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author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2015-10-16 10:18:03 +0300 |
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committer | Vinod Koul <vinod.koul@intel.com> | 2015-10-27 10:22:45 +0900 |
commit | f9425deb662ac07099ec151ffb4791eef48e9d83 (patch) | |
tree | 72ab0e34795644cbb03bf11e631863cafc585041 /drivers/dma/edma.c | |
parent | d9c345d18a8df5a5427cca80d2b9d981468ef270 (diff) | |
download | linux-f9425deb662ac07099ec151ffb4791eef48e9d83.tar.gz linux-f9425deb662ac07099ec151ffb4791eef48e9d83.tar.bz2 linux-f9425deb662ac07099ec151ffb4791eef48e9d83.zip |
dmaengine: edma: Merge map_dmach_to_queue into assign_channel_eventq
edma_assign_channel_eventq() is a wrapper around edma_map_dmach_to_queue()
We can merge the content of the later so we will have only one function
to be used for mapping channels to given eventq
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/edma.c')
-rw-r--r-- | drivers/dma/edma.c | 56 |
1 files changed, 22 insertions, 34 deletions
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 051a7c4593d4..eaf1f9e4bde0 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -391,22 +391,6 @@ static inline void clear_bits(int offset, int len, unsigned long *p) clear_bit(offset + (len - 1), p); } -static void edma_map_dmach_to_queue(struct edma_chan *echan, - enum dma_event_q queue_no) -{ - struct edma_cc *ecc = echan->ecc; - int channel = EDMA_CHAN_SLOT(echan->ch_num); - int bit = (channel & 0x7) * 4; - - /* default to low priority queue */ - if (queue_no == EVENTQ_DEFAULT) - queue_no = ecc->default_queue; - - queue_no &= 7; - edma_modify_array(ecc, EDMA_DMAQNUM, (channel >> 3), ~(0x7 << bit), - queue_no << bit); -} - static void edma_assign_priority_to_queue(struct edma_cc *ecc, int queue_no, int priority) { @@ -723,6 +707,25 @@ static void edma_clean_channel(struct edma_chan *echan) edma_write(ecc, EDMA_CCERRCLR, BIT(16) | BIT(1) | BIT(0)); } +/* Move channel to a specific event queue */ +static void edma_assign_channel_eventq(struct edma_chan *echan, + enum dma_event_q eventq_no) +{ + struct edma_cc *ecc = echan->ecc; + int channel = EDMA_CHAN_SLOT(echan->ch_num); + int bit = (channel & 0x7) * 4; + + /* default to low priority queue */ + if (eventq_no == EVENTQ_DEFAULT) + eventq_no = ecc->default_queue; + if (eventq_no >= ecc->num_tc) + return; + + eventq_no &= 7; + edma_modify_array(ecc, EDMA_DMAQNUM, (channel >> 3), ~(0x7 << bit), + eventq_no << bit); +} + static int edma_alloc_channel(struct edma_chan *echan, enum dma_event_q eventq_no) { @@ -751,7 +754,7 @@ static int edma_alloc_channel(struct edma_chan *echan, edma_setup_interrupt(echan, true); - edma_map_dmach_to_queue(echan, eventq_no); + edma_assign_channel_eventq(echan, eventq_no); return 0; } @@ -764,21 +767,6 @@ static void edma_free_channel(struct edma_chan *echan) edma_setup_interrupt(echan, false); } -/* Move channel to a specific event queue */ -static void edma_assign_channel_eventq(struct edma_chan *echan, - enum dma_event_q eventq_no) -{ - struct edma_cc *ecc = echan->ecc; - - /* default to low priority queue */ - if (eventq_no == EVENTQ_DEFAULT) - eventq_no = ecc->default_queue; - if (eventq_no >= ecc->num_tc) - return; - - edma_map_dmach_to_queue(echan, eventq_no); -} - static inline struct edma_cc *to_edma_cc(struct dma_device *d) { return container_of(d, struct edma_cc, dma_slave); @@ -2154,8 +2142,8 @@ static int edma_probe(struct platform_device *pdev) for (i = 0; i < ecc->num_channels; i++) { /* Assign all channels to the default queue */ - edma_map_dmach_to_queue(&ecc->slave_chans[i], - info->default_queue); + edma_assign_channel_eventq(&ecc->slave_chans[i], + info->default_queue); /* Set entry slot to the dummy slot */ edma_set_chmap(&ecc->slave_chans[i], ecc->dummy_slot); } |