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drm/i915: Propagate errors back from fb set-base 

Along the modesetting short cut where we skip trying to do a full
modeset and instead simply update the framebuffer base registers, we
failed to handle any errors reported.

This regression has been introduced in

commit 94352cf9a5
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jul 5 22:51:56 2012 +0200

    drm/i915: push crtc->fb update into pipe_set_base

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2013-05-03 17:36:25 +01:00 committed by Daniel Vetter
parent 1c98b4871c
commit 2d05eae1c9
1 changed files with 10 additions and 15 deletions
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25
drivers/gpu/drm/i915/intel_display.c
View File

@ -8332,11 +8332,6 @@ static int intel_crtc_set_config(struct drm_mode_set *set)
ret = intel_set_mode(set->crtc, set->mode,
set->x, set->y, set->fb);
if (ret) {
DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n",
set->crtc->base.id, ret);
goto fail;
}
} else if (config->fb_changed) {
intel_crtc_wait_for_pending_flips(set->crtc);
@ -8344,18 +8339,18 @@ static int intel_crtc_set_config(struct drm_mode_set *set)
set->x, set->y, set->fb);
}
intel_set_config_free(config);
return 0;
if (ret) {
DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n",
set->crtc->base.id, ret);
fail:
intel_set_config_restore_state(dev, config);
intel_set_config_restore_state(dev, config);
/* Try to restore the config */
if (config->mode_changed &&
intel_set_mode(save_set.crtc, save_set.mode,
save_set.x, save_set.y, save_set.fb))
DRM_ERROR("failed to restore config after modeset failure\n");
/* Try to restore the config */
if (config->mode_changed &&
intel_set_mode(save_set.crtc, save_set.mode,
save_set.x, save_set.y, save_set.fb))
DRM_ERROR("failed to restore config after modeset failure\n");
}
out_config:
intel_set_config_free(config);