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Subject: Re: [PATCH] thermal: intel_pch_thermal: Add PCI ids for Lewisburg
 PCH.
To:     Andres Freund <andres@anarazel.de>,
        Tushar Dave <tushar.n.dave@intel.com>,
        Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
        Zhang Rui <rui.zhang@intel.com>
Cc:     linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20200115184415.1726953-1-andres@anarazel.de>
From:   Daniel Lezcano <daniel.lezcano@linaro.org>
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Message-ID: <b7f5365a-08bb-fb5d-ddc9-b81774c5c942@linaro.org>
Date:   Thu, 16 Jan 2020 09:08:31 +0100
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Rui,

are you fine with this patch?


On 15/01/2020 19:44, Andres Freund wrote:
> I noticed that I couldn't read the PCH temperature on my workstation
> (C620 series chipset, w/ 2x Xeon Gold 5215 CPUs) directly, but had to go
> through IPMI. Looking at the data sheet, it looks to me like the
> existing intel PCH thermal driver should work without changes for
> Lewisburg.
> 
> I suspect there's some other PCI id's missing. But I hope somebody at
> Intel would have an easier time figuring that out than I...
> 
> Signed-off-by: Andres Freund <andres@anarazel.de>
> ---
>  drivers/thermal/intel/intel_pch_thermal.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/thermal/intel/intel_pch_thermal.c b/drivers/thermal/intel/intel_pch_thermal.c
> index 4f0bb8f502e1..1f3ff0d489ef 100644
> --- a/drivers/thermal/intel/intel_pch_thermal.c
> +++ b/drivers/thermal/intel/intel_pch_thermal.c
> @@ -23,6 +23,7 @@
>  #define PCH_THERMAL_DID_SKL_H	0xA131 /* Skylake PCH 100 series */
>  #define PCH_THERMAL_DID_CNL	0x9Df9 /* CNL PCH */
>  #define PCH_THERMAL_DID_CNL_H	0xA379 /* CNL-H PCH */
> +#define PCH_THERMAL_DID_LWB	0xA1B1 /* Lewisburg PCH */
>  
>  /* Wildcat Point-LP  PCH Thermal registers */
>  #define WPT_TEMP	0x0000	/* Temperature */
> @@ -272,6 +273,7 @@ enum board_ids {
>  	board_wpt,
>  	board_skl,
>  	board_cnl,
> +	board_lwb,
>  };
>  
>  static const struct board_info {
> @@ -294,6 +296,10 @@ static const struct board_info {
>  		.name = "pch_cannonlake",
>  		.ops = &pch_dev_ops_wpt,
>  	},
> +	[board_lwb] = {
> +		.name = "pch_lewisburg",
> +		.ops = &pch_dev_ops_wpt,
> +	},
>  };
>  
>  static int intel_pch_thermal_probe(struct pci_dev *pdev,
> @@ -398,6 +404,8 @@ static const struct pci_device_id intel_pch_thermal_id[] = {
>  		.driver_data = board_cnl, },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_CNL_H),
>  		.driver_data = board_cnl, },
> +	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCH_THERMAL_DID_LWB),
> +		.driver_data = board_lwb, },
>  	{ 0, },
>  };
>  MODULE_DEVICE_TABLE(pci, intel_pch_thermal_id);
> 


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