[PATCH 1/5] dt-bindings: fsi: Document gpios

[Joel Stanley]

The FSI master has some associated GPIOs that may be present on some
hardware configurations.

Signed-off-by: Joel Stanley <joel at jms.id.au>
---
 .../devicetree/bindings/fsi/fsi-master-aspeed.txt    | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt b/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt
index b758f91914f7..a513e65ec0c9 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>;
     };
-- 
2.27.0