[Sound-open-firmware] [PATCH v3 2/2] platform: apl platform should support 8 channels

[zhigangw]

On 2018年06月20日 18:25, Liam Girdwood wrote:
> On Wed, 2018-06-20 at 11:04 +0800, Wu Zhigang wrote:
>> apollolake platform should support 8-channel.
>>
>> Signed-off-by: Wu Zhigang <zhigang.wu at linux.intel.com>
>>
>> ---
>> test with:
>> apl-gpmrb with tdf8532 codec
>>
>> linux topic/sof-dev: 0d51a5ed28c5
>> sof master:          48d2a1c551d7
>> soft master:         2cc3ad2a9287
>>
>> pass the regression test:
>> Minnowboard Turbo
>> UP^2
>> CNL-RVP
>> ---
>>   src/platform/apollolake/include/platform/platform.h | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/src/platform/apollolake/include/platform/platform.h
>> b/src/platform/apollolake/include/platform/platform.h
>> index 1cce0c7..04badb6 100644
>> --- a/src/platform/apollolake/include/platform/platform.h
>> +++ b/src/platform/apollolake/include/platform/platform.h
>> @@ -66,7 +66,7 @@ struct sof;
>>   #define PLATFORM_HOST_DMA_MASK	0x00000000
>>   
>>   /* Platform stream capabilities */
>> -#define PLATFORM_MAX_CHANNELS	4
>> +#define PLATFORM_MAX_CHANNELS	8
>>   #define PLATFORM_MAX_STREAMS	16
>>   
> Applied patch 1/2.
>
> max channels should be 16 for BYT, HSW, APL and CNL given that the SSP port can
> playback 16 channels.
>
> Liam
Are you sure of this?
I checked the SSP's register for CNL: SSTSA and SSRSA. It only supports 
8-channel.
Or maybe my manual is not latest.
Thanks
~zhigang
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