media: staging: tegra-vde: Silence some of checkpatch warnings

Make all strings single line to make them grep'able and add a comment
to the memory barrier.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/staging/media/tegra-vde/tegra-vde.c b/drivers/staging/media/tegra-vde/tegra-vde.c
index c2ff207..14899c8 100644 (file)
--- a/drivers/staging/media/tegra-vde/tegra-vde.c
+++ b/drivers/staging/media/tegra-vde/tegra-vde.c
@@ -368,6 +368,11 @@ static int tegra_vde_setup_hw_context(struct tegra_vde *vde,
        tegra_vde_setup_iram_tables(vde, dpb_frames,
                                    ctx->dpb_frames_nb - 1,
                                    ctx->dpb_ref_frames_with_earlier_poc_nb);
+
+       /*
+        * The IRAM mapping is write-combine, ensure that CPU buffers have
+        * been flushed at this point.
+        */
        wmb();
 
        VDE_WR(0x00000000, vde->bsev + 0x8C);
@@ -542,15 +547,13 @@ static int tegra_vde_attach_dmabuf(struct device *dev,
        }
 
        if (dmabuf->size & (align_size - 1)) {
-               dev_err(dev, "Unaligned dmabuf 0x%zX, "
-                            "should be aligned to 0x%zX\n",
+               dev_err(dev, "Unaligned dmabuf 0x%zX, should be aligned to 0x%zX\n",
                        dmabuf->size, align_size);
                return -EINVAL;
        }
 
        if ((u64)offset + min_size > dmabuf->size) {
-               dev_err(dev, "Too small dmabuf size %zu @0x%lX, "
-                            "should be at least %zu\n",
+               dev_err(dev, "Too small dmabuf size %zu @0x%lX, should be at least %zu\n",
                        dmabuf->size, offset, min_size);
                return -EINVAL;
        }
@@ -863,8 +866,7 @@ static int tegra_vde_ioctl_decode_h264(struct tegra_vde *vde,
                macroblocks_nb = readl_relaxed(vde->sxe + 0xC8) & 0x1FFF;
                read_bytes = bsev_ptr ? bsev_ptr - bitstream_data_addr : 0;
 
-               dev_err(dev, "Decoding failed: "
-                               "read 0x%X bytes, %u macroblocks parsed\n",
+               dev_err(dev, "Decoding failed: read 0x%X bytes, %u macroblocks parsed\n",
                        read_bytes, macroblocks_nb);
 
                ret = -EIO;