Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-17 10:26:09 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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: 93cbc1accbce ("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 da1878b61c8d480c361ba6a39ce8a31c80b65826)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/i915/display/intel_backlight.c
View File

@ -1449,6 +1449,9 @@ bxt_setup_backlight(struct intel_connector *connector, enum pipe unused)
static int cnp_num_backlight_controllers(struct drm_i915_private *i915)
{
if (INTEL_PCH_TYPE(i915) >= PCH_MTL)
return 2;
if (INTEL_PCH_TYPE(i915) >= PCH_DG1)
return 1;

3
drivers/gpu/drm/i915/display/intel_pps.c
View File

@ -351,6 +351,9 @@ static int intel_num_pps(struct drm_i915_private *i915)
if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
return 2;
if (INTEL_PCH_TYPE(i915) >= PCH_MTL)
return 2;
if (INTEL_PCH_TYPE(i915) >= PCH_DG1)
return 1;