diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/psb_intel_sdvo.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/psb_intel_sdvo.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c index a4cc777ab7a6..19e36603b23b 100644 --- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c +++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c @@ -134,6 +134,9 @@ struct psb_intel_sdvo { /* Input timings for adjusted_mode */ struct psb_intel_sdvo_dtd input_dtd; + + /* Saved SDVO output states */ + uint32_t saveSDVO; /* Can be SDVOB or SDVOC depending on sdvo_reg */ }; struct psb_intel_sdvo_connector { @@ -1830,6 +1833,34 @@ done: #undef CHECK_PROPERTY } +static void psb_intel_sdvo_save(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct psb_intel_encoder *psb_intel_encoder = + psb_intel_attached_encoder(connector); + struct psb_intel_sdvo *sdvo = + to_psb_intel_sdvo(&psb_intel_encoder->base); + + sdvo->saveSDVO = REG_READ(sdvo->sdvo_reg); +} + +static void psb_intel_sdvo_restore(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct drm_encoder *encoder = + &psb_intel_attached_encoder(connector)->base; + struct psb_intel_sdvo *sdvo = to_psb_intel_sdvo(encoder); + struct drm_crtc *crtc = encoder->crtc; + + REG_WRITE(sdvo->sdvo_reg, sdvo->saveSDVO); + + /* Force a full mode set on the crtc. We're supposed to have the + mode_config lock already. */ + 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 = { .dpms = psb_intel_sdvo_dpms, .mode_fixup = psb_intel_sdvo_mode_fixup, @@ -1840,6 +1871,8 @@ static const struct drm_encoder_helper_funcs psb_intel_sdvo_helper_funcs = { static const struct drm_connector_funcs psb_intel_sdvo_connector_funcs = { .dpms = drm_helper_connector_dpms, + .save = psb_intel_sdvo_save, + .restore = psb_intel_sdvo_restore, .detect = psb_intel_sdvo_detect, .fill_modes = drm_helper_probe_single_connector_modes, .set_property = psb_intel_sdvo_set_property, |