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From: Colin Huang via B4 Relay <devnull+u8813345.gmail.com@kernel.org>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Joel Stanley <joel@jms.id.au>,
	 Andrew Jeffery <andrew@codeconstruct.com.au>,
	 Ryan Chen <ryan_chen@aspeedtech.com>,
	 Billy Tsai <billy_tsai@aspeedtech.com>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	 linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	 colin.huang2@amd.com, Colin Huang <u8813345@gmail.com>,
	 Rex Fu <rex.fu.amd@gmail.com>
Subject: [PATCH v7 09/11] ARM: dts: aspeed: anacapa: Add LPDB fuse monitor GPIO expander
Date: Tue, 01 Sep 2026 20:15:24 +0800	[thread overview]
Message-ID: <20260901-anacapa-devlop-phase-devicetree-v7-9-0bd71d2e0105@gmail.com> (raw)
In-Reply-To: <20260901-anacapa-devlop-phase-devicetree-v7-0-0bd71d2e0105@gmail.com>

From: Rex Fu <rex.fu.amd@gmail.com>

Add PCA9554 GPIO expanders for PDB fuse monitor signals on the
Anacapa DVT board.

The patch adds GPIO expander definitions for both the left and
right PDBs under the i2c8 multiplexer and updates the associated
gpio-line-names to reflect the final signal assignments.

Signed-off-by: Rex Fu <rex.fu.amd@gmail.com>
---
 .../aspeed/aspeed-bmc-facebook-anacapa-dvt.dtsi    | 92 ++++++++++++++++++++++
 1 file changed, 92 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-dvt.dtsi b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-dvt.dtsi
index 6650a5e4e130..cb4c41bd8b8f 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-dvt.dtsi
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-anacapa-dvt.dtsi
@@ -3,6 +3,98 @@
 /dts-v1/;
 #include "aspeed-bmc-facebook-anacapa-evt2.dtsi"
 
+// MB - PDB
+&i2c8 {
+	i2c-mux@72 {
+		i2c@0 {
+			gpio@22 {
+				gpio-line-names =
+					"RPDB_FAN_FULL_SPEED_R_N", "RPDB_I2C_TMP432_U8_ALERT_R_N",
+					"RPDB_I2C_TMP432_U29_ALERT_R_N", "RPDB_GLOBAL_WP",
+					"RPDB_FAN_CT_FAN_FAIL_R_N", "RPDB_VERID_A0",
+					"RPDB_VERID_A1", "RPDB_VERID_A2",
+					"RPDB_ALERT_P50V_HSC2_R_N", "RPDB_ALERT_P50V_HSC3_R_N",
+					"RPDB_ALERT_P50V_HSC4_R_N", "RPDB_ALERT_P50V_STBY_R_N",
+					"RPDB_P12V_MB_VRM_ALERT_R_N",
+					"RPDB_P12V_STBY_VRM_ALERT_R_N",
+					"RPDB_PGD_P3V3_STBY_PWRGD_R",
+					"RPDB_P12V_STBY_VRM_PWRGD_BUF_R";
+			};
+
+			gpio@24 {
+				gpio-line-names =
+					"RPDB_EAM2_PRSNT_MOS_N_R", "RPDB_EAM3_PRSNT_MOS_N_R",
+					"RPDB_PWRGD_P50V_HSC4_SYS_R",
+					"RPDB_PWRGD_P50V_STBY_SYS_BUF_R",
+					"RPDB_P50V_FAN5_R2_PG", "RPDB_P50V_FAN6_R2_PG",
+					"RPDB_P50V_FAN7_R2_PG", "RPDB_P50V_FAN8_R2_PG",
+					"RPDB_SKU_ID0", "RPDB_FAN5_PRSNT_N_R",
+					"", "RPDB_FAN6_PRSNT_N_R",
+					"RPDB_FAN7_PRSNT_N_R", "RPDB_FAN8_PRSNT_N_R",
+					"", "";
+			};
+
+			gpio@38 {
+				compatible = "nxp,pca9554";
+				reg = <0x38>;
+				#gpio-cells = <2>;
+				gpio-controller;
+
+				gpio-line-names =
+					"RPDB_P50V_FUSE2_TVS1", "RPDB_P50V_FUSE2_TVS2",
+					"RPDB_P50V_FUSE3_TVS1", "RPDB_P50V_FUSE3_TVS2",
+					"RPDB_P50V_FUSE4_TVS1", "",
+					"", "";
+
+				interrupt-parent = <&sgpiom0>;
+				interrupts = <174 IRQ_TYPE_LEVEL_LOW>;
+			};
+		};
+
+		i2c@1 {
+			gpio@22 {
+				gpio-line-names =
+					"LPDB_FAN_FULL_SPEED_R_N", "LPDB_I2C_TEMP75_U8_ALERT_R_N",
+					"LPDB_I2C_TMP432_U29_ALERT_R_N", "LPDB_GLOBAL_WP",
+					"LPDB_FAN_CT_FAN_FAIL_R_N", "LPDB_VERID_A0",
+					"LPDB_VERID_A1", "LPDB_VERID_A2",
+					"LPDB_ALERT_P50V_HSC0_R_N", "LPDB_ALERT_P50V_HSC1_R_N",
+					"LPDB_ALERT_P50V_HSC5_R_N", "LPDB_I2C_P12V_SW_VRM_ALERT_R_N",
+					"LPDB_EAM0_PRSNT_MOS_N_R", "LPDB_EAM1_PRSNT_MOS_N_R",
+					"LPDB_PWRGD_P50V_HSC5_SYS_R", "BARKLIP_PRSNT_N_R3";
+			};
+
+			gpio@24 {
+				gpio-line-names =
+					"LPDB_P50V_FAN0_R2_PG", "LPDB_P50V_FAN1_R2_PG",
+					"LPDB_P50V_FAN2_R2_PG", "LPDB_P50V_FAN3_R2_PG",
+					"LPDB_P50V_FAN4_R2_PG", "LPDB_FAN0_PRSNT_N_R",
+					"LPDB_FAN1_PRSNT_N_R", "LPDB_FAN2_PRSNT_N_R",
+					"LPDB_FAN3_PRSNT_N_R", "LPDB_FAN4_PRSNT_N_R",
+					"LPDB_SKU_ID0", "",
+					"", "",
+					"", "LPDB_PG_P3V3_R";
+			};
+
+			gpio@38 {
+				compatible = "nxp,pca9554";
+				reg = <0x38>;
+				#gpio-cells = <2>;
+				gpio-controller;
+
+				gpio-line-names =
+					"LPDB_P50V_FUSE0_TVS1", "LPDB_P50V_FUSE0_TVS2",
+					"LPDB_P50V_FUSE1_TVS1", "LPDB_P50V_FUSE1_TVS2",
+					"LPDB_P50V_FUSE5_TVS1", "",
+					"", "";
+
+				interrupt-parent = <&sgpiom0>;
+				interrupts = <174 IRQ_TYPE_LEVEL_LOW>;
+			};
+		};
+	};
+};
+
 &sgpiom0 {
 	gpio-line-names =
 	/*in - out */

