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V4L/DVB (7761): ivtv: increase the DMA timeout from 100 to 300 ms 

When there is a lot of DMA traffic this timeout might sometimes be too low.
Increase it to be on the safe side.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2008-04-26 11:22:11 -03:00 committed by Mauro Carvalho Chehab
parent fcbbf6fb07
commit 2968e31361
1 changed files with 2 additions and 2 deletions
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4
drivers/media/video/ivtv/ivtv-irq.c
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@ -384,7 +384,7 @@ static void ivtv_dma_enc_start_xfer(struct ivtv_stream *s)
ivtv_stream_sync_for_device(s); ivtv_stream_sync_for_device(s);
write_reg(s->sg_handle, IVTV_REG_ENCDMAADDR); write_reg(s->sg_handle, IVTV_REG_ENCDMAADDR);
write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x02, IVTV_REG_DMAXFER); write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x02, IVTV_REG_DMAXFER);
itv->dma_timer.expires = jiffies + msecs_to_jiffies(100); itv->dma_timer.expires = jiffies + msecs_to_jiffies(300);
add_timer(&itv->dma_timer); add_timer(&itv->dma_timer);
} }
@ -400,7 +400,7 @@ static void ivtv_dma_dec_start_xfer(struct ivtv_stream *s)
ivtv_stream_sync_for_device(s); ivtv_stream_sync_for_device(s);
write_reg(s->sg_handle, IVTV_REG_DECDMAADDR); write_reg(s->sg_handle, IVTV_REG_DECDMAADDR);
write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x01, IVTV_REG_DMAXFER); write_reg_sync(read_reg(IVTV_REG_DMAXFER) | 0x01, IVTV_REG_DMAXFER);
itv->dma_timer.expires = jiffies + msecs_to_jiffies(100); itv->dma_timer.expires = jiffies + msecs_to_jiffies(300);
add_timer(&itv->dma_timer); add_timer(&itv->dma_timer);
} }