[RFC 1/2] ARM:Tegra: Device Tree Support: Initialize the audio card from the device tree.

[grant.likely@secretlab.ca (Grant Likely)]

On Wed, Jun 1, 2011 at 1:07 AM, Barry Song <21cnbao@gmail.com> wrote:
> 2011/5/28 John Bonesio <bones@secretlab.ca>:
>> This patch makes it so the top level audio card is initialized from the device
>> tree. This is just the first step getting the audio complex of devices
>> iniialized from device tree nodes.
>>
>> Signed-off-by: John Bonesio<bones@secretlab.ca>
>> ---
>>
>> ?arch/arm/boot/dts/tegra-harmony.dts | ? ?4 +++
>> ?arch/arm/mach-tegra/board-dt.c ? ? ?| ? ?3 ++
>> ?sound/soc/tegra/harmony.c ? ? ? ? ? | ? 45 ++++++++++++++++++++++++++++++++---
>> ?3 files changed, 48 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/tegra-harmony.dts b/arch/arm/boot/dts/tegra-harmony.dts
>> index 05521a5..217a7f0 100644
>> --- a/arch/arm/boot/dts/tegra-harmony.dts
>> +++ b/arch/arm/boot/dts/tegra-harmony.dts
>> @@ -53,6 +53,10 @@
>> ? ? ? ? ? ? ? ?clock-frequency = <400000>;
>> ? ? ? ?};
>>
>> + ? ? ? harmony_audio: audio_card {
>> + ? ? ? ? ? ? ? compatible = "nvidia,harmony-audio";
>> + ? ? ? };
>> +
>> ? ? ? ?serial at 70006300 {
>> ? ? ? ? ? ? ? ?status = "ok";
>> ? ? ? ? ? ? ? ?clock-frequency = < 216000000 >;
>> diff --git a/arch/arm/mach-tegra/board-dt.c b/arch/arm/mach-tegra/board-dt.c
>> index c498e84..a569ad9 100644
>> --- a/arch/arm/mach-tegra/board-dt.c
>> +++ b/arch/arm/mach-tegra/board-dt.c
>> @@ -56,6 +56,9 @@ static struct platform_device *tegra250_devices[] __initdata = {
>> ? ? ? ?&tegra_i2c_device2,
>> ? ? ? ?&tegra_i2c_device3,
>> ? ? ? ?&tegra_i2c_device4,
>> + ? ? ? &tegra_i2s_device1,
>> + ? ? ? &tegra_das_device,
>> + ? ? ? &tegra_pcm_device,
>
> i am thinking whether platform_device should be created by
> of_platform_device_create after scanning device tree, but not by
> hard-code? looks like the two patches are only trying to let device
> tree deliver gpio to drivers?

Can you please restate your question?  I don't think I understand what
you are trying to ask.

g.