[alsa-devel] [PATCH] snd-opti9xx: Implement suspend/resume

[Takashi Iwai]

At Tue, 17 Jul 2012 09:16:44 +0200,
Ondrej Zary wrote:
> 
> Implement suspend/resume support for Opti 92x and 93x chips.
> Tested with Opti 929A+AD1848 and Opti 931.
> 
> Signed-off-by: Ondrej Zary <linux at rainbow-software.org>

Applied now.  Thanks.


Takashi

> 
> --- a/sound/isa/opti9xx/opti92x-ad1848.c
> +++ b/sound/isa/opti9xx/opti92x-ad1848.c
> @@ -136,8 +136,8 @@ struct snd_opti9xx {
>  #ifdef OPTi93X
>  	unsigned long mc_indir_index;
>  	struct resource *res_mc_indir;
> -	struct snd_wss *codec;
>  #endif	/* OPTi93X */
> +	struct snd_wss *codec;
>  	unsigned long pwd_reg;
>  
>  	spinlock_t lock;
> @@ -870,9 +870,7 @@ static int __devinit snd_opti9xx_probe(struct snd_card *card)
>  			       &codec);
>  	if (error < 0)
>  		return error;
> -#ifdef OPTi93X
>  	chip->codec = codec;
> -#endif
>  	error = snd_wss_pcm(codec, 0, &pcm);
>  	if (error < 0)
>  		return error;
> @@ -1053,11 +1051,55 @@ static int __devexit snd_opti9xx_isa_remove(struct device *devptr,
>  	return 0;
>  }
>  
> +#ifdef CONFIG_PM
> +static int snd_opti9xx_suspend(struct snd_card *card)
> +{
> +	struct snd_opti9xx *chip = card->private_data;
> +
> +	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
> +	chip->codec->suspend(chip->codec);
> +	return 0;
> +}
> +
> +static int snd_opti9xx_resume(struct snd_card *card)
> +{
> +	struct snd_opti9xx *chip = card->private_data;
> +	int error, xdma2;
> +#if defined(CS4231) || defined(OPTi93X)
> +	xdma2 = dma2;
> +#else
> +	xdma2 = -1;
> +#endif
> +
> +	error = snd_opti9xx_configure(chip, port, irq, dma1, xdma2,
> +				      mpu_port, mpu_irq);
> +	if (error)
> +		return error;
> +	chip->codec->resume(chip->codec);
> +	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
> +	return 0;
> +}
> +
> +static int snd_opti9xx_isa_suspend(struct device *dev, unsigned int n,
> +				   pm_message_t state)
> +{
> +	return snd_opti9xx_suspend(dev_get_drvdata(dev));
> +}
> +
> +static int snd_opti9xx_isa_resume(struct device *dev, unsigned int n)
> +{
> +	return snd_opti9xx_resume(dev_get_drvdata(dev));
> +}
> +#endif
> +
>  static struct isa_driver snd_opti9xx_driver = {
>  	.match		= snd_opti9xx_isa_match,
>  	.probe		= snd_opti9xx_isa_probe,
>  	.remove		= __devexit_p(snd_opti9xx_isa_remove),
> -	/* FIXME: suspend/resume */
> +#ifdef CONFIG_PM
> +	.suspend	= snd_opti9xx_isa_suspend,
> +	.resume		= snd_opti9xx_isa_resume,
> +#endif
>  	.driver		= {
>  		.name	= DEV_NAME
>  	},
> @@ -1123,12 +1165,29 @@ static void __devexit snd_opti9xx_pnp_remove(struct pnp_card_link * pcard)
>  	snd_opti9xx_pnp_is_probed = 0;
>  }
>  
> +#ifdef CONFIG_PM
> +static int snd_opti9xx_pnp_suspend(struct pnp_card_link *pcard,
> +				   pm_message_t state)
> +{
> +	return snd_opti9xx_suspend(pnp_get_card_drvdata(pcard));
> +}
> +
> +static int snd_opti9xx_pnp_resume(struct pnp_card_link *pcard)
> +{
> +	return snd_opti9xx_resume(pnp_get_card_drvdata(pcard));
> +}
> +#endif
> +
>  static struct pnp_card_driver opti9xx_pnpc_driver = {
>  	.flags		= PNP_DRIVER_RES_DISABLE,
>  	.name		= "opti9xx",
>  	.id_table	= snd_opti9xx_pnpids,
>  	.probe		= snd_opti9xx_pnp_probe,
>  	.remove		= __devexit_p(snd_opti9xx_pnp_remove),
> +#ifdef CONFIG_PM
> +	.suspend	= snd_opti9xx_pnp_suspend,
> +	.resume		= snd_opti9xx_pnp_resume,
> +#endif
>  };
>  #endif
>  
> 
> -- 
> Ondrej Zary
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