diff options
Diffstat (limited to 'sound/pci/ac97/ac97_codec.c')
| -rw-r--r-- | sound/pci/ac97/ac97_codec.c | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c index d2994cb4c8c9..9da4977c0a0c 100644 --- a/sound/pci/ac97/ac97_codec.c +++ b/sound/pci/ac97/ac97_codec.c @@ -194,6 +194,13 @@ static const struct ac97_codec_id snd_ac97_codec_ids[] = { static void update_power_regs(struct snd_ac97 *ac97); +#ifdef CONFIG_SND_AC97_POWER_SAVE +#define ac97_is_power_save_mode(ac97) \ + ((ac97->scaps & AC97_SCAP_POWER_SAVE) && power_save) +#else +#define ac97_is_power_save_mode(ac97) 0 +#endif + /* * I/O routines @@ -982,8 +989,7 @@ static int snd_ac97_free(struct snd_ac97 *ac97) { if (ac97) { #ifdef CONFIG_SND_AC97_POWER_SAVE - if (ac97->power_workq) - destroy_workqueue(ac97->power_workq); + cancel_delayed_work(&ac97->power_work); #endif snd_ac97_proc_done(ac97); if (ac97->bus) @@ -1989,7 +1995,6 @@ int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, mutex_init(&ac97->reg_mutex); mutex_init(&ac97->page_mutex); #ifdef CONFIG_SND_AC97_POWER_SAVE - ac97->power_workq = create_workqueue("ac97"); INIT_DELAYED_WORK(&ac97->power_work, do_update_power); #endif @@ -2275,15 +2280,13 @@ static void snd_ac97_powerdown(struct snd_ac97 *ac97) udelay(100); power |= AC97_PD_PR2 | AC97_PD_PR3; /* Analog Mixer powerdown */ snd_ac97_write(ac97, AC97_POWERDOWN, power); -#ifdef CONFIG_SND_AC97_POWER_SAVE - if (power_save) { + if (ac97_is_power_save_mode(ac97)) { udelay(100); /* AC-link powerdown, internal Clk disable */ /* FIXME: this may cause click noises on some boards */ power |= AC97_PD_PR4 | AC97_PD_PR5; snd_ac97_write(ac97, AC97_POWERDOWN, power); } -#endif } @@ -2337,14 +2340,16 @@ int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup) } } - if (power_save && !powerup && ac97->power_workq) + if (ac97_is_power_save_mode(ac97) && !powerup) /* adjust power-down bits after two seconds delay * (for avoiding loud click noises for many (OSS) apps * that open/close frequently) */ - queue_delayed_work(ac97->power_workq, &ac97->power_work, HZ*2); - else + schedule_delayed_work(&ac97->power_work, HZ*2); + else { + cancel_delayed_work(&ac97->power_work); update_power_regs(ac97); + } return 0; } @@ -2357,19 +2362,15 @@ static void update_power_regs(struct snd_ac97 *ac97) unsigned int power_up, bits; int i; + power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC); + power_up |= (1 << PWIDX_MIC); + if (ac97->scaps & AC97_SCAP_SURROUND_DAC) + power_up |= (1 << PWIDX_SURR); + if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) + power_up |= (1 << PWIDX_CLFE); #ifdef CONFIG_SND_AC97_POWER_SAVE - if (power_save) + if (ac97_is_power_save_mode(ac97)) power_up = ac97->power_up; - else { -#endif - power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC); - power_up |= (1 << PWIDX_MIC); - if (ac97->scaps & AC97_SCAP_SURROUND_DAC) - power_up |= (1 << PWIDX_SURR); - if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) - power_up |= (1 << PWIDX_CLFE); -#ifdef CONFIG_SND_AC97_POWER_SAVE - } #endif if (power_up) { if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) { |