Documentation: bindings: Add the regulator property to the sub-nodes AHCI bindings

It is now possible to use a regulator property for each port of the
AHCI controller.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 6 insertions, 3 deletions

diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
index 4ab09f2202d4..c2340eeeb97f 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
@@ -37,9 +37,10 @@ Required properties when using sub-nodes:
 
 
 Sub-nodes required properties:
-- reg               : the port number
-- phys              : reference to the SATA PHY node
-
+- reg               : the port number
+And at least one of the following properties:
+- phys              : reference to the SATA PHY node
+- target-supply    : regulator for SATA target power
 
 Examples:
         sata@ffe08000 {
@@ -68,10 +69,12 @@ With sub-nodes:
                 sata0: sata-port@0 {
                         reg = <0>;
                         phys = <&sata_phy 0>;
+                        target-supply = <&reg_sata0>;
                 };
 
                 sata1: sata-port@1 {
                         reg = <1>;
                         phys = <&sata_phy 1>;
+                        target-supply = <&reg_sata1>;;
                 };
         };