On Fri, Oct 10, 2008 at 06:15:17PM +0300, ext-jukka.hynninen@xxxxxxxxxxx wrote:
> However, there seems to be some problem with PM, occasionally ASoC is
> stuck with Standby mode (looking at dapm_widgets) when I start the
> playback. Restarting the player brings the sound back. I'll carry out
> some further investigation and get back to this.
How does this compare with the behaviour of the original at32 machine
support - did that have similar issues?
> The SSC peripheral clock was disabled more often than it was enabled,
> and that catched the bug trap in arch/arm/mach-at91/clock.c. I'm not
> sure if this was the real problem, but it's the way I managed to solve
> it.
Looks reasonable to me.
> diff -uprN a/sound/soc/atmel/atmel_ssc_dai.c
> b/sound/soc/atmel/atmel_ssc_dai.c
> --- a/sound/soc/atmel/atmel_ssc_dai.c 2008-10-10 17:23:46.000000000
> +0300
> +++ b/sound/soc/atmel/atmel_ssc_dai.c 2008-10-10 17:26:06.000000000
> +0300
> @@ -261,11 +261,11 @@ static void atmel_ssc_shutdown(struct sn
> spin_lock_irq(&ssc_p->lock);
> ssc_p->dir_mask &= ~dir_mask;
> if (!ssc_p->dir_mask) {
> - /* Shutdown the SSC clock. */
> - pr_debug("atmel_ssc_dau: Stopping clock\n");
> - clk_disable(ssc_p->ssc->clk);
> -
> if (ssc_p->initialized) {
> + /* Shutdown the SSC clock. */
> + pr_debug("atmel_ssc_dai: Stopping clock\n");
> + clk_disable(ssc_p->ssc->clk);
> +
> free_irq(ssc_p->ssc->irq, ssc_p);
> ssc_p->initialized = 0;
> }
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