Ignore spurious HV interrupts during suspend / resume, this avoids mistaking them for a mute button press. This is not very pretty but it seems the only way to fix the master volume control gets muted after suspend issue I'm seeing. Note that the es1968 driver is doing exactly the same.
Signed-off-by: Hans de Goede hdegoede@redhat.com --- sound/pci/maestro3.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c index c6593cf..0ed634a 100644 --- a/sound/pci/maestro3.c +++ b/sound/pci/maestro3.c @@ -849,6 +849,7 @@ struct snd_m3 { struct snd_kcontrol *master_switch; struct snd_kcontrol *master_volume; struct tasklet_struct hwvol_tq; + unsigned int in_suspend;
#ifdef CONFIG_PM u16 *suspend_mem; @@ -1626,6 +1627,11 @@ static void snd_m3_update_hw_volume(unsigned long private_data) outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER); outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
+ /* Ignore spurious HV interrupts during suspend / resume, this avoids + mistaking them for a mute button press. */ + if (chip->in_suspend) + return; + if (!chip->master_switch || !chip->master_volume) return;
@@ -2439,6 +2445,7 @@ static int m3_suspend(struct pci_dev *pci, pm_message_t state) if (chip->suspend_mem == NULL) return 0;
+ chip->in_suspend = 1; snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); snd_pcm_suspend_all(chip->pcm); snd_ac97_suspend(chip->ac97); @@ -2512,6 +2519,7 @@ static int m3_resume(struct pci_dev *pci) snd_m3_hv_init(chip);
snd_power_change_state(card, SNDRV_CTL_POWER_D0); + chip->in_suspend = 0; return 0; } #endif /* CONFIG_PM */