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media: v4l2: abstract timeval handling in v4l2_buffer

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As a preparation for adding 64-bit time_t support in the uapi,
change the drivers to no longer care about the format of the
timestamp field in struct v4l2_buffer.

The v4l2_timeval_to_ns() function is no longer needed in the
kernel after this, but there is userspace code relying on
it to be part of the uapi header.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: replace spaces by tabs]
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Arnd Bergmann
2019-12-16 15:15:00 +01:00
committed by Mauro Carvalho Chehab
parent 71e37d2e4b
commit 77cdffcb0b
9 changed files with 36 additions and 12 deletions
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2
include/uapi/linux/videodev2.h
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@@ -1017,6 +1017,7 @@ struct v4l2_buffer {
};
};
#ifndef __KERNEL__
/**
* v4l2_timeval_to_ns - Convert timeval to nanoseconds
* @ts: pointer to the timeval variable to be converted
@@ -1028,6 +1029,7 @@ static inline __u64 v4l2_timeval_to_ns(const struct timeval *tv)
{
return (__u64)tv->tv_sec * 1000000000ULL + tv->tv_usec * 1000;
}
#endif
/* Flags for 'flags' field */
/* Buffer is mapped (flag) */