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dt-bindings: aspeed-sgpio: Add ast2600 sgpio

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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@aspeedtech.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210712100317.23298-3-steven_lee@aspeedtech.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Steven Lee 2021-07-12 18:03:09 +08:00 committed by Joel Stanley
parent 85aef2b218
commit 0ffbfcbc27
1 changed files with 5 additions and 3 deletions
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8
Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml
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@ -10,9 +10,10 @@ maintainers:
- Andrew Jeffery <andrew@aj.id.au>
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