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| author | Joel Stanley <joel@jms.id.au> | 2020-07-28 05:55:23 +0300 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2020-09-10 05:53:11 +0300 |
| commit | 4d4905f6cc5b6534e9a3b6a3c75bcee840a27751 (patch) | |
| tree | 81b16fdc41bdad5fb40556baa4d5d9f3917db826 /Documentation/devicetree/bindings/fsi | |
| parent | 59165631b7e9deca0b93b029a1112f4f8f3df736 (diff) | |
| download | linux-4d4905f6cc5b6534e9a3b6a3c75bcee840a27751.tar.xz | |
dt-bindings: fsi: Document gpios
The FSI master has some associated GPIOs that may be present on some
hardware configurations.
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20200728025527.174503-2-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'Documentation/devicetree/bindings/fsi')
| -rw-r--r-- | Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt b/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt index b758f91914f7..9853fefff5d8 100644 --- a/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt +++ b/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt @@ -12,6 +12,13 @@ Required properties: - pinctrl-0: phandle to pinctrl node - pinctrl-names: pinctrl state +Optional properties: + - cfam-reset-gpios: GPIO for CFAM reset + + - fsi-routing-gpios: GPIO for setting the FSI mux (internal or cabled) + - fsi-mux-gpios: GPIO for detecting the desired FSI mux state + + Examples: fsi-master { @@ -21,4 +28,9 @@ Examples: pinctrl-names = "default"; pinctrl-0 = <&pinctrl_fsi1_default>; clocks = <&syscon ASPEED_CLK_GATE_FSICLK>; + + fsi-routing-gpios = <&gpio0 ASPEED_GPIO(Q, 7) GPIO_ACTIVE_HIGH>; + fsi-mux-gpios = <&gpio0 ASPEED_GPIO(B, 0) GPIO_ACTIVE_HIGH>; + + cfam-reset-gpios = <&gpio0 ASPEED_GPIO(Q, 0) GPIO_ACTIVE_LOW>; }; |