From nobody Fri Dec 19 12:32:35 2025 Received: from smtp-relay-canonical-1.canonical.com (smtp-relay-canonical-1.canonical.com [185.125.188.121]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4DA8E11C81; Wed, 20 Dec 2023 05:20:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=canonical.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=canonical.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=canonical.com header.i=@canonical.com header.b="RibTiH7b" Received: from HP-EliteBook-x360-830-G8-Notebook-PC.. (unknown [10.101.196.174]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-1.canonical.com (Postfix) with ESMTPSA id DD3713FB71; Wed, 20 Dec 2023 05:13:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1703049239; bh=ZBrxATvDecKxcBA3yFt+cxq4r2eDxfaznghQg4Vtl9w=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=RibTiH7bbAyoafZournYPJgMLjpR3HEjXUpH+BR8Ky93YpPItFTd7AxYJXBumYYzV FY01g9ctGaotueWx16eFy+Kiq2OOdOJ+hZuDa+J9eZ6Wv0yRlNsljX3GfeVsqcVBfH m1fzW/Hx87kvj5qGDjmExCUf2HysEjsT5Ffy5WLBZODyPo2dumJ5iWX1tag/Bqy5rM L8sqv/za7TU5oIRNTRrY5bPSoCeJX08byQCWLhgt2c/64DuAmh2ce2WEEAcUGF4yp3 fWWntuwceGSHIooEk4NbXnB83I9Q9GWmHc2IN5rtiOssMReQdH2A39+IlMAEZ7oo4a tavAK3FrnHFLA== From: Kai-Heng Feng To: jdelvare@suse.com, linux@roeck-us.net Cc: Kai-Heng Feng , linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] hwmon: (acpi_power_meter) Install IPMI handler for Dell systems Date: Wed, 20 Dec 2023 13:13:50 +0800 Message-Id: <20231220051350.392350-1-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The following error can be observed at boot: [ 3.717920] ACPI Error: No handler for Region [SYSI] (00000000ab9e62c5) = [IPMI] (20230628/evregion-130) [ 3.717928] ACPI Error: Region IPMI (ID=3D7) has no handler (20230628/ex= fldio-261) [ 3.717936] No Local Variables are initialized for Method [_GHL] [ 3.717938] No Arguments are initialized for method [_GHL] [ 3.717940] ACPI Error: Aborting method \_SB.PMI0._GHL due to previous e= rror (AE_NOT_EXIST) (20230628/psparse-529) [ 3.717949] ACPI Error: Aborting method \_SB.PMI0._PMC due to previous e= rror (AE_NOT_EXIST) (20230628/psparse-529) [ 3.717957] ACPI: \_SB_.PMI0: _PMC evaluation failed: AE_NOT_EXIST On Dell systems several methods of acpi_power_meter access variables in IPMI region [0], so request module 'ipmi_si' which will load 'acpi_ipmi' and install the region handler accordingly. [0] https://www.dell.com/support/manuals/en-us/redhat-enterprise-linux-v8.0= /rhel8_rn_pub/advanced-configuration-and-power-interface-acpi-error-message= s-displayed-in-dmesg?guid=3Dguid-0d5ae482-1977-42cf-b417-3ed5c3f5ee62 Signed-off-by: Kai-Heng Feng --- drivers/hwmon/acpi_power_meter.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_me= ter.c index 703666b95bf4..b9db53166bc9 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -882,6 +882,8 @@ static int acpi_power_meter_add(struct acpi_device *dev= ice) strcpy(acpi_device_name(device), ACPI_POWER_METER_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_POWER_METER_CLASS); device->driver_data =3D resource; + if (dmi_match(DMI_SYS_VENDOR, "Dell Inc.")) + request_module("ipmi_si"); =20 res =3D read_capabilities(resource); if (res) --=20 2.34.1