hwmon: (peci/cputemp) add Intel Emerald Rapids support

Add support to read DTS for reading Intel Emerald Rapids platform.

Signed-off-by: Ivan Mikhaylov <fr0st61te@gmail.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Link: https://lore.kernel.org/r/20251006215321.5036-4-fr0st61te@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/peci/cputemp.c b/drivers/hwmon/peci/cputemp.c
index c7112dbf008b77ff53f0d72ddfe1f05da3c342d7..b350c9a7689410b9cf6cfbcc9c4990a71c94df07 100644 (file)
--- 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);