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OMAP: DSS2: clear spurious SYNC_LOST_DIGIT interrupts 

When DSS transitions from off mode to on VENC may generate a spurious
SYNC_LOST_DIGIT error. Just ack it when restoring the context. Also
restore IRQENABLE last to avoid triggering interrupts before the
context is fully restored.

Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
This commit is contained in:
Ville Syrjälä 2010-03-05 01:13:11 +02:00 committed by Tomi Valkeinen
parent a74b260502
commit 75c7d59daf
1 changed files with 10 additions and 1 deletions
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11
drivers/video/omap2/dss/dispc.c
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@ -335,7 +335,7 @@ void dispc_save_context(void)
void dispc_restore_context(void)
{
RR(SYSCONFIG);
RR(IRQENABLE);
/*RR(IRQENABLE);*/
/*RR(CONTROL);*/
RR(CONFIG);
RR(DEFAULT_COLOR0);
@ -472,6 +472,15 @@ void dispc_restore_context(void)
/* enable last, because LCD & DIGIT enable are here */
RR(CONTROL);
/* clear spurious SYNC_LOST_DIGIT interrupts */
dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
/*
* enable last so IRQs won't trigger before
* the context is fully restored
*/
RR(IRQENABLE);
}
#undef SR