The AM654 base board has a TCA9554/PCA9554-type GPIO expander on the
wkup_i2c0 bus at address 0x38 that is used to detect the presence of
daughter cards. Add a respective DTS description of this expander
to enable its use.
Signed-off-by: Andreas Dannenberg <dannenb...@ti.com>
---
arch/arm/dts/k3-am654-base-board.dts | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/dts/k3-am654-base-board.dts
b/arch/arm/dts/k3-am654-base-board.dts
index e31411e39d..c6a595be23 100644
--- a/arch/arm/dts/k3-am654-base-board.dts
+++ b/arch/arm/dts/k3-am654-base-board.dts
@@ -48,4 +48,11 @@
pinctrl-names = "default";
pinctrl-0 = <&wkup_i2c0_pins_default>;
clock-frequency = <400000>;
+
+ tca9554: gpio@38 {
+ compatible = "nxp,pca9554";
+ reg = <0x38>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
};
--
2.17.1
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