From: Ivan Mikhaylov <fr0st61te@gmail.com>
Date: Mon, 6 Oct 2025 21:53:19 +0000 (+0300)
Subject: peci: cpu: add Intel Emerald Rapids support
X-Git-Tag: v6.19-rc1~148^2~97
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=906f25050add51f1a412ea37e618d8748f75e23a;p=thirdparty%2Fkernel%2Flinux.git

peci: cpu: add Intel Emerald Rapids support

Add support for detection of Intel Emerald Rapids processor based on
CPU model.

Emerald Rapids Xeon processors with the model set to
INTEL_EMERALDRAPIDS_X. The data field for this entry is "emr".

Tested the patch series with AST2600 BMC with 5S Intel Emerald Rapids
processors & verified by reading cpu & dimm temperature which matches
host sensor values from lmsensors.

Signed-off-by: Ivan Mikhaylov <fr0st61te@gmail.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://lore.kernel.org/r/20251006215321.5036-2-fr0st61te@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---

diff --git a/drivers/peci/cpu.c b/drivers/peci/cpu.c
index 2dac8ba827872..fbccc1d1b6377 100644
--- a/drivers/peci/cpu.c
+++ b/drivers/peci/cpu.c
@@ -321,6 +321,10 @@ static const struct peci_device_id peci_cpu_device_ids[] = {
 		.x86_vfm = INTEL_SAPPHIRERAPIDS_X,
 		.data	= "spr",
 	},
+	{ /* Emerald Rapids Xeon */
+		.x86_vfm  = INTEL_EMERALDRAPIDS_X,
+		.data  = "emr",
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(peci, peci_cpu_device_ids);