These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / mmc / fsl-imx-esdhc.txt

diff --git a/kernel/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/kernel/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
index 415c557..dca56d6 100644 (file)
--- a/kernel/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
+++ b/kernel/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
@@ -7,10 +7,17 @@ This file documents differences between the core properties described
 by mmc.txt and the properties used by the sdhci-esdhc-imx driver.
 
 Required properties:
-- compatible : Should be "fsl,<chip>-esdhc"
+- compatible : Should be "fsl,<chip>-esdhc", the supported chips include
+              "fsl,imx25-esdhc"
+              "fsl,imx35-esdhc"
+              "fsl,imx51-esdhc"
+              "fsl,imx53-esdhc"
+              "fsl,imx6q-usdhc"
+              "fsl,imx6sl-usdhc"
+              "fsl,imx6sx-usdhc"
+              "fsl,imx7d-usdhc"
 
 Optional properties:
-- fsl,cd-controller : Indicate to use controller internal card detection
 - fsl,wp-controller : Indicate to use controller internal write protection
 - fsl,delay-line : Specify the number of delay cells for override mode.
   This is used to set the clock delay for DLL(Delay Line) on override mode
@@ -21,6 +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:
 
@@ -28,7 +40,6 @@ esdhc@70004000 {
        compatible = "fsl,imx51-esdhc";
        reg = <0x70004000 0x4000>;
        interrupts = <1>;
-       fsl,cd-controller;
        fsl,wp-controller;
 };