Add suspend support for M-Audio cards based on ICE1712 chip. Tested with M-Audio Audiophile 24/96. S/PDIF will probably not work.
Signed-off-by: Ondrej Zary linux@rainbow-software.org --- sound/pci/ice1712/delta.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/sound/pci/ice1712/delta.c b/sound/pci/ice1712/delta.c index 9e28cc1..c19ae72 100644 --- a/sound/pci/ice1712/delta.c +++ b/sound/pci/ice1712/delta.c @@ -575,6 +575,30 @@ static struct snd_ak4xxx_private akm_vx442_priv = { .mask_flags = 0, };
+#ifdef CONFIG_PM_SLEEP +static int snd_ice1712_delta_resume(struct snd_ice1712 *ice) +{ + unsigned char akm_backup[AK4XXX_IMAGE_SIZE]; + /* init codec and restore registers */ + if (ice->akm_codecs) { + memcpy(akm_backup, ice->akm->images, sizeof(akm_backup)); + snd_akm4xxx_init(ice->akm); + memcpy(ice->akm->images, akm_backup, sizeof(akm_backup)); + snd_akm4xxx_reset(ice->akm, 0); + } + + return 0; +} + +static int snd_ice1712_delta_suspend(struct snd_ice1712 *ice) +{ + if (ice->akm_codecs) /* reset & mute codec */ + snd_akm4xxx_reset(ice->akm, 1); + + return 0; +} +#endif + static int snd_ice1712_delta_init(struct snd_ice1712 *ice) { int err; @@ -621,7 +645,11 @@ static int snd_ice1712_delta_init(struct snd_ice1712 *ice) ice->num_total_adcs = 4; break; } - +#ifdef CONFIG_PM_SLEEP + ice->pm_resume = snd_ice1712_delta_resume; + ice->pm_suspend = snd_ice1712_delta_suspend; + ice->pm_suspend_enabled = 1; +#endif /* initialize the SPI clock to high */ tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA); tmp |= ICE1712_DELTA_AP_CCLK;