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| author | Imre Deak <imre.deak@intel.com> | 2025-05-09 21:03:29 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2025-05-12 15:22:46 +0300 |
| commit | 49a50054b784989ad56f8df911611f823d628044 (patch) | |
| tree | 2335f9703a157fdbc875951f63a8841b39c337bd /drivers/gpu/drm/i915/display/intel_dp_mst.c | |
| parent | drm/i915/dp_mst: Use the correct connector while computing the link BPP limit... (diff) | |
| download | linux-49a50054b784989ad56f8df911611f823d628044.tar.gz linux-49a50054b784989ad56f8df911611f823d628044.zip | |
drm/i915/dp_mst: Simplify handling the single-bpp case during state computation
A follow-up change wants to skip invalid bpps in the bpp select loop of
a stream state computation. To allow for that, using the usual
'continue' statement in the loop, change the way the single-bpp range is
handled.
v2: Fix typo in commit message. (Ankit)
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250509180340.554867-3-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 06f4ad8de591..fa969b46245c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -263,6 +263,12 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp, fxp_q4_to_frac(max_bpp_x16) || fxp_q4_to_frac(bpp_step_x16))); + if (!bpp_step_x16) { + /* Allow using zero step only to indicate single try for a given bpp. */ + drm_WARN_ON(display->drm, min_bpp_x16 != max_bpp_x16); + bpp_step_x16 = 1; + } + if (is_mst) { mst_state = drm_atomic_get_mst_topology_state(state, &intel_dp->mst.mgr); if (IS_ERR(mst_state)) @@ -386,10 +392,6 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp, break; } - - /* Allow using zero step to indicate one try */ - if (!bpp_step_x16) - break; } if (slots < 0) { |