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authorUlf Hansson <ulf.hansson@linaro.org>2014-03-31 14:19:21 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2014-05-12 12:52:38 +0200
commit1a7e99c1fe080cc75ab34e1cbf788ed09b2f58b5 (patch)
tree2dd9ec484e26323cf03919d72ccc3b12c374aa53 /Documentation/devicetree/bindings/mmc
parentae94cafe293343c2680c638c7af8499d708e4d71 (diff)
mmc: mmci: Add DT bindings for feedback clock pin
The ST Micro variant supports the option of using a feedback clock signal in favor of the clockout pin when latching incoming signals on the data bus. Since this is matter of how pins are being routed we need to provide a new DT binding to be able to configure this through DT. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc')
-rw-r--r--Documentation/devicetree/bindings/mmc/mmci.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt
index 9bd2ffa704a7..2c8756fb7755 100644
--- a/Documentation/devicetree/bindings/mmc/mmci.txt
+++ b/Documentation/devicetree/bindings/mmc/mmci.txt
@@ -24,6 +24,7 @@ Optional properties:
- st,sig-dir-dat31 : bus signal direction pin used for DAT[3] and DAT[1].
- st,sig-dir-dat74 : bus signal direction pin used for DAT[4] to DAT[7].
- st,sig-dir-cmd : cmd signal direction pin used for CMD.
+- st,sig-pin-fbclk : feedback clock signal pin used.
Example:
@@ -47,6 +48,7 @@ sdi0_per1@80126000 {
st,sig-dir-dat0;
st,sig-dir-dat2;
st,sig-dir-cmd;
+ st,sig-pin-fbclk;
vmmc-supply = <&ab8500_ldo_aux3_reg>;
vqmmc-supply = <&vmmci>;

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