Commit a41231d5 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab

[media] v4l2-common: add a debug macro to be used with dev_foo()

Currently, there's a mess at the V4L2 printk macros: some drivers
use their own macros, others use pr_foo() or v4l_foo() macros,
while more modern drivers use dev_foo() macros.

The best is to get rid of v4l_foo() macros, as they can be
replaced by either dev_foo() or pr_foo(). Yet, such change can
be disruptive, as dev_foo() cannot use KERN_CONT. So, the best
is to do such change driver by driver.

There are replacements for most v4l_foo() macros, but it lacks
a way to enable debug messages per level. So, add such macro,
in order to make the conversion easier.
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 680d87c0
......@@ -55,6 +55,13 @@
v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \
} while (0)
/* Add a version of v4l_dbg to be used on drivers using dev_foo() macros */
#define dev_dbg_lvl(__dev, __level, __debug, __fmt, __arg...) \
do { \
if (__debug >= (__level)) \
dev_printk(KERN_DEBUG, __dev, __fmt, ##__arg); \
} while (0)
/* ------------------------------------------------------------------------- */
/* These printk constructs can be used with v4l2_device and v4l2_subdev */
......
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