Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2a2a7ea7 authored by Haibo Chen's avatar Haibo Chen Committed by Ulf Hansson
Browse files

mmc: sdhci-esdhc-imx: Document new DT bindings for imx7d support 



Add a required property "fsl,imx7d-usdhc" in binding doc.
Add an optional property "fsl,tuning-step" in binding doc.

Signed-off-by: default avatarHaibo Chen <haibo.chen@freescale.com>
Acked-by: default avatarDong Aisheng <aisheng.dong@freescale.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 77bd2f6f

Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt

+6 −0
Original line number Diff line number Diff line
@@ -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 +28,11 @@ 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.

  The uSDHC use 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 retries.



Examples: