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ALSA: ymfpci - Fix legacy registers on S3/S4 resume 

We need to resume two legacy registers to recover MIDI/FM functionality
on S3/S4 resume, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2012-03-13 08:07:41 +01:00
parent bd483d4c6c
commit 28aa165cc5
2 changed files with 11 additions and 0 deletions
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2
include/sound/ymfpci.h
View File

@ -366,6 +366,8 @@ struct snd_ymfpci {
#ifdef CONFIG_PM
u32 *saved_regs;
u32 saved_ydsxgr_mode;
u16 saved_dsxg_legacy;
u16 saved_dsxg_elegacy;
#endif
};

9
sound/pci/ymfpci/ymfpci_main.c
View File

@ -2310,6 +2310,10 @@ int snd_ymfpci_suspend(struct pci_dev *pci, pm_message_t state)
for (i = 0; i < YDSXGR_NUM_SAVED_REGS; i++)
chip->saved_regs[i] = snd_ymfpci_readl(chip, saved_regs_index[i]);
chip->saved_ydsxgr_mode = snd_ymfpci_readl(chip, YDSXGR_MODE);
pci_read_config_word(chip->pci, PCIR_DSXG_LEGACY,
&chip->saved_dsxg_legacy);
pci_read_config_word(chip->pci, PCIR_DSXG_ELEGACY,
&chip->saved_dsxg_elegacy);
snd_ymfpci_writel(chip, YDSXGR_NATIVEDACOUTVOL, 0);
snd_ymfpci_writel(chip, YDSXGR_BUF441OUTVOL, 0);
snd_ymfpci_disable_dsp(chip);
@ -2344,6 +2348,11 @@ int snd_ymfpci_resume(struct pci_dev *pci)
snd_ac97_resume(chip->ac97);
pci_write_config_word(chip->pci, PCIR_DSXG_LEGACY,
chip->saved_dsxg_legacy);
pci_write_config_word(chip->pci, PCIR_DSXG_ELEGACY,
chip->saved_dsxg_elegacy);
/* start hw again */
if (chip->start_count > 0) {
spin_lock_irq(&chip->reg_lock);