| Message ID | 20190111110851.6805-4-faiz_abbas@ti.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/7] mmc: sdhci: add support for using external DMA devices | expand |
On Fri, Jan 11, 2019 at 04:38:47PM +0530, Faiz Abbas wrote: > From: Chunyan Zhang <zhang.chunyan@linaro.org> The subject is misleading. You are adding new properties, not just changing an example. > > sdhci-omap can support both external dma controller via dmaengine > framework as well as ADMA which standard SD host controller > provides. > > Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org> > Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> > --- > Documentation/devicetree/bindings/mmc/sdhci-omap.txt | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt > index 72c4dec7e1db..f8914a2a2aec 100644 > --- a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt > +++ b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt > @@ -14,6 +14,11 @@ Required properties: > "ddr_1_8v-rev11", "ddr_1_8v" or "ddr_3_3v", "hs200_1_8v-rev11", > "hs200_1_8v", > - pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt > +- dmas: List of DMA specifiers with the controller specific format as described > + in the generic DMA client binding. A tx and rx specifier is required. > +- dma-names: List of DMA request names. These strings correspond 1:1 with the > + DMA specifiers listed in dmas. The string naming is to be "rx" > + and "tx" for RX and TX DMA requests, respectively. The ordering of rx and tx should be defined and you have a mixture. > > Example: > mmc1: mmc@4809c000 { > @@ -22,4 +27,6 @@ Example: > ti,hwmods = "mmc1"; > bus-width = <4>; > vmmc-supply = <&vmmc>; /* phandle to regulator node */ > + dmas = <&sdma 61 &sdma 62>; > + dma-names = "tx", "rx"; > }; > -- > 2.19.2 >
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt index 72c4dec7e1db..f8914a2a2aec 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt @@ -14,6 +14,11 @@ Required properties: "ddr_1_8v-rev11", "ddr_1_8v" or "ddr_3_3v", "hs200_1_8v-rev11", "hs200_1_8v", - pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt +- dmas: List of DMA specifiers with the controller specific format as described + in the generic DMA client binding. A tx and rx specifier is required. +- dma-names: List of DMA request names. These strings correspond 1:1 with the + DMA specifiers listed in dmas. The string naming is to be "rx" + and "tx" for RX and TX DMA requests, respectively. Example: mmc1: mmc@4809c000 { @@ -22,4 +27,6 @@ Example: ti,hwmods = "mmc1"; bus-width = <4>; vmmc-supply = <&vmmc>; /* phandle to regulator node */ + dmas = <&sdma 61 &sdma 62>; + dma-names = "tx", "rx"; };