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drm/i915/dp_mst: Simplify handling the single-bpp case during state computation

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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
This commit is contained in:
Imre Deak 2025-05-09 21:03:29 +03:00
parent 266e2fcfe2
commit 49a50054b7
1 changed files with 6 additions and 4 deletions
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10
drivers/gpu/drm/i915/display/intel_dp_mst.c
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@ -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;
}
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