[PATCH 1/3] devicetree: bindings: scsi: hisi_sas: add LED feature for v2 hw

[John Garry]

From: Xiaofei Tan <tanxiaofei@xxxxxxxxxx>

Add directly attached disk LED feature for v2 hw.

Signed-off-by: Xiaofei Tan <tanxiaofei@xxxxxxxxxx>
Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/scsi/hisilicon-sas.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt b/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
index b6a869f..df3bef7 100644
--- a/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
+++ b/Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
@@ -8,7 +8,10 @@ Main node required properties:
 	(b) "hisilicon,hip06-sas-v2" for v2 hw in hip06 chipset
 	(c) "hisilicon,hip07-sas-v2" for v2 hw in hip07 chipset
   - sas-addr : array of 8 bytes for host SAS address
-  - reg : Address and length of the SAS register
+  - reg : Contains two regions. The first is the address and length of the SAS
+          register. The second is the address and length of CPLD register for
+          SGPIO control. The second is optional, and should be set only when
+          we use a CPLD for directly attached disk LED control.
   - hisilicon,sas-syscon: phandle of syscon used for sas control
   - ctrl-reset-reg : offset to controller reset register in ctrl reg
   - ctrl-reset-sts-reg : offset to controller reset status register in ctrl reg
-- 
1.9.1