[PATCH v4 04/14] arm64: dts: qcom: lemans-evk: Add TCA9534 I/O expander
From: Wasim Nazir <hidden>
Date: 2025-09-08 08:20:32
Also in:
linux-arm-msm, linux-devicetree, linux-i2c, linux-mmc, lkml
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Linus Torvalds
From: Nirmesh Kumar Singh <redacted> 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 <redacted> Reviewed-by: Konrad Dybcio <redacted> Signed-off-by: Wasim Nazir <redacted> --- 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"; };
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2.51.0