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dmaengine: ti: k3-udma: Remove udma_chan.in_ring_cnt

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The in_ring_cnt is not used for anything, it can be removed.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200512134611.6015-1-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Peter Ujfalusi 2020-05-12 16:46:11 +03:00 committed by Vinod Koul
parent 5bbeea34bc
commit 6fea8735fd
1 changed files with 1 additions and 15 deletions
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16
drivers/dma/ti/k3-udma.c
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@ -231,7 +231,6 @@ struct udma_chan {
struct udma_tx_drain tx_drain;
u32 bcnt; /* number of bytes completed since the start of the channel */
u32 in_ring_cnt; /* number of descriptors in flight */
/* Channel configuration parameters */
struct udma_chan_config config;
@ -574,7 +573,6 @@ static int udma_push_to_ring(struct udma_chan *uc, int idx)
struct udma_desc *d = uc->desc;
struct k3_ring *ring = NULL;
dma_addr_t paddr;
int ret;
switch (uc->config.dir) {
case DMA_DEV_TO_MEM:
@ -598,11 +596,7 @@ static int udma_push_to_ring(struct udma_chan *uc, int idx)
udma_sync_for_device(uc, idx);
}
ret = k3_ringacc_ring_push(ring, &paddr);
if (!ret)
uc->in_ring_cnt++;
return ret;
return k3_ringacc_ring_push(ring, &paddr);
}
static bool udma_desc_is_rx_flush(struct udma_chan *uc, dma_addr_t addr)
@ -655,9 +649,6 @@ static int udma_pop_from_ring(struct udma_chan *uc, dma_addr_t *addr)
d->hwdesc[0].cppi5_desc_size,
DMA_FROM_DEVICE);
rmb(); /* Ensure that reads are not moved before this point */
if (!ret)
uc->in_ring_cnt--;
}
return ret;
@ -697,8 +688,6 @@ static void udma_reset_rings(struct udma_chan *uc)
udma_desc_free(&uc->terminated_desc->vd);
uc->terminated_desc = NULL;
}
uc->in_ring_cnt = 0;
}
static void udma_reset_counters(struct udma_chan *uc)
@ -1073,9 +1062,6 @@ static irqreturn_t udma_ring_irq_handler(int irq, void *data)
/* Teardown completion message */
if (cppi5_desc_is_tdcm(paddr)) {
/* Compensate our internal pop/push counter */
uc->in_ring_cnt++;
complete_all(&uc->teardown_completed);
if (uc->terminated_desc) {