[PATCH] drm/xe/display: Fix ADL-N detection

[Lucas De Marchi]

On Thu, Apr 25, 2024 at 11:22:30AM GMT, Matt Roper wrote:
>On Thu, Apr 25, 2024 at 11:16:09AM -0700, Lucas De Marchi wrote:
>> Contrary to i915, in xe ADL-N is kept as a different platform, not a
>> subplatform of ADL-P. Since the display side doesn't need to
>> differentiate between P and N, i.e. IS_ALDERLAKE_P_N() is never called,
>> just fixup the compat header to check for both P and N.
>>
>> Moving ADL-N to be a subplatform would be more complex as the firmware
>> loading in xe only handles platforms, not subplatforms, as going forward
>> the direction is to check on IP version rather than
>> platforms/subplatforms.
>>
>> Fix warning when initializing display:
>>
>> 	xe 0000:00:02.0: [drm:intel_pch_type [xe]] Found Alder Lake PCH
>> 	------------[ cut here ]------------
>> 	xe 0000:00:02.0: drm_WARN_ON(!((dev_priv)->info.platform == XE_ALDERLAKE_S) && !((dev_priv)->info.platform == XE_ALDERLAKE_P))
>>
>> And wrong paths being taken on the display side.
>>
>> Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
>
>ADL-N uses exactly the same display IP as ADL-P (unlike on the GT side
>where they differ), so
>
>Reviewed-by: Matt Roper <matthew.d.roper at intel.com>

applied, thanks

Lucas De Marchi