There's a nice macro to calculate the destination pitch that already takes
into account sub-byte pixel formats. Use that instead of open coding it.

Suggested-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Javier Martinez Canillas <[email protected]>
---

 drivers/gpu/drm/tests/drm_format_helper_test.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c 
b/drivers/gpu/drm/tests/drm_format_helper_test.c
index bfa47f8ffd09..474bb7a1c4ee 100644
--- a/drivers/gpu/drm/tests/drm_format_helper_test.c
+++ b/drivers/gpu/drm/tests/drm_format_helper_test.c
@@ -440,15 +440,12 @@ static size_t conversion_buf_size(u32 dst_format, 
unsigned int dst_pitch,
                                  const struct drm_rect *clip)
 {
        const struct drm_format_info *dst_fi = drm_format_info(dst_format);
-       unsigned int bpp;
 
        if (!dst_fi)
                return -EINVAL;
 
-       if (!dst_pitch) {
-               bpp = drm_format_info_bpp(dst_fi, 0);
-               dst_pitch = DIV_ROUND_UP(drm_rect_width(clip) * bpp, 8);
-       }
+       if (!dst_pitch)
+               dst_pitch = drm_format_info_min_pitch(dst_fi, 0, 
drm_rect_width(clip));
 
        return dst_pitch * drm_rect_height(clip);
 }

base-commit: 165d5133731a2e045abdd6d9d3c9221fdc2a556e
-- 
2.39.2

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