On 10 June 2015 at 04:24, Chaotian Jing <chaotian.jing@xxxxxxxxxxxx> wrote: > Document the device-tree binding of Mediatek MMC host > > Signed-off-by: Chaotian Jing <chaotian.jing@xxxxxxxxxxxx> > --- > Documentation/devicetree/bindings/mmc/mtk-sd.txt | 32 ++++++++++++++++++++++++ > 1 file changed, 32 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..a1adfa4 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt > @@ -0,0 +1,32 @@ > +* 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, HCLK > +- clock-names: "source", "hclk" According to the mmc driver, hclk is treated as an optional clock. Therefore I think you should list it under an "Optional properties" section instead. > +- pinctrl-names: should be "default", "state_uhs" > +- pinctrl-0: should contain default/high speed pin ctrl > +- pinctrl-1: should contain uhs mode pin ctrl > +- vmmc-supply: power to the Core > +- vqmmc-supply: power to the IO > + > +Examples: > +mmc0: mmc@11230000 { > + compatible = "mediatek,mt8173-mmc", "mediatek,mt8135-mmc"; > + reg = <0 0x11230000 0 0x108>; > + interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_LOW>; > + 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"; > + pinctrl-names = "default", "state_uhs"; > + pinctrl-0 = <&mmc0_pins_default>; > + pinctrl-1 = <&mmc0_pins_uhs>; > +}; > -- > 1.8.1.1.dirty > Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html