linux-kernel - [PATCH] ARM: dts: aspeed: clemente: Add HDD LED GPIO

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Message-Id: <20250926-leo-dts-add-shunt-resistor-v1-1-c871a68792f0@gmail.com>
Date: Fri, 26 Sep 2025 17:37:29 +0800
From: Leo Wang <leo.jt.wang@...il.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Joel Stanley <joel@....id.au>, 
 Andrew Jeffery <andrew@...econstruct.com.au>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org, 
 george.kw.lee@...-foxconn.com, bruce.jy.hung@...-foxconn.com, 
 leo.jt.wang@...-foxconn.com, Leo Wang <leo.jt.wang@...il.com>
Subject: [PATCH] ARM: dts: aspeed: clemente: Add HDD LED GPIO

Define a GPIO expander pin for the HDD LED and expose it via the
LED subsystem. This allows the BMC to control the front panel
HDD activity LED.

Changes include:
 - Add `led-hdd` node under the LED definitions
 - Name the expander pin "HDD_LED_N" in io_expander13

Signed-off-by: Leo Wang <leo.jt.wang@...il.com>
---
 arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
index a614f947dafc9a6628c3f3d45b62ff3ca9d2b618..450446913e36b1418fab901cde44280468990c7a 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
@@ -95,6 +95,11 @@ led-3 {
 			label = "bmc_ready_cpld_noled";
 			gpios = <&gpio0 ASPEED_GPIO(P, 5) (GPIO_ACTIVE_HIGH|GPIO_TRANSITORY)>;
 		};
+
+		led-hdd {
+			label = "hdd_led";
+			gpios = <&io_expander13 1 GPIO_ACTIVE_LOW>;
+		};
 	};
 
 	memory@...00000 {
@@ -1199,7 +1204,7 @@ io_expander13: gpio@14 {
 		#gpio-cells = <2>;
 		gpio-line-names =
 			"rmc_en_dc_pwr_on",
-			"",
+			"HDD_LED_N",
 			"",
 			"",
 			"",

---
base-commit: c65261717599d419e9c683d85f515d3ca2261549
change-id: 20250926-leo-dts-add-shunt-resistor-0cba43f75bce

Best regards,
-- 
Leo Wang <leo.jt.wang@...il.com>