ASoC SSP Driver Question

ASoC SSP Driver Question

[Bensaid, Selma]

Hi,

I'm working on ASoC driver for TI WL1273 (BT/FM) using the Bulverde SSP from IPGEAR peripheral. I have seen that a pxa_ssp driver already exists however I'm not if we have to use it as is it and adapt our SSP PCI driver to Interface with the pxa-ssp, or can we propose an "intel_ssp" ASoC driver?

Thanks,

Selma.

Selma BENSAID
UMG/MIPE/WSIV  Software Team
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mailto:selma.bensaid@intel.com
Intel Corp.
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France




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Re: ASoC SSP Driver Question

[Mark Brown]

On Mon, Jan 10, 2011 at 10:47:33AM +0000, Bensaid, Selma wrote:

Please:
- Always CC maintainers on mails relating to the Linux kernel.
- Configure your mail client to wrap lines within paragraphs to
  something less than 80 columns.

> I'm working on ASoC driver for TI WL1273 (BT/FM) using the Bulverde
> SSP from IPGEAR peripheral. I have seen that a pxa_ssp driver already
> exists however I'm not if we have to use it as is it and adapt our SSP
> PCI driver to Interface with the pxa-ssp, or can we propose an
> "intel_ssp" ASoC driver?

You can do any of those things that make sense.  Please make sure that
you coordinate your work with the other work going on on Intel platforms
- there's some drivers been submitted recently for the MIDs, and there's
more work coming on those.

Re: ASoC SSP Driver Question

[Peter Ujfalusi]

Hi,

On 01/10/11 12:47, ext Bensaid, Selma wrote:
> Hi,
> 
> I'm working on ASoC driver for TI WL1273 (BT/FM) using the Bulverde SSP from IPGEAR peripheral.

Are you using the the existing ASoC codec driver for WL1273? It is in
the tree:
sound/soc/codecs/wl1273.*

I have put Matti Aaltonen, the author of the codec driver to the CC list.

-- 
Péter

Re: ASoC SSP Driver Question

[Bensaid, Selma]

> Are you using the the existing ASoC codec driver for WL1273? It is in
> the tree:
> sound/soc/codecs/wl1273.*
> 
> I have put Matti Aaltonen, the author of the codec driver to the CC list.
Yes, I'm planning to use this codec driver however I'm not sure that it 
supports the FM capture. 
According to the code, the codec handles the WL1273_MODE_BT mode only. 
The ASoC driver I'm working on handles both BT and FM.
Thanks,
Selma.
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Intel Corporation SAS (French simplified joint stock company)
Registered headquarters: "Les Montalets"- 2, rue de Paris, 
92196 Meudon Cedex, France
Registration Number:  302 456 199 R.C.S. NANTERRE
Capital: 4,572,000 Euros

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

Re: ASoC SSP Driver Question

[Peter Ujfalusi]

On 01/10/11 14:46, ext Bensaid, Selma wrote:
> Yes, I'm planning to use this codec driver however I'm not sure that it 
> supports the FM capture. 
> According to the code, the codec handles the WL1273_MODE_BT mode only. 

The BT mode is the default, but the driver supports both FM TX and RX as
well. The change can be done via the "Codec Mode" ALSA control.

The driver in upstream supports the shared I2S lines only (shared
between BT/FM radio). The codec has dedicated FM I2S lines, but in the
HW we have it is not connected, but IMHO it can be easily added as
another DAI on the codec.

-- 
Péter