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Commit 8c1d8434 authored by Ondrej Zary's avatar Ondrej Zary Committed by Takashi Iwai
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ALSA: ice1712: Add suspend support for M-Audio ICE1712-based cards 



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: default avatarOndrej Zary <linux@rainbow-software.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent ca051e8a

sound/pci/ice1712/delta.c

+29 −1
Original line number Diff line number Diff line
@@ -576,6 +576,30 @@ 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;
@@ -622,7 +646,11 @@ 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;