diff options
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_crtc.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c index ea274143cea0..42c3b44f9689 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -40,6 +40,7 @@ struct omap_crtc { bool ignore_digit_sync_lost; + bool enabled; bool pending; wait_queue_head_t pending_wait; }; @@ -136,6 +137,7 @@ static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable) if (omap_crtc_output[channel]->output_type == OMAP_DISPLAY_TYPE_HDMI) { dispc_mgr_enable(channel, enable); + omap_crtc->enabled = enable; return; } @@ -172,6 +174,7 @@ static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable) } dispc_mgr_enable(channel, enable); + omap_crtc->enabled = enable; ret = omap_irq_wait(dev, wait, msecs_to_jiffies(100)); if (ret) { @@ -411,18 +414,19 @@ static void omap_crtc_atomic_flush(struct drm_crtc *crtc, dispc_mgr_set_gamma(omap_crtc->channel, lut, length); } - if (dispc_mgr_is_enabled(omap_crtc->channel)) { + /* Only flush the CRTC if it is currently enabled. */ + if (!omap_crtc->enabled) + return; - DBG("%s: GO", omap_crtc->name); + DBG("%s: GO", omap_crtc->name); - rmb(); - WARN_ON(omap_crtc->pending); - omap_crtc->pending = true; - wmb(); + rmb(); + WARN_ON(omap_crtc->pending); + omap_crtc->pending = true; + wmb(); - dispc_mgr_go(omap_crtc->channel); - omap_irq_register(crtc->dev, &omap_crtc->vblank_irq); - } + dispc_mgr_go(omap_crtc->channel); + omap_irq_register(crtc->dev, &omap_crtc->vblank_irq); } static bool omap_crtc_is_plane_prop(struct drm_crtc *crtc, |