DMA: PL08x: clean up LLI debugging

Clean up debugging when setting up the LLI list.  This reduces the
amount of output while preserving the information, and makes it easier
to read.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index 6808f7d..1c641bf 100644 (file)
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -617,25 +617,15 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x,
        /* Set up the bus widths to the maximum */
        bd.srcbus.buswidth = bd.srcbus.maxwidth;
        bd.dstbus.buswidth = bd.dstbus.maxwidth;
-       dev_vdbg(&pl08x->adev->dev,
-                "%s source bus is %d bytes wide, dest bus is %d bytes wide\n",
-                __func__, bd.srcbus.buswidth, bd.dstbus.buswidth);
-
 
        /*
         * Bytes transferred == tsize * MIN(buswidths), not max(buswidths)
         */
        max_bytes_per_lli = min(bd.srcbus.buswidth, bd.dstbus.buswidth) *
                PL080_CONTROL_TRANSFER_SIZE_MASK;
-       dev_vdbg(&pl08x->adev->dev,
-                "%s max bytes per lli = %zu\n",
-                __func__, max_bytes_per_lli);
 
        /* We need to count this down to zero */
        bd.remainder = txd->len;
-       dev_vdbg(&pl08x->adev->dev,
-                "%s remainder = %zu\n",
-                __func__, bd.remainder);
 
        /*
         * Choose bus to align to
@@ -644,6 +634,16 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x,
         */
        pl08x_choose_master_bus(&bd, &mbus, &sbus, cctl);
 
+       dev_vdbg(&pl08x->adev->dev, "src=0x%08x%s/%u dst=0x%08x%s/%u len=%zu llimax=%zu\n",
+                bd.srcbus.addr, cctl & PL080_CONTROL_SRC_INCR ? "+" : "",
+                bd.srcbus.buswidth,
+                bd.dstbus.addr, cctl & PL080_CONTROL_DST_INCR ? "+" : "",
+                bd.dstbus.buswidth,
+                bd.remainder, max_bytes_per_lli);
+       dev_vdbg(&pl08x->adev->dev, "mbus=%s sbus=%s\n",
+                mbus == &bd.srcbus ? "src" : "dst",
+                sbus == &bd.srcbus ? "src" : "dst");
+
        if (txd->len < mbus->buswidth) {
                /* Less than a bus width available - send as single bytes */
                while (bd.remainder) {
@@ -835,15 +835,14 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x,
        {
                int i;
 
+               dev_vdbg(&pl08x->adev->dev,
+                        "%-3s %-9s  %-10s %-10s %-10s %s\n",
+                        "lli", "", "csrc", "cdst", "clli", "cctl");
                for (i = 0; i < num_llis; i++) {
                        dev_vdbg(&pl08x->adev->dev,
-                                "lli %d @%p: csrc=0x%08x, cdst=0x%08x, cctl=0x%08x, clli=0x%08x\n",
-                                i,
-                                &llis_va[i],
-                                llis_va[i].src,
-                                llis_va[i].dst,
-                                llis_va[i].cctl,
-                                llis_va[i].lli
+                                "%3d @%p: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+                                i, &llis_va[i], llis_va[i].src,
+                                llis_va[i].dst, llis_va[i].lli, llis_va[i].cctl
                                );
                }
        }