linux-kernel - Re: [PATCH 2/2] pwm: add Mediatek display PWM driver support

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Message-ID: <1432628943.11070.2.camel@mtksdaap41>
Date:	Tue, 26 May 2015 16:29:03 +0800
From:	Yingjoe Chen <yingjoe.chen@...iatek.com>
To:	Sascha Hauer <s.hauer@...gutronix.de>
CC:	YH Huang <yh.huang@...iatek.com>,
	Mark Rutland <mark.rutland@....com>,
	<linux-pwm@...r.kernel.org>, <srv_heupstream@...iatek.com>,
	Pawel Moll <pawel.moll@....com>,
	"open list:OPEN FIRMWARE AND..." <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	"Thierry Reding" <thierry.reding@...il.com>,
	Sascha Hauer <kernel@...gutronix.de>,
	Matthias Brugger <matthias.bgg@...il.com>,
	<linux-mediatek@...ts.infradead.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/2] pwm: add Mediatek display PWM driver support

On Tue, 2015-05-26 at 08:05 +0200, Sascha Hauer wrote:
> On Thu, May 21, 2015 at 04:22:31PM +0800, YH Huang wrote:
> > On Mon, 2015-05-18 at 11:42 +0800, Daniel Kurtz wrote:
<...>
> > > On Mon, May 11, 2015 at 5:26 PM, YH Huang <yh.huang@...iatek.com> wrote:
> > > > +
> > > > +static const struct of_device_id mtk_disp_pwm_of_match[] = {
> > > > +       { .compatible = "mediatek,mt6595-disp-pwm" },
> > > 
> > > Does this driver support the PWM in mt8173?
> > > If so, don't you need this, too:
> > > 
> > >   { .compatible = "mediatek,mt8173-disp-pwm" },
> > 
> > Yes, it supports mt8173.
> > I will add it.
> 
> If both yre compatible you don't need to add it since you have a
> "mediatek,mt6595-disp-pwm" in the mt8173 device tree.

Hi Sascha,

We got a similar discussion about this with Mark Brown for spi driver,
please see:

http://lists.infradead.org/pipermail/linux-mediatek/2015-May/000673.html

Joe.C


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