dmaengine: qcom: bam_dma: rename BAM_MAX_DATA_SIZE define

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>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c
index 7e5ad1c..969b481 100644 (file)
--- 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;