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Date: Mon, 20 Apr 2015 10:31:16 +0200 From: Sascha Hauer <s.hauer@...gutronix.de> To: Chaotian Jing <chaotian.jing@...iatek.com> Cc: Rob Herring <robh+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>, Chris Ball <chris@...ntf.net>, Ulf Hansson <ulf.hansson@...aro.org>, Mark Rutland <mark.rutland@....com>, James Liao <jamesjj.liao@...iatek.com>, srv_heupstream@...iatek.com, Arnd Bergmann <arnd@...db.de>, devicetree@...r.kernel.org, Hongzhou Yang <hongzhou.yang@...iatek.com>, Catalin Marinas <catalin.marinas@....com>, bin.zhang@...iatek.com, linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org, Will Deacon <will.deacon@....com>, linux-gpio@...r.kernel.org, linux-mediatek@...ts.infradead.org, Sascha Hauer <kernel@...gutronix.de>, "Joe.C" <yingjoe.chen@...iatek.com>, Eddie Huang <eddie.huang@...iatek.com>, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCH v2 1/5] mmc: dt-bindings: add Mediatek MMC bindings Hi Chaotian, On Tue, Mar 17, 2015 at 11:13:51AM +0800, Chaotian Jing wrote: > Document the device-tree binding of Mediatek MMC host > > Signed-off-by: Chaotian Jing <chaotian.jing@...iatek.com> > --- > Documentation/devicetree/bindings/mmc/mtk-sd.txt | 33 ++++++++++++++++++++++++ > 1 file changed, 33 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mmc/mtk-sd.txt > > diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt > new file mode 100644 > index 0000000..ac43f77 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt > @@ -0,0 +1,33 @@ > +* MTK MMC controller > + > +The MTK MSDC can act as a MMC controller > +to support MMC, SD, and SDIO types of memory cards. > + > +This file documents differences between the core properties in mmc.txt > +and the properties used by the msdc driver. > + > +Required properties: > +- compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc". > +- interrupts: Should contain MSDC interrupt number > +- clocks: MSDC source clock > +- clock-names: "source" When I remove the clk_ignore_unused from the command line SD/MMC stops working on the MT8173. This is because msdc50_0_h_sel is disabled, when I enable this clock SD/MMC works again. This clock should probably be added here and handled appropriatly in the driver. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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