On 9/19/23 12:03 AM, Ravi Gunasekaran wrote:
AM654 baseboard has two TCA9554 I/O expander on the WKUP_I2C0 bus.
The expander at address 0x38 is used to detect daughter cards.
Add a node for this I/O expander.
Signed-off-by: Ravi Gunasekaran <r-gunasekaran@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-am654-base-board.dts | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index f5c26e9fba98..035b20386ef3 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -381,6 +381,13 @@
interrupt-controller;
#interrupt-cells = <2>;
};
+
+ pca9554_1: gpio@38 {
As this is at a lower address than the other expander(39), why
not put it before that one to keep these in order?
Also, do you need the label(pca9554_1:) for anything, if not
drop it for now.
Andrew
+ compatible = "nxp,pca9554";
+ reg = <0x38>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
};
&mcu_i2c0 {
base-commit: dfa449a58323de195773cf928d99db4130702bf7
