media: atomisp: Refactor atomisp_adjust_fmt()

Refactor atomisp_adjust_fmt():

1. The block starting at "format_bridge = atomisp_get_format_bridge(...)"
and ending with "if (field == V4L2_FIELD_ANY) field = V4L2_FIELD_NONE;"
is duplicated. With only the second block:
a) Properly checking that format_bridge is not NULL; amd
b) Having the special handling for IA_CSS_FRAME_FORMAT_RAW

Remove the first block.

2. On a NULL return from atomisp_get_format_bridge(f->fmt.pix.pixelformat)
fall back to V4L2_PIX_FMT_YUV420 just like in the IA_CSS_FRAME_FORMAT_RAW
case. atomisp_adjust_fmt() is used in VIDIOC_TRY_FMT handling and that
should jusy pick a fmt rather then returning -EINVAL.

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 90da474..48e3afb 100644 (file)
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -878,29 +878,8 @@ static int atomisp_adjust_fmt(struct v4l2_format *f)
        u32 padded_width;
 
        format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
-
-       padded_width = f->fmt.pix.width + pad_w;
-
-       if (format_bridge->planar) {
-               f->fmt.pix.bytesperline = padded_width;
-               f->fmt.pix.sizeimage = PAGE_ALIGN(f->fmt.pix.height *
-                                                 DIV_ROUND_UP(format_bridge->depth *
-                                                 padded_width, 8));
-       } else {
-               f->fmt.pix.bytesperline = DIV_ROUND_UP(format_bridge->depth *
-                                                     padded_width, 8);
-               f->fmt.pix.sizeimage = PAGE_ALIGN(f->fmt.pix.height * f->fmt.pix.bytesperline);
-       }
-
-       if (f->fmt.pix.field == V4L2_FIELD_ANY)
-               f->fmt.pix.field = V4L2_FIELD_NONE;
-
-       format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
-       if (!format_bridge)
-               return -EINVAL;
-
        /* Currently, raw formats are broken!!! */
-       if (format_bridge->sh_fmt == IA_CSS_FRAME_FORMAT_RAW) {
+       if (!format_bridge || format_bridge->sh_fmt == IA_CSS_FRAME_FORMAT_RAW) {
                f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420;
 
                format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);