From cf326dfebe612bf56c83d8fca7a7c1d1584c061f Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 28 Aug 2013 10:28:26 -0300 Subject: [media] V4L2: add v4l2-clock helpers to register and unregister a fixed-rate clock Many bridges and video host controllers supply fixed rate always on clocks to their I2C devices. This patch adds two simple helpers to register and unregister such a clock. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-clk.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-clk.h b/include/media/v4l2-clk.h index 0503a90b48bb..a354a9d6456e 100644 --- a/include/media/v4l2-clk.h +++ b/include/media/v4l2-clk.h @@ -15,6 +15,7 @@ #define MEDIA_V4L2_CLK_H #include +#include #include #include @@ -51,4 +52,17 @@ void v4l2_clk_disable(struct v4l2_clk *clk); unsigned long v4l2_clk_get_rate(struct v4l2_clk *clk); int v4l2_clk_set_rate(struct v4l2_clk *clk, unsigned long rate); +struct module; + +struct v4l2_clk *__v4l2_clk_register_fixed(const char *dev_id, + const char *id, unsigned long rate, struct module *owner); +void v4l2_clk_unregister_fixed(struct v4l2_clk *clk); + +static inline struct v4l2_clk *v4l2_clk_register_fixed(const char *dev_id, + const char *id, + unsigned long rate) +{ + return __v4l2_clk_register_fixed(dev_id, id, rate, THIS_MODULE); +} + #endif -- cgit v1.2.3