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authorSascha Hauer <s.hauer@pengutronix.de>2015-03-24 16:45:04 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2015-03-25 11:46:35 +0300
commit07bf2b54cd8555390cf5fced9471689ebf7fd56c (patch)
tree04cf9a0bfd91feebfb890daf89d955ea6a3c258d /Documentation/devicetree/bindings/mmc
parent9369c97cc7eca4a73baf382cfabe92ed20ea04ed (diff)
downloadlinux-07bf2b54cd8555390cf5fced9471689ebf7fd56c.tar.xz
mmc: sdhci-esdhc-imx: support voltage-range property
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc')
-rw-r--r--Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
index 9046ba06c47a..415c5575cbf7 100644
--- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
+++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
@@ -17,6 +17,10 @@ Optional properties:
to select a proper data sampling window in case the clock quality is not good
due to signal path is too long on the board. Please refer to eSDHC/uSDHC
chapter, DLL (Delay Line) section in RM for details.
+- voltage-ranges : Specify the voltage range in case there are software
+ 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.
Examples: