[PATCH 3/3] hwmon: (peci/cputemp) add Intel Emerald Rapids support
Ivan Mikhaylov
fr0st61te at gmail.com
Tue Oct 7 08:53:21 AEDT 2025
Add support to read DTS for reading Intel Emerald Rapids platform.
Signed-off-by: Ivan Mikhaylov <fr0st61te at gmail.com>
---
drivers/hwmon/peci/cputemp.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/hwmon/peci/cputemp.c b/drivers/hwmon/peci/cputemp.c
index c7112dbf008b..b350c9a76894 100644
--- a/drivers/hwmon/peci/cputemp.c
+++ b/drivers/hwmon/peci/cputemp.c
@@ -364,6 +364,7 @@ static int init_core_mask(struct peci_cputemp *priv)
case INTEL_ICELAKE_X:
case INTEL_ICELAKE_D:
case INTEL_SAPPHIRERAPIDS_X:
+ case INTEL_EMERALDRAPIDS_X:
ret = peci_ep_pci_local_read(peci_dev, 0, reg->bus, reg->dev,
reg->func, reg->offset + 4, &data);
if (ret)
@@ -539,6 +540,13 @@ static struct resolved_cores_reg resolved_cores_reg_spr = {
.offset = 0x80,
};
+static struct resolved_cores_reg resolved_cores_reg_emr = {
+ .bus = 31,
+ .dev = 30,
+ .func = 6,
+ .offset = 0x80,
+};
+
static const struct cpu_info cpu_hsx = {
.reg = &resolved_cores_reg_hsx,
.min_peci_revision = 0x33,
@@ -563,6 +571,12 @@ static const struct cpu_info cpu_spr = {
.thermal_margin_to_millidegree = &dts_ten_dot_six_to_millidegree,
};
+static const struct cpu_info cpu_emr = {
+ .reg = &resolved_cores_reg_emr,
+ .min_peci_revision = 0x40,
+ .thermal_margin_to_millidegree = &dts_ten_dot_six_to_millidegree,
+};
+
static const struct auxiliary_device_id peci_cputemp_ids[] = {
{
.name = "peci_cpu.cputemp.hsx",
@@ -592,6 +606,10 @@ static const struct auxiliary_device_id peci_cputemp_ids[] = {
.name = "peci_cpu.cputemp.spr",
.driver_data = (kernel_ulong_t)&cpu_spr,
},
+ {
+ .name = "peci_cpu.cputemp.emr",
+ .driver_data = (kernel_ulong_t)&cpu_emr,
+ },
{ }
};
MODULE_DEVICE_TABLE(auxiliary, peci_cputemp_ids);
--
2.49.0
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