[PATCH 1/5] Documentation: mmc: synopsys-dw-mshc: add power domain description

[Shawn Lin]

This patch adds power domain as a optional property for dw_mmc.
We should handle the power domain if available as it's in off
state dut to the policy of power-saving after booting up. Otherwise
dw_mmc can not be accessed.

Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>

---

 Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
index 8636f5a..f48febd 100644
--- a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
@@ -81,6 +81,8 @@ Optional properties:
 * dma-names: request names for generic DMA client binding. Must be "rx-tx".
   Refer to dma.txt for details.
 
+* power-domains: Must contain a reference to the PM domain, if available.
+
 Aliases:
 
 - All the MSHC controller nodes should be represented in the aliases node using
-- 
2.3.7