| Message ID | 20191210095151.15441-2-faiz_abbas@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Port am335 and am437 devices to sdhci-omap | expand |
On Tue, 10 Dec 2019 15:21:45 +0530, Faiz Abbas wrote: > From: Chunyan Zhang <zhang.chunyan@linaro.org> > > sdhci-omap can support both external dma controller via dmaengine > framework as well as ADMA which standard SD host controller > provides. Add binding documentation for these external dma properties. > > 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 | 9 +++++++++ > 1 file changed, 9 insertions(+) > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt index 72c4dec7e1db..97efb01617dd 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt @@ -15,6 +15,13 @@ Required properties: "hs200_1_8v", - pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt +Optional properties: +- 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 "tx" + and "rx" for TX and RX DMA requests, respectively. + Example: mmc1: mmc@4809c000 { compatible = "ti,dra7-sdhci"; @@ -22,4 +29,6 @@ Example: ti,hwmods = "mmc1"; bus-width = <4>; vmmc-supply = <&vmmc>; /* phandle to regulator node */ + dmas = <&sdma 61 &sdma 62>; + dma-names = "tx", "rx"; };