Add VCC supply for ufs-mediatek driver to provide power-saving
operation during low-power modes, for example, VCC can be
turned-off during system suspend and turned-on after
system is resumed.
Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
---
Documentation/devicetree/bindings/ufs/ufs-mediatek.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt b/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt
index e25c007b95d7..72aab8547308 100644
--- a/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt
+++ b/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt
@@ -21,6 +21,7 @@ Required properties for UFS nodes:
defined or a value in the array is "0" then it is assumed
that the frequency is set by the parent clock or a
fixed rate clock source.
+- vcc-supply : phandle to VCC supply regulator node.
Example:
@@ -37,4 +38,6 @@ Example:
clocks = <&infracfg_ao INFRACFG_AO_UFS_CG>;
clock-names = "ufs";
freq-table-hz = <0 0>;
+
+ vcc-supply = <&mt_pmic_vemc_ldo_reg>;
};
--
2.18.0