-- 
2.34.1




  parent reply	other threads:[~2026-09-01 12:16 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-01 12:15 [PATCH v7 00/11] ARM: dts: aspeed: anacapa: restructure devicetree for development-phase Colin Huang via B4 Relay
2026-09-01 12:15 ` [PATCH v7 01/11] ARM: dts: aspeed: anacapa: Add EVT1 devicetree and point wrapper to it Colin Huang via B4 Relay
2026-09-01 12:15 ` [PATCH v7 02/11] ARM: dts: aspeed: anacapa: Add EVT2 devicetree inheriting EVT1 Colin Huang via B4 Relay
2026-09-01 12:15 ` [PATCH v7 03/11] ARM: dts: aspeed: anacapa: Add DVT devicetree inheriting EVT2 Colin Huang via B4 Relay
2026-09-01 12:15 ` [PATCH v7 04/11] ARM: dts: aspeed: anacapa: Add additional EEPROM node for SCM Colin Huang via B4 Relay
2026-09-01 12:15 ` [PATCH v7 05/11] ARM: dts: aspeed: anacapa: Add eeprom device node for NFC adaptor board Colin Huang via B4 Relay
2026-09-01 12:15 ` [PATCH v7 06/11] ARM: dts: aspeed: anacapa: Align PDB fan GPIO numbering Colin Huang via B4 Relay
2026-09-01 12:15 ` [PATCH v7 07/11] ARM: dts: aspeed: anacapa: Enable MCTP and FRU for NIC Colin Huang via B4 Relay
2026-09-01 12:15 ` [PATCH v7 08/11] ARM: dts: aspeed: anacapa: evt2: Add shunt resistor values for HSC monitors Colin Huang via B4 Relay
2026-09-01 12:15 ` Colin Huang via B4 Relay [this message]
2026-09-01 12:15 ` [PATCH v7 10/11] ARM: dts: aspeed: anacapa: Simplify leakage GPIO line names Colin Huang via B4 Relay
2026-09-01 12:15 ` [PATCH v7 11/11] ARM: dts: aspeed: anacapa: Add SPI flash VCC supply Colin Huang via B4 Relay

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