X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2FDocumentation%2Fdevicetree%2Fbindings%2Fata%2Fahci-platform.txt;fp=kernel%2FDocumentation%2Fdevicetree%2Fbindings%2Fata%2Fahci-platform.txt;h=c000832a7fb93fbeb1b62d5c896b86eb3606054c;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=c2340eeeb97ff072196dbcd49144897813b1573d;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/Documentation/devicetree/bindings/ata/ahci-platform.txt b/kernel/Documentation/devicetree/bindings/ata/ahci-platform.txt
index c2340eeeb..c000832a7 100644
--- a/kernel/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/kernel/Documentation/devicetree/bindings/ata/ahci-platform.txt
@@ -30,6 +30,10 @@ Optional properties:
 - target-supply     : regulator for SATA target power
 - phys              : reference to the SATA PHY node
 - phy-names         : must be "sata-phy"
+- ports-implemented : Mask that indicates which ports that the HBA supports
+		      are available for software to use. Useful if PORTS_IMPL
+		      is not programmed by the BIOS, which is true with
+		      some embedded SOC's.
 
 Required properties when using sub-nodes:
 - #address-cells    : number of cells to encode an address