On Fri, 15 Dec 2017 08:38:30 +0100,
Sagar Arun Kamble wrote:
> 
> With new interface timecounter_initialize we can initialize timecounter
> fields and underlying cyclecounter together. Update azx timecounter
> init with this new function.
> 
> Signed-off-by: Sagar Arun Kamble <[email protected]>
> Cc: Richard Cochran <[email protected]>
> Cc: Jaroslav Kysela <[email protected]>
> Cc: Takashi Iwai <[email protected]>
> Cc: Thomas Gleixner <[email protected]>
> Cc: Vinod Koul <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> ---
>  sound/hda/hdac_stream.c | 14 ++++++--------
>  1 file changed, 6 insertions(+), 8 deletions(-)
> 
> diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
> index 9426c1a..ad91dde 100644
> --- a/sound/hda/hdac_stream.c
> +++ b/sound/hda/hdac_stream.c
> @@ -477,12 +477,8 @@ static void azx_timecounter_init(struct hdac_stream 
> *azx_dev,
>                                bool force, u64 last)
>  {
>       struct timecounter *tc = &azx_dev->tc;
> -     struct cyclecounter *cc = &azx_dev->tc.cc;
>       u64 nsec;
>  
> -     cc->read = azx_cc_read;
> -     cc->mask = CLOCKSOURCE_MASK(32);
> -
>       /*
>        * Converting from 24 MHz to ns means applying a 125/3 factor.
>        * To avoid any saturation issues in intermediate operations,
> @@ -493,11 +489,13 @@ static void azx_timecounter_init(struct hdac_stream 
> *azx_dev,
>        * overflows occur after about 4 hours or less, not a option.
>        */
>  
> -     cc->mult = 125; /* saturation after 195 years */
> -     cc->shift = 0;
> -
>       nsec = 0; /* audio time is elapsed time since trigger */
> -     timecounter_init(tc, nsec);
> +     timecounter_initialize(tc,
> +                            azx_cc_read,
> +                            CLOCKSOURCE_MASK(32),
> +                            125, /* saturation after 195 years */
> +                            0,
> +                            nsec);

Hmm, a function with so many arguments is difficult to remember and is
often error-prone.  By this transition, it becomes harder to read
through.


thanks,

Takashi

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