[PATCH 4/7] dmaengine: pl330: Change unused arg "len" from get_burst_len()

From: Joy Chakraborty
Date: Thu May 04 2023 - 10:59:24 EST


Remove unused length argument from get_burst_len() and add burst size as
an argument to allow usage of this function in other places as source and
destination burst sizes are handled separately.

Signed-off-by: Joy Chakraborty <joychakr@xxxxxxxxxx>
---
drivers/dma/pl330.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 746da0bbea92..e5e610c91f18 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2660,8 +2660,7 @@ __pl330_prep_dma_memcpy(struct dma_pl330_chan *pch, dma_addr_t dst,
return desc;
}

-/* Call after fixing burst size */
-static inline int get_burst_len(struct dma_pl330_desc *desc, size_t len)
+static inline int get_burst_len(struct dma_pl330_desc *desc, unsigned int brst_size)
{
struct dma_pl330_chan *pch = desc->pchan;
struct pl330_dmac *pl330 = pch->dmac;
@@ -2669,7 +2668,7 @@ static inline int get_burst_len(struct dma_pl330_desc *desc, size_t len)

burst_len = pl330->pcfg.data_bus_width / 8;
burst_len *= pl330->pcfg.data_buf_dep / pl330->pcfg.num_chan;
- burst_len >>= desc->rqcfg.src_brst_size;
+ burst_len >>= brst_size;

/* src/dst_burst_len can't be more than 16 */
if (burst_len > PL330_MAX_BURST)
@@ -2805,7 +2804,7 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst,
burst /= 2;

desc->rqcfg.src_brst_size = __ffs(burst);
- desc->rqcfg.src_brst_len = get_burst_len(desc, len);
+ desc->rqcfg.src_brst_len = get_burst_len(desc, desc->rqcfg.src_brst_size);
/*
* If burst size is smaller than bus width then make sure we only
* transfer one at a time to avoid a burst stradling an MFIFO entry.
--
2.40.1.495.gc816e09b53d-goog