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drm/i915: Reset crtc after resume

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Based on a patch by Takashi Iwai.

Reported-by: Matthias Hopf <mat@mshopf.de>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=27272
Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-01-24 15:02:15 +00:00
parent f3269058e7
commit 5d1d0cc87f
1 changed files with 14 additions and 3 deletions
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17
drivers/gpu/drm/i915/intel_display.c
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@ -5551,6 +5551,18 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
return ret;
}
static void intel_crtc_reset(struct drm_crtc *crtc)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
/* Reset flags back to the 'unknown' status so that they
* will be correctly set on the initial modeset.
*/
intel_crtc->cursor_addr = 0;
intel_crtc->dpms_mode = -1;
intel_crtc->active = true; /* force the pipe off on setup_init_config */
}
static struct drm_crtc_helper_funcs intel_helper_funcs = {
.dpms = intel_crtc_dpms,
.mode_fixup = intel_crtc_mode_fixup,
@ -5562,6 +5574,7 @@ static struct drm_crtc_helper_funcs intel_helper_funcs = {
};
static const struct drm_crtc_funcs intel_crtc_funcs = {
.reset = intel_crtc_reset,
.cursor_set = intel_crtc_cursor_set,
.cursor_move = intel_crtc_cursor_move,
.gamma_set = intel_crtc_gamma_set,
@ -5652,9 +5665,7 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
intel_crtc->cursor_addr = 0;
intel_crtc->dpms_mode = -1;
intel_crtc->active = true; /* force the pipe off on setup_init_config */
intel_crtc_reset(&intel_crtc->base);
if (HAS_PCH_SPLIT(dev)) {
intel_helper_funcs.prepare = ironlake_crtc_prepare;