diff options
| author | Daniel Mack <zonque@gmail.com> | 2013-10-22 12:14:04 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-11-12 14:28:24 +0530 |
| commit | 706ff628f0669f28e370d2ad30672e5032dc64b2 (patch) | |
| tree | dcea40f3a3b086e03c7c64680873f0b9ef84bc16 /drivers/dma | |
| parent | f8964968ab841cb28b0999f346ee3c2491076257 (diff) | |
| download | blackbird-op-linux-706ff628f0669f28e370d2ad30672e5032dc64b2.tar.gz blackbird-op-linux-706ff628f0669f28e370d2ad30672e5032dc64b2.zip | |
dma: cppi41: use cppi41_pop_desc() where possible
Use cppi41_pop_desc() when appropriate instead of open-coding the same
functionality again. That makes the code more readable. The function has
to be moved some lines up for this change.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/cppi41.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c index 7a90317d2e7d..2500f60393f4 100644 --- a/drivers/dma/cppi41.c +++ b/drivers/dma/cppi41.c @@ -266,6 +266,15 @@ static u32 pd_trans_len(u32 val) return val & ((1 << (DESC_LENGTH_BITS_NUM + 1)) - 1); } +static u32 cppi41_pop_desc(struct cppi41_dd *cdd, unsigned queue_num) +{ + u32 desc; + + desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(queue_num)); + desc &= ~0x1f; + return desc; +} + static irqreturn_t cppi41_irq(int irq, void *data) { struct cppi41_dd *cdd = data; @@ -303,8 +312,7 @@ static irqreturn_t cppi41_irq(int irq, void *data) q_num = __fls(val); val &= ~(1 << q_num); q_num += 32 * i; - desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(q_num)); - desc &= ~0x1f; + desc = cppi41_pop_desc(cdd, q_num); c = desc_to_chan(cdd, desc); if (WARN_ON(!c)) { pr_err("%s() q %d desc %08x\n", __func__, @@ -520,15 +528,6 @@ static void cppi41_compute_td_desc(struct cppi41_desc *d) d->pd0 = DESC_TYPE_TEARD << DESC_TYPE; } -static u32 cppi41_pop_desc(struct cppi41_dd *cdd, unsigned queue_num) -{ - u32 desc; - - desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(queue_num)); - desc &= ~0x1f; - return desc; -} - static int cppi41_tear_down_chan(struct cppi41_channel *c) { struct cppi41_dd *cdd = c->cdd; @@ -612,7 +611,7 @@ static int cppi41_tear_down_chan(struct cppi41_channel *c) WARN_ON(!c->td_retry); if (!c->td_desc_seen) { - desc_phys = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(c->q_num)); + desc_phys = cppi41_pop_desc(cdd, c->q_num); WARN_ON(!desc_phys); } |
