Re: [PATCH 03/18] drm/i915/bxt: Stepping info added for bxt.

[Sunil Kamath <sunil.kamath@intel.com>]

On Sunday 26 July 2015 12:30 AM, Animesh Manna wrote:
> Added stepping info in intel_csr.c which is required to extract
> specific firmware from packaged dmc firmware.
>
> Cc: Vetter, Daniel <daniel.vetter@intel.com>
> Cc: Damien Lespiau <damien.lespiau@intel.com>
> Cc: Imre Deak <imre.deak@intel.com>
> Cc: Sunil Kamath <sunil.kamath@intel.com>
> Signed-off-by: Animesh Manna <animesh.manna@intel.com>
> ---
>   drivers/gpu/drm/i915/intel_csr.c | 11 +++++++++++
>   1 file changed, 11 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
> index 1866426..f440299 100644
> --- a/drivers/gpu/drm/i915/intel_csr.c
> +++ b/drivers/gpu/drm/i915/intel_csr.c
> @@ -183,11 +183,19 @@ static const struct stepping_info skl_stepping_info[] = {
>   		{'G', '0'}, {'H', '0'}, {'I', '0'}
>   };
>   
> +static struct stepping_info bxt_stepping_info[] = {
> +		{'A', '0'}, {'A', '1'}, {'A', '2'},
> +		{'B', '0'}, {'B', '1'}, {'B', '2'}
> +};
> +

I understand that these stepping structure is as per present limited info.

>   static char intel_get_stepping(struct drm_device *dev)
>   {
>   	if (IS_SKYLAKE(dev) && (dev->pdev->revision <
>   			ARRAY_SIZE(skl_stepping_info)))
>   		return skl_stepping_info[dev->pdev->revision].stepping;
> +	else if (IS_BROXTON(dev) && (dev->pdev->revision <
> +			ARRAY_SIZE(bxt_stepping_info)))
> +		return bxt_stepping_info[dev->pdev->revision].stepping;
>   	else
>   		return -ENODATA;
>   }
> @@ -197,6 +205,9 @@ static char intel_get_substepping(struct drm_device *dev)
>   	if (IS_SKYLAKE(dev) && (dev->pdev->revision <
>   			ARRAY_SIZE(skl_stepping_info)))
>   		return skl_stepping_info[dev->pdev->revision].substepping;
> +	else if (IS_BROXTON(dev) && (dev->pdev->revision <
> +			ARRAY_SIZE(bxt_stepping_info)))
> +		return bxt_stepping_info[dev->pdev->revision].substepping;
>   	else
>   		return -ENODATA;
>   }

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