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drm/i915/dp: Move num_joined_pipes and related checks together

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Move the calculation of `num_joined_pipes` and other constraints that
depend on it, into a single block.
This groups all joiner-dependent logic together, preparing the code for a
future loop-based evaluation of multiple joiner configurations.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260202103731.357416-3-ankit.k.nautiyal@intel.com
This commit is contained in:
Ankit Nautiyal 2026-02-02 16:07:16 +05:30
parent efc85c10f5
commit 19f0dc41c7
1 changed files with 16 additions and 16 deletions
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32
drivers/gpu/drm/i915/display/intel_dp.c
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@ -1472,20 +1472,9 @@ intel_dp_mode_valid(struct drm_connector *_connector,
target_clock = fixed_mode->clock;
}
num_joined_pipes = intel_dp_num_joined_pipes(intel_dp, connector,
mode->hdisplay, target_clock);
max_dotclk *= num_joined_pipes;
sink_format = intel_dp_sink_format(connector, mode);
output_format = intel_dp_output_format(connector, sink_format);
status = intel_pfit_mode_valid(display, mode, output_format, num_joined_pipes);
if (status != MODE_OK)
return status;
if (target_clock > max_dotclk)
return MODE_CLOCK_HIGH;
max_link_clock = intel_dp_max_link_rate(intel_dp);
max_lanes = intel_dp_max_lane_count(intel_dp);
@ -1496,6 +1485,17 @@ intel_dp_mode_valid(struct drm_connector *_connector,
target_clock, mode->hdisplay,
link_bpp_x16, 0);
num_joined_pipes = intel_dp_num_joined_pipes(intel_dp, connector,
mode->hdisplay, target_clock);
max_dotclk *= num_joined_pipes;
if (target_clock > max_dotclk)
return MODE_CLOCK_HIGH;
status = intel_pfit_mode_valid(display, mode, output_format, num_joined_pipes);
if (status != MODE_OK)
return status;
if (intel_dp_has_dsc(connector)) {
int pipe_bpp;
@ -1538,14 +1538,14 @@ intel_dp_mode_valid(struct drm_connector *_connector,
if (intel_dp_joiner_needs_dsc(display, num_joined_pipes) && !dsc)
return MODE_CLOCK_HIGH;
if (mode_rate > max_rate && !dsc)
return MODE_CLOCK_HIGH;
status = intel_dp_mode_valid_downstream(connector, mode, target_clock);
status = intel_mode_valid_max_plane_size(display, mode, num_joined_pipes);
if (status != MODE_OK)
return status;
return intel_mode_valid_max_plane_size(display, mode, num_joined_pipes);
if (mode_rate > max_rate && !dsc)
return MODE_CLOCK_HIGH;
return intel_dp_mode_valid_downstream(connector, mode, target_clock);
}
bool intel_dp_source_supports_tps3(struct intel_display *display)