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| author | Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2013-04-16 00:02:07 +0400 |
|---|---|---|
| committer | Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2013-04-16 01:38:06 +0400 |
| commit | 4dd6a897959aca968c59f0b2bc08c2d855cd553c (patch) | |
| tree | 3eabc9d7968c58be2a0d849255021ba68056ca66 /drivers/gpu/drm/gma500 | |
| parent | 0c1a14c2c17f13c1869e82783bd49774bba67254 (diff) | |
| download | linux-4dd6a897959aca968c59f0b2bc08c2d855cd553c.tar.xz | |
drm/gma500: Check connector status before restoring sdvo
This patch fixes a bug introduced by:
commit 749387dc8d8270b279f27a0a794cdf4f4a4aa774
Author: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Date: Sun Apr 7 16:35:50 2013 +0200
drm/gma500: Fix hibernation problems on sdvo encoders
The bug is triggered when we do a mode set on a sdvo encoder with all
connectors in the disconnected state. A crtc is considered enabled by
drm even though all of its connectors are disconnected. Work around
this by adding a check in our sdvo restore function.
Also remove the unneeded dpms on. Prepare and Commit will take care of
that.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/gma500')
| -rw-r--r-- | drivers/gpu/drm/gma500/psb_intel_sdvo.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c index cd1b40722edd..19e36603b23b 100644 --- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c +++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c @@ -1854,12 +1854,11 @@ static void psb_intel_sdvo_restore(struct drm_connector *connector) REG_WRITE(sdvo->sdvo_reg, sdvo->saveSDVO); - /* Force dpms on upon resume */ - psb_intel_sdvo_dpms(encoder, DRM_MODE_DPMS_ON); - /* Force a full mode set on the crtc. We're supposed to have the mode_config lock already. */ - drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, NULL); + if (connector->status == connector_status_connected) + drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, + NULL); } static const struct drm_encoder_helper_funcs psb_intel_sdvo_helper_funcs = { |