hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ALSA: ice1712: Save/restore routing and rate registers 

Save/restore routing and rate registers during suspend/resume.
This fixes S/PDIF input being disabled after resume.
Tested with Audiophile 24/96.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Ondrej Zary 2014-04-03 23:09:38 +02:00 committed by Takashi Iwai
parent 6e61246f5a
commit 6ea0cae73d
1 changed files with 32 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
sound/pci/ice1712/ice1712.c
View File

@ -1048,6 +1048,8 @@ __out:
old = inb(ICEMT(ice, RATE));
if (!force && old == val)
goto __out;
ice->cur_rate = rate;
outb(val, ICEMT(ice, RATE));
spin_unlock_irqrestore(&ice->reg_lock, flags);
@ -2832,6 +2834,12 @@ static int snd_ice1712_suspend(struct device *dev)
snd_pcm_suspend_all(ice->pcm_ds);
snd_ac97_suspend(ice->ac97);
spin_lock_irq(&ice->reg_lock);
ice->pm_saved_is_spdif_master = is_spdif_master(ice);
ice->pm_saved_spdif_ctrl = inw(ICEMT(ice, ROUTE_SPDOUT));
ice->pm_saved_route = inw(ICEMT(ice, ROUTE_PSDOUT03));
spin_unlock_irq(&ice->reg_lock);
if (ice->pm_suspend)
ice->pm_suspend(ice);
@ -2846,6 +2854,7 @@ static int snd_ice1712_resume(struct device *dev)
struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct snd_ice1712 *ice = card->private_data;
int rate;
if (!ice->pm_suspend_enabled)
return 0;
@ -2860,14 +2869,37 @@ static int snd_ice1712_resume(struct device *dev)
pci_set_master(pci);
if (ice->cur_rate)
rate = ice->cur_rate;
else
rate = PRO_RATE_DEFAULT;
if (snd_ice1712_chip_init(ice) < 0) {
snd_card_disconnect(card);
return -EIO;
}
ice->cur_rate = rate;
if (ice->pm_resume)
ice->pm_resume(ice);
if (ice->pm_saved_is_spdif_master) {
/* switching to external clock via SPDIF */
spin_lock_irq(&ice->reg_lock);
outb(inb(ICEMT(ice, RATE)) | ICE1712_SPDIF_MASTER,
ICEMT(ice, RATE));
spin_unlock_irq(&ice->reg_lock);
snd_ice1712_set_input_clock_source(ice, 1);
} else {
/* internal on-card clock */
snd_ice1712_set_pro_rate(ice, rate, 1);
snd_ice1712_set_input_clock_source(ice, 0);
}
outw(ice->pm_saved_spdif_ctrl, ICEMT(ice, ROUTE_SPDOUT));
outw(ice->pm_saved_route, ICEMT(ice, ROUTE_PSDOUT03));
if (ice->ac97)
snd_ac97_resume(ice->ac97);