[alsa-devel] [PATCHv4 1/7] OMAP4: PMIC: Add support for twl6030 codec

[Liam Girdwood]

On Tue, 2010-02-23 at 18:10 -0600, Olaya, Margarita wrote:
> From: Misael Lopez Cruz <x0052729 at ti.com>
> 
> In order to have TWL6030 CODEC driver as a platform driver, codec data
> should be passed through twl_platform_data structure.
> 
> For twl6030 audio codec, the following data may be passed:
>     - audpwron_gpio: gpio line used to power-up/down the codec. A low-to-high
>       transition powers codec up. Setting audpwron_gpio to a negative value
>       means that codec will use manual power sequence instead of automatic
>       sequence
>     - naudint_irq: irq line for audio interrupt. twl6030 drives NAUDINT line
>       to low when an interrupt (codec ready, plug insertion/removal, etc) is
>       detected
> 
> However, codec driver can operate if any or none of them are passed.
> 
> Signed-off-by: Misael Lopez Cruz <x0052729 at ti.com>
> Signed-off-by: Margarita Olaya Cabrera <magi.olaya at ti.com>
> Signed-off-by: Jorge Eduardo Candelaria <jorge.candelaria at ti.com>

It would be good to get Samuel's Ack on this as it touches MFD.

Samuel are you OK with this ?

> ---
>  drivers/mfd/twl-core.c  |   18 +++++++++++++++---
>  include/linux/i2c/twl.h |    4 ++++
>  2 files changed, 19 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
> index 514e1e4..7e3b0d7 100644
> --- a/drivers/mfd/twl-core.c
> +++ b/drivers/mfd/twl-core.c
> @@ -118,7 +118,8 @@
>  #define twl_has_watchdog()        false
>  #endif
>  
> -#if defined(CONFIG_TWL4030_CODEC) || defined(CONFIG_TWL4030_CODEC_MODULE)
> +#if defined(CONFIG_TWL4030_CODEC) || defined(CONFIG_TWL4030_CODEC_MODULE) ||\
> +	defined(CONFIG_SND_SOC_TWL6030) || defined(CONFIG_SND_SOC_TWL6030_MODULE)
>  #define twl_has_codec()	true
>  #else
>  #define twl_has_codec()	false
> @@ -735,8 +736,19 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
>  			return PTR_ERR(child);
>  	}
>  
> -	if (twl_has_codec() && pdata->codec) {
> -		child = add_child(1, "twl4030_codec",
> +	if (twl_has_codec() && pdata->codec && twl_class_is_4030()) {
> +		sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
> +		child = add_child(sub_chip_id, "twl4030_codec",
> +				pdata->codec, sizeof(*pdata->codec),
> +				false, 0, 0);
> +		if (IS_ERR(child))
> +			return PTR_ERR(child);
> +	}
> +
> +	/* Phoenix*/
> +	if (twl_has_codec() && pdata->codec && twl_class_is_6030()) {
> +		sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
> +		child = add_child(sub_chip_id, "twl6030_codec",
>  				pdata->codec, sizeof(*pdata->codec),
>  				false, 0, 0);
>  		if (IS_ERR(child))
> diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
> index 9cf6cd7..d943c8b 100644
> --- a/include/linux/i2c/twl.h
> +++ b/include/linux/i2c/twl.h
> @@ -556,6 +556,10 @@ struct twl4030_codec_data {
>  	unsigned int	audio_mclk;
>  	struct twl4030_codec_audio_data		*audio;
>  	struct twl4030_codec_vibra_data		*vibra;
> +
> +	/* twl6030 */
> +	int audpwron_gpio;      /* audio power-on gpio */
> +	int naudint_irq;        /* audio interrupt */
>  };
>  
>  struct twl4030_platform_data {

Liam

-- 
Freelance Developer, SlimLogic Ltd
ASoC and Voltage Regulator Maintainer.
http://www.slimlogic.co.uk