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Commit b8c456d3 authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Tomi Valkeinen
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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: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent d312fe2e

drivers/gpu/drm/omapdrm/omap_dmm_tiler.c

+5 −0
Original line number Diff line number Diff line
@@ -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]);