diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hvs.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c index 2a835a5cff9d..32ecc26a749a 100644 --- a/drivers/gpu/drm/vc4/vc4_hvs.c +++ b/drivers/gpu/drm/vc4/vc4_hvs.c @@ -962,6 +962,17 @@ static int vc4_hvs_bind(struct device *dev, struct device *master, void *data) dispctrl |= VC4_SET_FIELD(2, SCALER_DISPCTRL_PANIC1); dispctrl |= VC4_SET_FIELD(2, SCALER_DISPCTRL_PANIC2); + /* Set AXI panic mode. + * VC4 panics when < 2 lines in FIFO. + * VC5 panics when less than 1 line in the FIFO. + */ + dispctrl &= ~(SCALER_DISPCTRL_PANIC0_MASK | + SCALER_DISPCTRL_PANIC1_MASK | + SCALER_DISPCTRL_PANIC2_MASK); + dispctrl |= VC4_SET_FIELD(2, SCALER_DISPCTRL_PANIC0); + dispctrl |= VC4_SET_FIELD(2, SCALER_DISPCTRL_PANIC1); + dispctrl |= VC4_SET_FIELD(2, SCALER_DISPCTRL_PANIC2); + HVS_WRITE(SCALER_DISPCTRL, dispctrl); /* Recompute Composite Output Buffer (COB) allocations for the displays |