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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2017-09-29 14:49:48 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2017-12-01 15:03:59 +0200 |
| commit | 0b378e011c50aaa545463e00db3bfc4cfd05d1fb (patch) | |
| tree | f72b55a5d1c6ddabea940e3a887642fa5e39255e | |
| parent | 1c092fd5a20b58f48d954f8bc9e1b662e9448bed (diff) | |
| download | linux-0b378e011c50aaa545463e00db3bfc4cfd05d1fb.tar.gz | |
drm/omap: DMM: Print information if we received an error interrupt
To help diagnose DMM errors, print out information if any of the error bits
are set in the interrupt status register.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c index 5a18f0ead4d50e..09d09734117e8d 100644 --- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c +++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c @@ -166,6 +166,11 @@ static irqreturn_t omap_dmm_irq_handler(int irq, void *arg) dmm_write(dmm, status, DMM_PAT_IRQSTATUS); for (i = 0; i < dmm->num_engines; i++) { + if (status & DMM_IRQSTAT_ERR_MASK) + dev_err(dmm->dev, + "irq error(engine%d): IRQSTAT 0x%02x\n", + i, status & 0xff); + if (status & DMM_IRQSTAT_LST) { if (dmm->engines[i].async) release_engine(&dmm->engines[i]); |