On 11/20/2018 04:27 PM, Akinobu Mita wrote:
> Documentation/timers/timers-howto.txt says:
> 
> "msleep(1~20) may not do what the caller intends, and will often sleep
> longer (~20 ms actual sleep for any value given in the 1~20ms range)."
> 
> So replace msleep(2) by usleep_range(2000, 3000).

Please just repost patch 6/6 with this change merged in.

Thanks!

        Hans

> 
> Reported-by: Hans Verkuil <hansv...@cisco.com>
> Cc: Matt Ranostay <matt.ranos...@konsulko.com>
> Cc: Sakari Ailus <sakari.ai...@linux.intel.com>
> Cc: Hans Verkuil <hansv...@cisco.com>
> Cc: Mauro Carvalho Chehab <mche...@kernel.org>
> Signed-off-by: Akinobu Mita <akinobu.m...@gmail.com>
> ---
> This fixes "[PATCH v4 6/6] media: video-i2c: support runtime PM" in the
> patchset "[PATCH v4 0/6] media: video-i2c: support changing frame interval
> and runtime PM".
> 
>  drivers/media/i2c/video-i2c.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c
> index 0c82131..77080d7 100644
> --- a/drivers/media/i2c/video-i2c.c
> +++ b/drivers/media/i2c/video-i2c.c
> @@ -155,7 +155,7 @@ static int amg88xx_set_power_on(struct video_i2c_data 
> *data)
>       if (ret)
>               return ret;
>  
> -     msleep(2);
> +     usleep_range(2000, 3000);
>  
>       ret = regmap_write(data->regmap, AMG88XX_REG_RST, AMG88XX_RST_FLAG);
>       if (ret)
> 

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