[PATCH v2 2/5] ARM: dts: aspeed: harma: add fan board I/O expander
From: Peter Yin <hidden>
Date: 2025-06-11 08:05:25
Also in:
linux-aspeed, linux-devicetree, lkml
Subsystem:
arm/aspeed machine support, the rest · Maintainers:
Joel Stanley, Andrew Jeffery, Linus Torvalds
Add GPIO I/O expander node for the fan board to detect and monitor fan board status. Signed-off-by: Peter Yin <redacted> --- .../dts/aspeed/aspeed-bmc-facebook-harma.dts | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+)
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-harma.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-harma.dts
index 3a215bb1e220..344e20394665 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-harma.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-harma.dts@@ -218,6 +218,25 @@ temperature-sensor@4b { compatible = "ti,tmp75"; reg = <0x4b>; }; + + gpio@12 { + compatible = "nxp,pca9555"; + reg = <0x12>; + gpio-controller; + #gpio-cells = <2>; + interrupt-parent = <&sgpiom0>; + interrupts = <116 IRQ_TYPE_LEVEL_LOW>; + + gpio-line-names = + "","", + "","", + "","", + "","", + "","", + "","", + "","fcb1-activate", + "",""; + }; }; &i2c1 {
@@ -273,6 +292,25 @@ temperature-sensor@4b { compatible = "ti,tmp75"; reg = <0x4b>; }; + + gpio@12 { + compatible = "nxp,pca9555"; + reg = <0x12>; + gpio-controller; + #gpio-cells = <2>; + interrupt-parent = <&sgpiom0>; + interrupts = <114 IRQ_TYPE_LEVEL_LOW>; + + gpio-line-names = + "","", + "","", + "","", + "","", + "","", + "","", + "","fcb0-activate", + "",""; + }; }; &i2c3 {
--
2.25.1