From mboxrd@z Thu Jan 1 00:00:00 1970 From: weiqing kong Subject: Re: [PATCH 1/3] dt-bindings: pwm: Add MediaTek display PWM bindings Date: Wed, 8 Jun 2016 14:48:52 +0800 Message-ID: <1465368532.5209.15.camel@mhfsdcap03> References: <1464597712-5399-1-git-send-email-weiqing.kong@mediatek.com> <1464597712-5399-2-git-send-email-weiqing.kong@mediatek.com> <20160602224550.GA19256@rob-hp-laptop> <1464936349.5209.9.camel@mhfsdcap03> <57519C59.5040107@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <57519C59.5040107@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Matthias Brugger Cc: Rob Herring , Thierry Reding , Mark Rutland , Pawel Moll , Ian Campbell , Kumar Gala , Russell King , linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, srv_heupstream@mediatek.com, Sascha Hauer , erin.lo@mediatek.com, yingjoe.chen@mediatek.com, eddie.huang@mediatek.com, yh.huang@mediatek.com, yt.shen@mediatek.com List-Id: devicetree@vger.kernel.org On Fri, 2016-06-03 at 17:03 +0200, Matthias Brugger wrote: > > On 03/06/16 08:45, weiqing kong wrote: > > On Thu, 2016-06-02 at 17:45 -0500, Rob Herring wrote: > >> On Mon, May 30, 2016 at 04:41:50PM +0800, Weiqing Kong wrote: > >>> Add MT2701 compatible string. > >>> > >>> Signed-off-by: Weiqing Kong > >>> --- > >>> Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt | 5 +++-- > >>> 1 file changed, 3 insertions(+), 2 deletions(-) > >>> > >>> diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt > >>> index f8f59ba..f2f2fa9 100644 > >>> --- a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt > >>> +++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt > >>> @@ -1,9 +1,10 @@ > >>> MediaTek display PWM controller > >>> > >>> Required properties: > >>> - - compatible: should be "mediatek,-disp-pwm": > >>> - - "mediatek,mt8173-disp-pwm": found on mt8173 SoC. > >>> + - compatible: should be like these: > >>> + - "mediatek,mt2701-disp-bls": found on mt2701 SoC. > >> > >> Why bls instead of pwm? > > > > In mt6595/mt8173, we have a hardware module named pwm. > > In mt2701, we have bls hardware module which includes disp pwm function, > > so we named it mt2701-disp-bls rather than mt2701-disp-pwm in order to > > match with hardware spec. > > thanks. > > > > From what I understand pwm module and disp pwm in mt6589/mt8173 is > independent from the disp pwm. Actually the disp pwm in mt6589 is part > of the bls module, so this should me mediatek,mt2701-disp-pwm as well > > Thanks, > Matthias > ok, I will modify it into mediatek,mt2701-disp-pwm. > >> > >>> - "mediatek,mt6595-disp-pwm": found on mt6595 SoC. > >>> + - "mediatek,mt8173-disp-pwm": found on mt8173 SoC. > >>> - reg: physical base address and length of the controller's registers. > >>> - #pwm-cells: must be 2. See pwm.txt in this directory for a description of > >>> the cell format. > >>> -- > >>> 1.8.1.1.dirty > >>> > > > >