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

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Date:   Thu, 21 Jul 2022 18:09:37 +0800
From:   ChiYuan Huang <u0084500@...il.com>
To:     Pavel Machek <pavel@....cz>
Cc:     ChiaEn Wu <peterwu.pub@...il.com>, 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

On Sun, Jul 17, 2022 at 10:46:43AM +0200, Pavel Machek wrote:
> 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?
Yes, and I may also want to change the file name from 'leds-mt6370'
to 'leds-mt6370-rgb'. Is it ok?
> 
> Best regards,
> 							Pavel
> -- 
> People of Russia, stop Putin before his war on Ukraine escalates.