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authorTomi Valkeinen <tomi.valkeinen@ti.com>2015-10-20 09:04:05 (GMT)
committerJyri Sarha <jsarha@ti.com>2016-02-25 14:39:39 (GMT)
commit31ec5a2c7eed3a3e182a592591f4fb04304668a1 (patch)
treed9abcead4263cb9d7653a1878b5efd21da5640ad /drivers/gpu/drm/tilcdc
parent2efec4f3064d084bac1b2c1e1513a7452e8e245d (diff)
downloadlinux-31ec5a2c7eed3a3e182a592591f4fb04304668a1.tar.xz
drm/tilcdc: remove broken error handling
Remove broken error handling. The condition for handling the LCDC_SYNC_LOST and LCDC_FIFO_UNDERFLOW could never be satisfied as the LCDC_SYNC_LOST interrupt is not enabled. Also the requirement to have both LCDC_SYNC_LOST and LCDC_FIFO_UNDERFLOW fired at once before handling the error looks weird. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> [Added description to the patch] Signed-off-by: Jyri Sarha <jsarha@ti.com>
Diffstat (limited to 'drivers/gpu/drm/tilcdc')
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_crtc.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index e62a950..61aead2 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -658,12 +658,7 @@ irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc)
struct tilcdc_drm_private *priv = dev->dev_private;
uint32_t stat = tilcdc_read_irqstatus(dev);
- if ((stat & LCDC_SYNC_LOST) && (stat & LCDC_FIFO_UNDERFLOW)) {
- stop(crtc);
- dev_err(dev->dev, "error: %08x\n", stat);
- tilcdc_clear_irqstatus(dev, stat);
- start(crtc);
- } else if (stat & LCDC_PL_LOAD_DONE) {
+ if (stat & LCDC_PL_LOAD_DONE) {
tilcdc_clear_irqstatus(dev, stat);
} else {
struct drm_pending_vblank_event *event;