[PATCH 4/5] ov13858: Use v4l2_find_nearest_size

[Sakari Ailus]

Use v4l2_find_nearest_size instead of a driver specific function to find
nearest matching size.

Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
---
 drivers/media/i2c/ov13858.c | 37 +++----------------------------------
 1 file changed, 3 insertions(+), 34 deletions(-)

diff --git a/drivers/media/i2c/ov13858.c b/drivers/media/i2c/ov13858.c
index bf7d06f..a7c42f8 100644
--- a/drivers/media/i2c/ov13858.c
+++ b/drivers/media/i2c/ov13858.c
@@ -1348,39 +1348,6 @@ static int ov13858_get_pad_format(struct v4l2_subdev *sd,
        return ret;
 }
 
-/*
- * Calculate resolution distance
- */
-static int
-ov13858_get_resolution_dist(const struct ov13858_mode *mode,
-                           struct v4l2_mbus_framefmt *framefmt)
-{
-       return abs(mode->width - framefmt->width) +
-              abs(mode->height - framefmt->height);
-}
-
-/*
- * Find the closest supported resolution to the requested resolution
- */
-static const struct ov13858_mode *
-ov13858_find_best_fit(struct ov13858 *ov13858,
-                     struct v4l2_subdev_format *fmt)
-{
-       int i, dist, cur_best_fit = 0, cur_best_fit_dist = -1;
-       struct v4l2_mbus_framefmt *framefmt = &fmt->format;
-
-       for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
-               dist = ov13858_get_resolution_dist(&supported_modes[i],
-                                                  framefmt);
-               if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
-                       cur_best_fit_dist = dist;
-                       cur_best_fit = i;
-               }
-       }
-
-       return &supported_modes[cur_best_fit];
-}
-
 static int
 ov13858_set_pad_format(struct v4l2_subdev *sd,
                       struct v4l2_subdev_pad_config *cfg,
@@ -1401,7 +1368,9 @@ ov13858_set_pad_format(struct v4l2_subdev *sd,
        if (fmt->format.code != MEDIA_BUS_FMT_SGRBG10_1X10)
                fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
 
-       mode = ov13858_find_best_fit(ov13858, fmt);
+       mode = v4l2_find_nearest_size(
+               supported_modes, ARRAY_SIZE(supported_modes), width, height,
+               fmt->format.width, fmt->format.height);
        ov13858_update_pad_format(mode, fmt);
        if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
                framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
-- 
2.7.4