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authorMauro Carvalho Chehab <mchehab@s-opensource.com>2017-09-22 09:03:54 -0400
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-12-18 09:25:26 -0500
commit76a59fe77022cb01df8b866d09f23c37e9af8924 (patch)
tree09a1e71d1a21704257a4323ca17f8ff0b02b5207 /drivers/media/v4l2-core/v4l2-common.c
parentmedia: v4l2-common: get rid of struct v4l2_discrete_probe (diff)
downloadlinux-dev-76a59fe77022cb01df8b866d09f23c37e9af8924.tar.xz
linux-dev-76a59fe77022cb01df8b866d09f23c37e9af8924.zip
media: v4l2-common.h: document helper functions
There are several helper functions that aren't documented. Document them. Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-common.c')
-rw-r--r--drivers/media/v4l2-core/v4l2-common.c14
1 files changed, 0 insertions, 14 deletions
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index 35f20e7e6307..8650ad92b64d 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -320,20 +320,6 @@ static unsigned int clamp_align(unsigned int x, unsigned int min,
return x;
}
-/* Bound an image to have a width between wmin and wmax, and height between
- * hmin and hmax, inclusive. Additionally, the width will be a multiple of
- * 2^walign, the height will be a multiple of 2^halign, and the overall size
- * (width*height) will be a multiple of 2^salign. The image may be shrunk
- * or enlarged to fit the alignment constraints.
- *
- * The width or height maximum must not be smaller than the corresponding
- * minimum. The alignments must not be so high there are no possible image
- * sizes within the allowed bounds. wmin and hmin must be at least 1
- * (don't use 0). If you don't care about a certain alignment, specify 0,
- * as 2^0 is 1 and one byte alignment is equivalent to no alignment. If
- * you only want to adjust downward, specify a maximum that's the same as
- * the initial value.
- */
void v4l_bound_align_image(u32 *w, unsigned int wmin, unsigned int wmax,
unsigned int walign,
u32 *h, unsigned int hmin, unsigned int hmax,