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

From: Bryan Wu
Date: Wed Aug 27 2008 - 23:46:40 EST


On Wed, Aug 27, 2008 at 7:01 PM, Mark Brown <broonie@xxxxxxxxxxxxx> 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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