[PATCH v2 5/5] dmaengine: qcom: bam_dma: rename BAM_MAX_DATA_SIZE define

Stanimir Varbanov
2016-04-05T22:57:42Z

It seems that the define has not been with acurate name and
makes confusion while reading the code. The more acurate
name should be BAM_FIFO_SIZE.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
---
drivers/dma/qcom/bam_dma.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c
index 7e5ad1c25e21..969b48176745 100644
--- a/drivers/dma/qcom/bam_dma.c
+++ b/drivers/dma/qcom/bam_dma.c
@@ -342,7 +342,7 @@ static const struct reg_offset_data bam_v1_7_reg_info[] = {

#define BAM_DESC_FIFO_SIZE SZ_32K
#define MAX_DESCRIPTORS (BAM_DESC_FIFO_SIZE / sizeof(struct bam_desc_hw) - 1)
-#define BAM_MAX_DATA_SIZE (SZ_32K - 8)
+#define BAM_FIFO_SIZE (SZ_32K - 8)

struct bam_chan {
struct virt_dma_chan vc;
@@ -459,7 +459,7 @@ static void bam_chan_init_hw(struct bam_chan *bchan,
*/
writel_relaxed(ALIGN(bchan->fifo_phys, sizeof(struct bam_desc_hw)),
bam_addr(bdev, bchan->id, BAM_P_DESC_FIFO_ADDR));
- writel_relaxed(BAM_MAX_DATA_SIZE,
+ writel_relaxed(BAM_FIFO_SIZE,
bam_addr(bdev, bchan->id, BAM_P_FIFO_SIZES));

/* enable the per pipe interrupts, enable EOT, ERR, and INT irqs */
@@ -605,7 +605,7 @@ static struct dma_async_tx_descriptor *bam_prep_slave_sg(struct dma_chan *chan,

/* calculate number of required entries */
for_each_sg(sgl, sg, sg_len, i)
- num_alloc += DIV_ROUND_UP(sg_dma_len(sg), BAM_MAX_DATA_SIZE);
+ num_alloc += DIV_ROUND_UP(sg_dma_len(sg), BAM_FIFO_SIZE);

/* allocate enough room to accomodate the number of entries */
async_desc = kzalloc(sizeof(*async_desc) +
@@ -636,10 +636,10 @@ static struct dma_async_tx_descriptor *bam_prep_slave_sg(struct dma_chan *chan,
desc->addr = cpu_to_le32(sg_dma_address(sg) +
curr_offset);

- if (remainder > BAM_MAX_DATA_SIZE) {
- desc->size = cpu_to_le16(BAM_MAX_DATA_SIZE);
- remainder -= BAM_MAX_DATA_SIZE;
- curr_offset += BAM_MAX_DATA_SIZE;
+ if (remainder > BAM_FIFO_SIZE) {
+ desc->size = cpu_to_le16(BAM_FIFO_SIZE);
+ remainder -= BAM_FIFO_SIZE;
+ curr_offset += BAM_FIFO_SIZE;
} else {
desc->size = cpu_to_le16(remainder);
remainder = 0;
@@ -1174,7 +1174,7 @@ static int bam_dma_probe(struct platform_device *pdev)
/* set max dma segment size */
bdev->common.dev = bdev->dev;
bdev->common.dev->dma_parms = &bdev->dma_parms;
- ret = dma_set_max_seg_size(bdev->common.dev, BAM_MAX_DATA_SIZE);
+ ret = dma_set_max_seg_size(bdev->common.dev, BAM_FIFO_SIZE);
if (ret) {
dev_err(bdev->dev, "cannot set maximum segment size\n");
goto err_bam_channel_exit;
--
1.9.1