On Wed, Jul 29, 2015 at 05:03:55PM +0800, Haibo Chen wrote:
Add a required property fsl,imx7d-usdhc in binding doc.
Add an optional property fsl,tuning-step in binding doc.
Better change to:
mmc: sdhci-esdhc-imx: add imx7d support in bingding doc
Signed-off-by: Haibo Chen haibo.c...@freescale.com
---
Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
index 211e778..c6624bc 100644
--- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
+++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
@@ -15,6 +15,7 @@ Required properties:
fsl,imx6q-usdhc
fsl,imx6sl-usdhc
fsl,imx6sx-usdhc
+fsl,imx7d-usdhc
Optional properties:
- fsl,wp-controller : Indicate to use controller internal write protection
@@ -27,6 +28,7 @@ Optional properties:
transparent level shifters on the outputs of the controller. Two cells are
required, first cell specifies minimum slot voltage (mV), second cell
specifies maximum slot voltage (mV). Several ranges could be specified.
+- fsl,tuning-step: Specify the increasing delay cell steps in tuning
procedure.
we could add more explain about this property for better understanding:
e.g. The uSDHC is using one delay cell as default increasing step to do
tuning process. This property allows user to change the tuning step to more
than one delay cells which is useful for some special boards or cards when
the default tuning step can't find the proper delay window within limited
tuning reties.
Examples:
--
1.9.1
Regards
Dong Aisheng
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