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authorTakashi Iwai <tiwai@suse.de>2012-03-13 08:07:41 +0100
committerTakashi Iwai <tiwai@suse.de>2012-03-13 08:12:33 +0100
commit28aa165cc52fa686a55a2a2052fdddad0fbde5eb (patch)
treea445f5a0f8ad0915aece24b36c957d100f5cd77c
parentbd483d4c6c65c1c48483f2f81c603d42b39ce83b (diff)
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>
-rw-r--r--include/sound/ymfpci.h2
-rw-r--r--sound/pci/ymfpci/ymfpci_main.c9
2 files changed, 11 insertions, 0 deletions
diff --git a/include/sound/ymfpci.h b/include/sound/ymfpci.h
index 444cd6ba0ba..41199664666 100644
--- a/include/sound/ymfpci.h
+++ b/include/sound/ymfpci.h
@@ -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
};
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 03ee4e36531..a3a2eababc0 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -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);