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-rw-r--r--sound/pci/ac97/ac97_codec.c41
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[] = {
194 194
195 195
196static void update_power_regs(struct snd_ac97 *ac97); 196static void update_power_regs(struct snd_ac97 *ac97);
197#ifdef CONFIG_SND_AC97_POWER_SAVE
198#define ac97_is_power_save_mode(ac97) \
199 ((ac97->scaps & AC97_SCAP_POWER_SAVE) && power_save)
200#else
201#define ac97_is_power_save_mode(ac97) 0
202#endif
203
197 204
198/* 205/*
199 * I/O routines 206 * I/O routines
@@ -982,8 +989,7 @@ static int snd_ac97_free(struct snd_ac97 *ac97)
982{ 989{
983 if (ac97) { 990 if (ac97) {
984#ifdef CONFIG_SND_AC97_POWER_SAVE 991#ifdef CONFIG_SND_AC97_POWER_SAVE
985 if (ac97->power_workq) 992 cancel_delayed_work(&ac97->power_work);
986 destroy_workqueue(ac97->power_workq);
987#endif 993#endif
988 snd_ac97_proc_done(ac97); 994 snd_ac97_proc_done(ac97);
989 if (ac97->bus) 995 if (ac97->bus)
@@ -1989,7 +1995,6 @@ int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template,
1989 mutex_init(&ac97->reg_mutex); 1995 mutex_init(&ac97->reg_mutex);
1990 mutex_init(&ac97->page_mutex); 1996 mutex_init(&ac97->page_mutex);
1991#ifdef CONFIG_SND_AC97_POWER_SAVE 1997#ifdef CONFIG_SND_AC97_POWER_SAVE
1992 ac97->power_workq = create_workqueue("ac97");
1993 INIT_DELAYED_WORK(&ac97->power_work, do_update_power); 1998 INIT_DELAYED_WORK(&ac97->power_work, do_update_power);
1994#endif 1999#endif
1995 2000
@@ -2275,15 +2280,13 @@ static void snd_ac97_powerdown(struct snd_ac97 *ac97)
2275 udelay(100); 2280 udelay(100);
2276 power |= AC97_PD_PR2 | AC97_PD_PR3; /* Analog Mixer powerdown */ 2281 power |= AC97_PD_PR2 | AC97_PD_PR3; /* Analog Mixer powerdown */
2277 snd_ac97_write(ac97, AC97_POWERDOWN, power); 2282 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2278#ifdef CONFIG_SND_AC97_POWER_SAVE 2283 if (ac97_is_power_save_mode(ac97)) {
2279 if (power_save) {
2280 udelay(100); 2284 udelay(100);
2281 /* AC-link powerdown, internal Clk disable */ 2285 /* AC-link powerdown, internal Clk disable */
2282 /* FIXME: this may cause click noises on some boards */ 2286 /* FIXME: this may cause click noises on some boards */
2283 power |= AC97_PD_PR4 | AC97_PD_PR5; 2287 power |= AC97_PD_PR4 | AC97_PD_PR5;
2284 snd_ac97_write(ac97, AC97_POWERDOWN, power); 2288 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2285 } 2289 }
2286#endif
2287} 2290}
2288 2291
2289 2292
@@ -2337,14 +2340,16 @@ int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
2337 } 2340 }
2338 } 2341 }
2339 2342
2340 if (power_save && !powerup && ac97->power_workq) 2343 if (ac97_is_power_save_mode(ac97) && !powerup)
2341 /* adjust power-down bits after two seconds delay 2344 /* adjust power-down bits after two seconds delay
2342 * (for avoiding loud click noises for many (OSS) apps 2345 * (for avoiding loud click noises for many (OSS) apps
2343 * that open/close frequently) 2346 * that open/close frequently)
2344 */ 2347 */
2345 queue_delayed_work(ac97->power_workq, &ac97->power_work, HZ*2); 2348 schedule_delayed_work(&ac97->power_work, HZ*2);
2346 else 2349 else {
2350 cancel_delayed_work(&ac97->power_work);
2347 update_power_regs(ac97); 2351 update_power_regs(ac97);
2352 }
2348 2353
2349 return 0; 2354 return 0;
2350} 2355}
@@ -2357,19 +2362,15 @@ static void update_power_regs(struct snd_ac97 *ac97)
2357 unsigned int power_up, bits; 2362 unsigned int power_up, bits;
2358 int i; 2363 int i;
2359 2364
2365 power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2366 power_up |= (1 << PWIDX_MIC);
2367 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2368 power_up |= (1 << PWIDX_SURR);
2369 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2370 power_up |= (1 << PWIDX_CLFE);
2360#ifdef CONFIG_SND_AC97_POWER_SAVE 2371#ifdef CONFIG_SND_AC97_POWER_SAVE
2361 if (power_save) 2372 if (ac97_is_power_save_mode(ac97))
2362 power_up = ac97->power_up; 2373 power_up = ac97->power_up;
2363 else {
2364#endif
2365 power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2366 power_up |= (1 << PWIDX_MIC);
2367 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2368 power_up |= (1 << PWIDX_SURR);
2369 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2370 power_up |= (1 << PWIDX_CLFE);
2371#ifdef CONFIG_SND_AC97_POWER_SAVE
2372 }
2373#endif 2374#endif
2374 if (power_up) { 2375 if (power_up) {
2375 if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) { 2376 if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) {