diff options
Diffstat (limited to 'sound/pci/ice1712/ice1724.c')
| -rw-r--r-- | sound/pci/ice1712/ice1724.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c index 2213bee..514e153 100644 --- a/sound/pci/ice1712/ice1724.c +++ b/sound/pci/ice1712/ice1724.c @@ -118,9 +118,12 @@ static inline int stdclock_is_spdif_master(struct snd_ice1712 *ice) return (inb(ICEMT1724(ice, RATE)) & VT1724_SPDIF_MASTER) ? 1 : 0; } +/* + * locking rate makes sense only for internal clock mode + */ static inline int is_pro_rate_locked(struct snd_ice1712 *ice) { - return ice->is_spdif_master(ice) || PRO_RATE_LOCKED; + return (!ice->is_spdif_master(ice)) && PRO_RATE_LOCKED; } /* @@ -668,16 +671,22 @@ static int snd_vt1724_set_pro_rate(struct snd_ice1712 *ice, unsigned int rate, return -EBUSY; } if (!force && is_pro_rate_locked(ice)) { + /* comparing required and current rate - makes sense for + * internal clock only */ spin_unlock_irqrestore(&ice->reg_lock, flags); return (rate == ice->cur_rate) ? 0 : -EBUSY; } - old_rate = ice->get_rate(ice); - if (force || (old_rate != rate)) - ice->set_rate(ice, rate); - else if (rate == ice->cur_rate) { - spin_unlock_irqrestore(&ice->reg_lock, flags); - return 0; + if (force || !ice->is_spdif_master(ice)) { + /* force means the rate was switched by ucontrol, otherwise + * setting clock rate for internal clock mode */ + old_rate = ice->get_rate(ice); + if (force || (old_rate != rate)) + ice->set_rate(ice, rate); + else if (rate == ice->cur_rate) { + spin_unlock_irqrestore(&ice->reg_lock, flags); + return 0; + } } ice->cur_rate = rate; |
