modesetting: Fix possible_crtcs
Populate outout possible_crtcs as the union of possible_crtcs from the encoders rather than the intersection. Otherwise we're easily left with possible_crtcs==0 when all the possible encoders have non-overlapping possible_crtcs. No idea what the magic 0x7f is about, but keep it around in case it matters. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
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@ -2979,9 +2979,9 @@ drmmode_output_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, drmModeResPtr mode_r
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output->driver_private = drmmode_output;
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output->non_desktop = nonDesktop;
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output->possible_crtcs = 0x7f;
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output->possible_crtcs = 0;
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for (i = 0; i < koutput->count_encoders; i++) {
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output->possible_crtcs &= kencoders[i]->possible_crtcs >> crtcshift;
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output->possible_crtcs |= (kencoders[i]->possible_crtcs >> crtcshift) & 0x7f;
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}
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/* work out the possible clones later */
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output->possible_clones = 0;
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