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ALSA: dice: purge transaction initialization at timeout of Dice notification 

In previous commit, card registration is processed under situation
with few bus reset. There's no need to add a workaround of transaction
re-initialization at timeout.

This commit purges the re-initialization.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2015-12-31 13:58:13 +09:00 committed by Takashi Iwai
parent b59fb1900b
commit a2875a92b8
1 changed files with 8 additions and 23 deletions
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31
sound/firewire/dice/dice-transaction.c
View File

@ -65,16 +65,15 @@ static unsigned int get_clock_info(struct snd_dice *dice, __be32 *info)
static int set_clock_info(struct snd_dice *dice,
unsigned int rate, unsigned int source)
{
unsigned int retries = 3;
unsigned int i;
__be32 info;
u32 mask;
u32 clock;
int err;
retry:
err = get_clock_info(dice, &info);
if (err < 0)
goto end;
return err;
clock = be32_to_cpu(info);
if (source != UINT_MAX) {
@ -87,10 +86,8 @@ retry:
if (snd_dice_rates[i] == rate)
break;
}
if (i == ARRAY_SIZE(snd_dice_rates)) {
err = -EINVAL;
goto end;
}
if (i == ARRAY_SIZE(snd_dice_rates))
return -EINVAL;
mask = CLOCK_RATE_MASK;
clock &= ~mask;
@ -104,25 +101,13 @@ retry:
err = snd_dice_transaction_write_global(dice, GLOBAL_CLOCK_SELECT,
&info, 4);
if (err < 0)
goto end;
return err;
/* Timeout means it's invalid request, probably bus reset occurred. */
if (wait_for_completion_timeout(&dice->clock_accepted,
msecs_to_jiffies(NOTIFICATION_TIMEOUT_MS)) == 0) {
if (retries-- == 0) {
err = -ETIMEDOUT;
goto end;
}
msecs_to_jiffies(NOTIFICATION_TIMEOUT_MS)) == 0)
return -ETIMEDOUT;
err = snd_dice_transaction_reinit(dice);
if (err < 0)
goto end;
msleep(500); /* arbitrary */
goto retry;
}
end:
return err;
return 0;
}
int snd_dice_transaction_get_clock_source(struct snd_dice *dice,