linux-kernel - Re: [alsa-devel] [PATCH 3/4] ASOC: WM8731 codec: add SPI support as well as I2C

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Date:	Thu, 28 Aug 2008 11:46:24 +0800
From:	"Bryan Wu" <cooloney@...nel.org>
To:	"Bryan Wu" <cooloney@...nel.org>, perex@...ex.cz, lrg@...nel.org,
	"Cliff Cai" <cliff.cai@...log.com>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: Re: [alsa-devel] [PATCH 3/4] ASOC: WM8731 codec: add SPI support as well as I2C

On Wed, Aug 27, 2008 at 7:01 PM, Mark Brown <broonie@...ena.org.uk> wrote:
> On Wed, Aug 27, 2008 at 05:39:27PM +0800, Bryan Wu wrote:
>
> This looks good, thanks but...
>
>> -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
>> +#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) && !defined (CONFIG_SND_SOC_WM8731_SPI)
>>       if (setup->i2c_address) {
>>               normal_i2c[0] = setup->i2c_address;
>>               codec->hw_write = (hw_write_t)i2c_master_send;
>> @@ -688,8 +745,14 @@ static int wm8731_probe(struct platform_device *pdev)
>>               if (ret != 0)
>>                       printk(KERN_ERR "can't add i2c driver");
>>       }
>> +#elif defined (CONFIG_SPI_MASTER) && defined (CONFIG_SND_SOC_WM8731_SPI)
>> +     codec->hw_write = (hw_write_t)wm8731_spi_write;
>> +     ret = spi_register_driver(&wm8731_spi_driver);
>> +     if (ret != 0)
>> +             printk(KERN_ERR "can't add spi driver");
>
> ...as for the SSM2602 it'd be good if it were possible to build a kernel
> which supports both I2C and SPI.  If you like I could do this for you -
> there's likely to be merge issues due to the update to the new I2C API
> anyway?
>

Oh, do you mean SSM2602 or WM8731? I also noticed the i2c API updates
patch from Jean and I'd like to use the new one

Thanks
-Bryan
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