Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1224618

Re: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio amplifier driver

Show all headers | View raw

On 9/8/2015 20:23, Mark Brown wrote:
> On Tue, Sep 08, 2015 at 05:36:13PM +0800, Wu, Songjun wrote:
>> On 9/8/2015 00:25, Mark Brown wrote:
>
>>> Sure, there's no problem at all having that structure in software but it
>>> should be possible to do this without having to represent this structure
>>> in DT.  It should be possible to register the card at the same time as
>>> the rest of the components rather than needing the separate device in
>>> the DT.
>
>> Do you mean using a single entry in the DT for the whole classD system and
>> instantiate ASoC components from it.
>> For now, there are two entry, they could be combined to one entry.
>
> Yes, exactly.
>
I try to use one entry, but there is a problem.
It's about 'driver_data' in struct device.
In function snd_soc_register_card, the parameter 'card' will be set to 
'driver_data' by the code 'dev_set_drvdata(card->dev, card)'.
Then some resources(eg. regmap, clock) also need be recorded by 
'driver_data'. One entry could only has one 'driver_data'. I think the 
best way is to create two entries, like the current dts.
What's your opinion?
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Re: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio  amplifier driver Mark Brown <broonie@kernel.org> - 2015-09-07 18:30 +0200
  Re: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio  amplifier driver "Wu, Songjun" <songjun.wu@atmel.com> - 2015-09-08 11:40 +0200
    Re: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio  amplifier driver Mark Brown <broonie@kernel.org> - 2015-09-08 14:30 +0200
      Re: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio  amplifier driver "Wu, Songjun" <songjun.wu@atmel.com> - 2015-09-09 05:20 +0200
      Re: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio  amplifier driver "Wu, Songjun" <songjun.wu@atmel.com> - 2015-09-15 05:20 +0200
        Re: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio  amplifier driver Mark Brown <broonie@kernel.org> - 2015-09-16 21:50 +0200
          Re: [PATCH 2/2] ASoC: atmel-classd: DT binding for Class D audio  amplifier driver "Wu, Songjun" <songjun.wu@atmel.com> - 2015-09-17 05:10 +0200

csiph-web