linux-kernel - [PATCH] ARM: dts: aspeed: clemente: add gpio line name to io expander

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Message-Id: <20251106-dts-add-gpio-to-io-expander-v1-1-b4765c092ebe@fii-foxconn.com>
Date: Thu, 06 Nov 2025 11:28:57 +0800
From: Kimi Chen via B4 Relay <devnull+kimi.zy.chen.fii-foxconn.com@...nel.org>
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, Kimi Chen <kimi.zy.chen@...-foxconn.com>
Subject: [PATCH] ARM: dts: aspeed: clemente: add gpio line name to io
 expander

From: Kimi Chen <kimi.zy.chen@...-foxconn.com>

The chassis power cycle process requires a forced shutdown before
cutting off the standby power. Therefore, SCM CPLD adds a hard shutdown
host function and triggers it via the IO expander in Clemente platform.

Thus, a new GPIO line named "hard_shutdown_host" is added to the
PCA9555 IO expander at line 10 to notify the CPLD to execute the hard
shutdown host function.

Signed-off-by: Kimi Chen <kimi.zy.chen@...-foxconn.com>
---
 arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts | 2 +-
 1 file changed, 1 insertion(+), 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 450446913e36..0eafd8ea04ac 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
@@ -983,7 +983,7 @@ io_expander4: gpio@4f {
 			"",
 			"",
 			"",
-			"",
+			"hard_shutdown_host",
 			"",
 			"",
 			"",

---
base-commit: 6953afcd81a2cc73784e3dd23faa0a1aaf97441a
change-id: 20251106-dts-add-gpio-to-io-expander-a4c32ccf56aa

Best regards,
-- 
Kimi Chen <kimi.zy.chen@...-foxconn.com>