From a45b3ae40451542e3d6b37b8fba04e280cc8efa7 Mon Sep 17 00:00:00 2001 From: Ivan Mikhaylov Date: Tue, 7 Oct 2025 00:53:21 +0300 Subject: [PATCH] hwmon: (peci/cputemp) add Intel Emerald Rapids support Add support to read DTS for reading Intel Emerald Rapids platform. Signed-off-by: Ivan Mikhaylov Reviewed-by: Paul Menzel Link: https://lore.kernel.org/r/20251006215321.5036-4-fr0st61te@gmail.com Signed-off-by: Guenter Roeck --- 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 c7112dbf008b7..b350c9a768941 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); -- 2.47.3