1 files changed, 16 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
index d5cc94ecd60e..dd31b00f0866 100644
--- a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
@@ -39,6 +39,19 @@ Required Properties:
 
 Optional properties:
 
+* clocks: from common clock binding: handle to biu and ciu clocks for the
+  bus interface unit clock and the card interface unit clock.
+
+* clock-names: from common clock binding: Shall be "biu" and "ciu".
+  If the biu clock is missing we'll simply skip enabling it.  If the
+  ciu clock is missing we'll just assume that the clock is running at
+  clock-frequency.  It is an error to omit both the ciu clock and the
+  clock-frequency.
+
+* clock-frequency: should be the frequency (in Hz) of the ciu clock.  If this
+  is specified and the ciu clock is specified then we'll try to set the ciu
+  clock to this at probe time.
+
 * num-slots: specifies the number of slots supported by the controller.
   The number of physical slots actually used could be equal or less than the
   value specified by num-slots. If this property is not specified, the value
@@ -70,6 +83,8 @@ board specific portions as listed below.
 
         dwmmc0@12200000 {
                 compatible = "snps,dw-mshc";
+                clocks = <&clock 351>, <&clock 132>;
+                clock-names = "biu", "ciu";
                 reg = <0x12200000 0x1000>;
                 interrupts = <0 75 0>;
                 #address-cells = <1>;
@@ -77,6 +92,7 @@ board specific portions as listed below.
         };
 
         dwmmc0@12200000 {
+                clock-frequency = <400000000>;
                 num-slots = <1>;
                 supports-highspeed;
                 broken-cd;