drm/i915/display: correct dual pps handling for MTL_PCH+

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On the PCH side the second PPS was introduced in ICP+.Add condition
On MTL_PCH and greater platform also having the second PPS.

Note that DG1/2 south block only has the single PPS, so need
to exclude the fake DG1/2 PCHs

Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/11488
Fixes: 93cbc1accb ("drm/i915/mtl: Add fake PCH for Meteor Lake")
Cc: <stable@vger.kernel.org> # v6.9+
Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240801111141.574854-1-dnyaneshwar.bhadane@intel.com
(cherry picked from commit da1878b61c)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

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Dnyaneshwar Bhadane 2024-08-01 16:41:41 +05:30 • committed by Joonas Lahtinen

parent de9c2c66ad

commit 1b85bdb0fa

2 changed files with 6 additions and 0 deletions

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3

drivers/gpu/drm/i915/display/intel_backlight.c

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3

drivers/gpu/drm/i915/display/intel_pps.c

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