Documentation: add description of phy for sdhci-of-arasan

This patch adds phys and phy-names for sdhci-of-arasan as required
properties for arasan,sdhci-5.1, and details the example as well.

Change-Id: Ia3fc9c6284fc6f557b90fa880c9f2e8d01a4d3c2
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
index da541c3631f81880c6e87b62e8ca2cb133d1aec4..31b35c3a5e478191cb5faa427b5aaec57ec87fff 100644 (file)
--- a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
@@ -1,11 +1,12 @@
 Device Tree Bindings for the Arasan SDHCI Controller
 
 Device Tree Bindings for the Arasan SDHCI Controller
 

-  The bindings follow the mmc[1], clock[2] and interrupt[3] bindings. Only
-  deviations are documented here.
+  The bindings follow the mmc[1], clock[2], interrupt[3] and phy[4] bindings.
+  Only deviations are documented here.

 
   [1] Documentation/devicetree/bindings/mmc/mmc.txt
   [2] Documentation/devicetree/bindings/clock/clock-bindings.txt
   [3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
 
   [1] Documentation/devicetree/bindings/mmc/mmc.txt
   [2] Documentation/devicetree/bindings/clock/clock-bindings.txt
   [3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt

+  [4] Documentation/devicetree/bindings/phy/phy-bindings.txt

 
 Required Properties:
   - compatible: Compatibility string. Must be 'arasan,sdhci-8.9a' or
 
 Required Properties:
   - compatible: Compatibility string. Must be 'arasan,sdhci-8.9a' or


@@ -17,6 +18,10 @@ Required Properties:
   - interrupt-parent: Phandle for the interrupt controller that services
                      interrupts for this device.
 
   - interrupt-parent: Phandle for the interrupt controller that services
                      interrupts for this device.
 

+Required Properties for "arasan,sdhci-5.1":
+  - phys: From PHY bindings: Phandle for the Generic PHY for arasan.
+  - phy-names:  MUST be "phy_arasan".
+

 Example:
        sdhci@e0100000 {
                compatible = "arasan,sdhci-8.9a";
 Example:
        sdhci@e0100000 {
                compatible = "arasan,sdhci-8.9a";


@@ -26,3 +31,14 @@ Example:
                interrupt-parent = <&gic>;
                interrupts = <0 24 4>;
        } ;
                interrupt-parent = <&gic>;
                interrupts = <0 24 4>;
        } ;

+
+       sdhci@e2800000 {
+               compatible = "arasan,sdhci-5.1";
+               reg = <0xe2800000 0x1000>;
+               clock-names = "clk_xin", "clk_ahb";
+               clocks = <&cru 8>, <&cru 18>;
+               interrupt-parent = <&gic>;
+               interrupts = <0 24 4>;
+               phys = <&emmc_phy>;
+               phy-names = "phy_arasan";
+       } ;