++ b/drivers/leds/Kconfig
> @@ -244,6 +244,20 @@ config LEDS_MT6323
>  	  This option enables support for on-chip LED drivers found on
>  	  Mediatek MT6323 PMIC.
>  
> +config LEDS_MT6370_RGB
> +	tristate "LED Support for MediaTek MT6370 PMIC"
> +	depends on LEDS_CLASS
> +	depends on MFD_MT6370
> +	select LINEAR_RANGE
> +	help
> +	  Say Y here to enable support for MT6370_RGB LED device.
> +	  In MT6370, there are four channel current-sink LED drivers that
> +	  support hardware pattern for constant current, PWM, and breath mode.
> +	  Isink4 channel can also be used as a CHG_VIN power good

Should this go to leds/rgb directory, and should it depend on
multicolor framework?

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

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