From: Nirmesh Kumar Singh <quic_nkumarsi@quicinc.com>

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@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Wasim Nazir <wasim.nazir@oss.qualcomm.com>
---
 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 4da2c5a12c1f..d1118818e2fd 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -341,6 +341,38 @@ &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