linux-kernel - Re: [PATCH 3/3] hwmon: (peci/cputemp) add Intel Emerald Rapids support

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Message-ID: <277a2c83-de30-41a2-bfe4-d48efeceb6a1@molgen.mpg.de>
Date: Tue, 7 Oct 2025 10:31:59 +0200
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Ivan Mikhaylov <fr0st61te@...il.com>
Cc: Iwona Winiarska <iwona.winiarska@...el.com>,
 Guenter Roeck <linux@...ck-us.net>, linux-hwmon@...r.kernel.org,
 linux-kernel@...r.kernel.org, openbmc@...ts.ozlabs.org
Subject: Re: [PATCH 3/3] hwmon: (peci/cputemp) add Intel Emerald Rapids
 support

Dear Ivan,


Thank you for your patch.

Am 06.10.25 um 23:53 schrieb Ivan Mikhaylov:
> Add support to read DTS for reading Intel Emerald Rapids platform.
> 
> Signed-off-by: Ivan Mikhaylov <fr0st61te@...il.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,

Only use one space before the =.

> +	.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);

Reviewed-by: Paul Menzel <pmenzel@...gen.mpg.de>


Kind regards,

Paul