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drm/i915: Skip some bw_state readout on pre-icl

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We only compute bw_state->data_rate and bw_state->num_active_planes
on icl+. Do the same during readout so that we don't leave random
junk inside the state.

v2: Skip the whole intel_bw_crtc_update() (Vinod)

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-13-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2025-03-06 18:34:14 +02:00
parent 7b65b24a4e
commit ff79a131d3
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/display/intel_bw.c
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@ -1441,7 +1441,8 @@ void intel_bw_update_hw_state(struct intel_display *display)
if (crtc_state->hw.active)
bw_state->active_pipes |= BIT(pipe);
intel_bw_crtc_update(bw_state, crtc_state);
if (DISPLAY_VER(display) >= 11)
intel_bw_crtc_update(bw_state, crtc_state);
}
}