From: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
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@xxxxxx>
[Added description to the patch]
Signed-off-by: Jyri Sarha <jsarha@xxxxxx>
---
drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index ec7be2c..fe2aed7 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;
--
1.9.1
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