On Fri, May 5, 2017 at 1:35 AM, Bjorn Andersson
<bjorn.andersson@xxxxxxxxxx> wrote:
> Some mailbox hardware doesn't have to perform any additional operations
> on startup of shutdown, so make these optional.
>
Thanks, makes sense.
> diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c
> index 4671f8a12872..c88de953394a 100644
> --- a/drivers/mailbox/mailbox.c
> +++ b/drivers/mailbox/mailbox.c
> @@ -137,6 +137,20 @@ static enum hrtimer_restart txdone_hrtimer(struct hrtimer *hrtimer)
> return HRTIMER_NORESTART;
> }
>
> +static int mbox_startup(struct mbox_chan *chan)
> +{
> + if (chan->mbox->ops->startup)
> + return chan->mbox->ops->startup(chan);
> +
> + return 0;
> +}
> +
> +static void mbox_shutdown(struct mbox_chan *chan)
> +{
> + if (chan->mbox->ops->shutdown)
> + chan->mbox->ops->shutdown(chan);
> +}
> +
These functions are going to be called from exactly one place. So
maybe we simply do the check before startup/shutdown calls?
thanks.
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