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dt-bindings: mmc: arasan: Update Documentation for the input clock

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Add documentation for an optional input clock which is essentially used
in sampling the input data coming from the card.

Signed-off-by: Manish Narani <manish.narani@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Manish Narani 2019-11-20 12:17:23 +05:30 committed by Ulf Hansson
parent e1463618cd
commit 1963ae5099
1 changed files with 3 additions and 3 deletions
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6
Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
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@ -40,9 +40,9 @@ Optional Properties:
- clock-output-names: If specified, this will be the name of the card clock
which will be exposed by this device. Required if #clock-cells is
specified.
- #clock-cells: If specified this should be the value <0>. With this property
in place we will export a clock representing the Card Clock. This clock
is expected to be consumed by our PHY. You must also specify
- #clock-cells: If specified this should be the value <0> or <1>. With this
property in place we will export one or two clocks representing the Card
Clock. These clocks are expected to be consumed by our PHY.
- xlnx,fails-without-test-cd: when present, the controller doesn't work when
the CD line is not connected properly, and the line is not connected
properly. Test mode can be used to force the controller to function.