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drm/armada: add drm_mode_set_crtcinfo() mode fixup

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Add a drm_mode_set_crtcinfo() call in our CRTC's mode_fixup callback
to ensure that any adjustments to the mode made by connectors etc are
properly accounted for by the CRTC.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King 2018-07-01 15:46:56 +01:00
parent 5d32b660c8
commit f79d7c9543
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/armada/armada_crtc.c
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@ -180,6 +180,13 @@ static bool armada_drm_crtc_mode_fixup(struct drm_crtc *crtc,
adj->flags & DRM_MODE_FLAG_INTERLACE)
return false;
/*
* Set CRTC modesetting parameters for the adjusted mode. This is
* applied after the connectors, bridges, and encoders have fixed up
* this mode, as described above drm_atomic_helper_check_modeset().
*/
drm_mode_set_crtcinfo(adj, CRTC_INTERLACE_HALVE_V);
/* Check whether the display mode is possible */
ret = dcrtc->variant->compute_clock(dcrtc, adj, NULL);
if (ret)