From: Nirmesh Kumar Singh <quic_nkumarsi@xxxxxxxxxxx>
Integrate the TCA9534 I/O expander via I2C to provide 8 additional
GPIO lines for extended I/O functionality.
Signed-off-by: Nirmesh Kumar Singh <quic_nkumarsi@xxxxxxxxxxx>
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Signed-off-by: Wasim Nazir <wasim.nazir@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/lemans-evk.dts | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index 56aaad39bb59..c48cb4267b72 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -289,6 +289,38 @@ &gpi_dma2 {
status = "okay";
};
+&i2c18 {
+ status = "okay";
+
+ expander0: gpio@38 {
+ compatible = "ti,tca9538";
+ reg = <0x38>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+
+ expander1: gpio@39 {
+ compatible = "ti,tca9538";
+ reg = <0x39>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+
+ expander2: gpio@3a {
+ compatible = "ti,tca9538";
+ reg = <0x3a>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+
+ expander3: gpio@3b {
+ compatible = "ti,tca9538";
+ reg = <0x3b>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ };
+};
+
&mdss0 {
status = "okay";
};
--
2.51.0
