[alsa-devel] [PATCH v5 2/2] clk: x86: Add Atom PMC platform clocks

Tirdea, Irina irina.tirdea at intel.com
Fri Dec 9 19:09:03 CET 2016


On 2016-12-09 02:25, Stephen Boyd wrote:
> On 12/07, Irina Tirdea wrote:
>> The BayTrail and CherryTrail platforms provide platform clocks
>> through their Power Management Controller (PMC).
>> 
>> The SoC supports up to 6 clocks (PMC_PLT_CLK[5:0]) with a
>> frequency of either 19.2 MHz (PLL) or 25 MHz (XTAL) for BayTrail
>> an a frequency of 19.2 MHz (XTAL) for CherryTrail. These clocks
>> are available for general system use, where appropriate, and each
>> have Control & Frequency register fields associated with them.
>> 
>> For example, the usage for platform clocks suggested in the datasheet
>> is the following:
>>   PLT_CLK[2:0] - Camera
>>   PLT_CLK[3] - Audio Codec
>>   PLT_CLK[4] -
>>   PLT_CLK[5] - COMMs
>> Signed-off-by: Irina Tirdea <irina.tirdea at intel.com> Signed-off-by:
>> Pierre-Louis Bossart <pierre- louis.bossart at linux.intel.com> ---
>>  drivers/clk/x86/Makefile                      |   1 +
>>  drivers/clk/x86/clk-byt-plt.c                 | 380
> ++++++++++++++++++++++++++
> 
> Is it possible to split the clk part from the platform part? I'd
> like to merge just the clk part if possible into the clk tree.
>

It would be great to have the clk part merged. I'll put the code in a
separate patch.

Thanks,
Irina



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