[PATCH linux dev-5.8] ARM: dts: aspeed: rainier: Add gpio-keys-polled for fans

Matthew Barth msbarth at linux.ibm.com
Wed Nov 25 12:16:40 AEDT 2020


Add a gpio-keys-polled section for the fan presence signals from the
PCA9552 on i2c bus 7.

Signed-off-by: Matthew Barth <msbarth at linux.ibm.com>
---
 arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts | 43 ++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
index 4692c5e8f919..e83355b8e13a 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
@@ -96,6 +96,49 @@ ps3-presence {
 		};
 	};
 
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <1000>;
+
+		fan0-presence {
+			label = "fan0-presence";
+			gpios = <&pca0 6 GPIO_ACTIVE_LOW>;
+			linux,code = <6>;
+		};
+
+		fan1-presence {
+			label = "fan1-presence";
+			gpios = <&pca0 7 GPIO_ACTIVE_LOW>;
+			linux,code = <7>;
+		};
+
+		fan2-presence {
+			label = "fan2-presence";
+			gpios = <&pca0 8 GPIO_ACTIVE_LOW>;
+			linux,code = <8>;
+		};
+
+		fan3-presence {
+			label = "fan3-presence";
+			gpios = <&pca0 9 GPIO_ACTIVE_LOW>;
+			linux,code = <9>;
+		};
+
+		fan4-presence {
+			label = "fan4-presence";
+			gpios = <&pca0 10 GPIO_ACTIVE_LOW>;
+			linux,code = <10>;
+		};
+
+		fan5-presence {
+			label = "fan5-presence";
+			gpios = <&pca0 11 GPIO_ACTIVE_LOW>;
+			linux,code = <11>;
+		};
+	};
+
 	i2c2mux: i2cmux {
 		compatible = "i2c-mux-gpio";
 		#address-cells = <1>;
-- 
2.28.0



More information about the openbmc mailing list