[PATCH v6 2/9] dt-bindings: aspeed-sgpio: Add ast2600 sgpio

[Steven Lee <steven_lee@xxxxxxxxxxxxxx>]

AST2600 SoC has 2 SGPIO master interfaces one with 128 pins another one
with 80 pins. Add ast2600-sgpiom compatibles and update descriptions to
introduce the max number of available gpio pins that AST2600 supported.

Signed-off-by: Steven Lee <steven_lee@xxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml b/Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml
index b2ae211411ff..46bb121360dc 100644
--- a/Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml
@@ -10,9 +10,10 @@ maintainers:
   - Andrew Jeffery <andrew@xxxxxxxx>
 
 description:
-  This SGPIO controller is for ASPEED AST2500 SoC, it supports up to 80 full
-  featured Serial GPIOs. Each of the Serial GPIO pins can be programmed to
-  support the following options
+  This SGPIO controller is for ASPEED AST2400, AST2500 and AST2600 SoC,
+  AST2600 have two sgpio master one with 128 pins another one with 80 pins,
+  AST2500/AST2400 have one sgpio master with 80 pins. Each of the Serial
+  GPIO pins can be programmed to support the following options
   - Support interrupt option for each input port and various interrupt
     sensitivity option (level-high, level-low, edge-high, edge-low)
   - Support reset tolerance option for each output port
@@ -25,6 +26,7 @@ properties:
     enum:
       - aspeed,ast2400-sgpio
       - aspeed,ast2500-sgpio
+      - aspeed,ast2600-sgpiom
 
   reg:
     maxItems: 1
-- 
2.17.1