From: Colin Huang <colin.huang2@amd.com>
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 v8 09/11] ARM: dts: aspeed: anacapa: Add LPDB fuse monitor GPIO expander
Date: Wed, 2 Sep 2026 18:21:21 +0800 [thread overview]
Message-ID: <20260902-anacapa-devlop-phase-devicetree-v8-9-69c8eb2a7cda@gmail.com> (raw)
In-Reply-To: <20260902-anacapa-devlop-phase-devicetree-v8-0-69c8eb2a7cda@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 0509bc8bb9cd..2fd7e46daa63 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
@@ -2,6 +2,98 @@
#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
next prev parent reply other threads:[~2026-09-02 10:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-02 10:21 [PATCH v8 00/11] ARM: dts: aspeed: anacapa: restructure devicetree for development-phase Colin Huang
2026-09-02 10:21 ` [PATCH v8 01/11] ARM: dts: aspeed: anacapa: Add EVT1 devicetree and point wrapper to it Colin Huang
2026-09-02 10:21 ` [PATCH v8 02/11] ARM: dts: aspeed: anacapa: Add EVT2 devicetree inheriting EVT1 Colin Huang
2026-09-02 10:21 ` [PATCH v8 03/11] ARM: dts: aspeed: anacapa: Add DVT devicetree inheriting EVT2 Colin Huang
2026-09-02 10:21 ` [PATCH v8 04/11] ARM: dts: aspeed: anacapa: Add additional EEPROM node for SCM Colin Huang
2026-09-02 10:21 ` [PATCH v8 05/11] ARM: dts: aspeed: anacapa: Add eeprom device node for NFC adaptor board Colin Huang
2026-09-02 10:21 ` [PATCH v8 06/11] ARM: dts: aspeed: anacapa: Align PDB fan GPIO numbering Colin Huang
2026-09-02 10:21 ` [PATCH v8 07/11] ARM: dts: aspeed: anacapa: Enable MCTP and FRU for NIC Colin Huang
2026-09-02 10:21 ` [PATCH v8 08/11] ARM: dts: aspeed: anacapa: evt2: Add shunt resistor values for HSC monitors Colin Huang
2026-09-02 10:21 ` Colin Huang [this message]
2026-09-02 10:21 ` [PATCH v8 10/11] ARM: dts: aspeed: anacapa: Simplify leakage GPIO line names Colin Huang
2026-09-02 10:21 ` [PATCH v8 11/11] ARM: dts: aspeed: anacapa: Add SPI flash VCC supply Colin Huang
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