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[61.220.246.151]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2d04ae196a2sm5621035ad.16.2026.07.31.06.36.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Jul 2026 06:36:03 -0700 (PDT) From: Potin Lai Date: Fri, 31 Jul 2026 21:33:44 +0800 Subject: [PATCH v2] ARM: dts: aspeed: sanmiguel: Disable HSC nodes Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260731-upstream-sanmiguel-remove-hsc-nodes-v2-1-6a954ea49ba8@gmail.com> X-B4-Tracking: v=1; b=H4sIADekbGoC/5WOQQ6CMBBFr0K6dswAiVJX3sOwaMsIY2hLOkA0h LsLeAKXL3n57y9KKDGJumWLSjSzcAwbFKdMuc6EloCbjVWBxQWvJcI0yJjIeBATPLcT9ZDIx5m gEwchNiRgtXa6JIeNtmpbGhI9+X1UHvWPZbIvcuM+vRsdyxjT57gx57v3X3HOIYcnlliRrQyiu 7fecH920at6XdcvVLZZGOgAAAA= X-Change-ID: 20260730-upstream-sanmiguel-remove-hsc-nodes-b99c93ec0d9b To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery , Patrick Williams Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Cosmo Chou , Mike Hsieh , Mik Lin , Potin Lai , Potin Lai X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1785504960; l=2663; i=potin.lai.pt@gmail.com; s=20260522; h=from:subject:message-id; bh=eyeZF/GOeEoskqfrS05+TdeD1fnc46qKy1AQ7cbiGkU=; b=P/nATfAEnRGOJBomjmjs2N4AEqd1gXN+yIgUBZQpk6saBfGRcRI7xQs+RHFrBFJOxYETrt48D /NCKAHNgCIdCmz7h+vuw/K4ebvONGPuFhX36F8agP9n4sC1Oc+6gNEH X-Developer-Key: i=potin.lai.pt@gmail.com; a=ed25519; pk=j3/nMxzz1ZPpp1revghyZ8IqOnwi6RWfuxXN2XrNMRE= Disable Hot-Swap Controller (HSC) power monitor nodes in the DTS. Due to design requirements, the HSC driver probing is moved to userspace. Disabling these nodes in the device tree prevents kernel-level automatic driver probing and allows userspace to handle HSC device instantiation. Signed-off-by: Potin Lai --- Changes in v2: - Set the HSC nodes status disabled instead of removing. - Link to v1: https://patch.msgid.link/20260730-upstream-sanmiguel-remove-h= sc-nodes-v1-1-f0308eb8a00c@gmail.com To: Rob Herring To: Krzysztof Kozlowski To: Conor Dooley To: Joel Stanley To: Andrew Jeffery Cc: devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-aspeed@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org --- arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts b/a= rch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts index 3cc6e772cc8c..b4463533d2d2 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-sanmiguel.dts @@ -445,45 +445,53 @@ &i2c9 { pdb_mps_hsc1: power-monitor@10 { compatible =3D "mps,mp5926"; reg =3D <0x10>; + status =3D "disabled"; }; =20 pdb_ti_hsc1: power-monitor@11 { compatible =3D "ti,lm5066i"; reg =3D <0x11>; shunt-resistor-micro-ohms =3D <1000>; + status =3D "disabled"; }; =20 pdb_mps_hsc2: power-monitor@12 { compatible =3D "mps,mp5926"; reg =3D <0x12>; + status =3D "disabled"; }; =20 pdb_ti_hsc2: power-monitor@13 { compatible =3D "ti,lm5066i"; reg =3D <0x13>; shunt-resistor-micro-ohms =3D <321>; + status =3D "disabled"; }; =20 pdb_mps_hsc3: power-monitor@14 { compatible =3D "mps,mp5926"; reg =3D <0x14>; + status =3D "disabled"; }; =20 pdb_ti_hsc3: power-monitor@15 { compatible =3D "ti,lm5066i"; reg =3D <0x15>; shunt-resistor-micro-ohms =3D <321>; + status =3D "disabled"; }; =20 pdb_mps_hsc4: power-monitor@16 { compatible =3D "mps,mp5926"; reg =3D <0x16>; + status =3D "disabled"; }; =20 pdb_ti_hsc4: power-monitor@17 { compatible =3D "ti,lm5066i"; reg =3D <0x17>; shunt-resistor-micro-ohms =3D <500>; + status =3D "disabled"; }; =20 pdb_ioexp_20: gpio@20 { --- base-commit: c2b9fc3f7091157518a3ac2282a0a8bc797c227a change-id: 20260730-upstream-sanmiguel-remove-hsc-nodes-b99c93ec0d9b Best regards, -- =20 Potin Lai