From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Rutland Subject: Re: [PATCH 2/4] mmc: dt-bindings: update Mediatek MMC bindings Date: Tue, 13 Oct 2015 11:38:45 +0100 Message-ID: <20151013103845.GA4189@leverpostej> References: <1444729078-26585-1-git-send-email-chaotian.jing@mediatek.com> <1444729078-26585-3-git-send-email-chaotian.jing@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1444729078-26585-3-git-send-email-chaotian.jing@mediatek.com> Sender: linux-mmc-owner@vger.kernel.org To: Chaotian Jing Cc: Ulf Hansson , Catalin Marinas , Will Deacon , Daniel Kurtz , linux-kernel@vger.kernel.org, Lars-Peter Clausen , Howard Chen , devicetree@vger.kernel.org, Pawel Moll , Ian Campbell , Sascha Hauer , Hans de Goede , Rob Herring , linux-mediatek@lists.infradead.org, Matthias Brugger , linux-arm-kernel@lists.infradead.org, srv_heupstream@mediatek.com, Sergei Shtylyov , linux-mmc@vger.kernel.org, Adrian Hunter , Kumar Gala , Javier Martinez Canillas List-Id: devicetree@vger.kernel.org On Tue, Oct 13, 2015 at 05:37:56PM +0800, Chaotian Jing wrote: > Add 400Mhz clock source for HS400 mode > > Signed-off-by: Chaotian Jing > --- > Documentation/devicetree/bindings/mmc/mtk-sd.txt | 12 ++++++++++-- > 1 file changed, 10 insertions(+), 2 deletions(-) > > diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt > index a1adfa4..745bee2 100644 > --- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt > +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt > @@ -17,6 +17,11 @@ Required properties: > - vmmc-supply: power to the Core > - vqmmc-supply: power to the IO > > +Optional properties: > +- clocks: 400mhz clock source for HS400 > +- clock-names: "400mhz" Is that really what the input line is called? > +- hs400-ds-delay: HS400 DS delay setting What is the format of this? Where can I derive the correct value? Mark. > + > Examples: > mmc0: mmc@11230000 { > compatible = "mediatek,mt8173-mmc", "mediatek,mt8135-mmc"; > @@ -24,9 +29,12 @@ mmc0: mmc@11230000 { > interrupts = ; > vmmc-supply = <&mt6397_vemc_3v3_reg>; > vqmmc-supply = <&mt6397_vio18_reg>; > - clocks = <&pericfg CLK_PERI_MSDC30_0>, <&topckgen CLK_TOP_MSDC50_0_H_SEL>; > - clock-names = "source", "hclk"; > + clocks = <&pericfg CLK_PERI_MSDC30_0>, > + <&topckgen CLK_TOP_MSDC50_0_H_SEL>, > + <&topckgen CLK_TOP_MSDCPLL_D2> ; > + clock-names = "source", "hclk", "400mhz"; > pinctrl-names = "default", "state_uhs"; > pinctrl-0 = <&mmc0_pins_default>; > pinctrl-1 = <&mmc0_pins_uhs>; > + hs400-ds-delay = <0x14015>; > }; > -- > 1.8.1.1.dirty > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >