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SubjectRe: [PATCH v4] arm64: dts: imx8mq: Init rates and parents configs for clocks
Date
On 2019-10-23 9:29 AM, Viorel Suman wrote:
> On Mi, 2019-08-21 at 20:39 +0000, Leonard Crestez wrote:
>> The audio PLLs should run below 650 mHz so please use 393216000 and
>> 361267200 instead of 786432000 and 722534400. For the 8mm equivalent see
>> commit 053a4ffe2988 ("clk: imx: imx8mm: fix audio pll setting").
>
> Hi Leonard,
>
> Audio PLL IP on 8mm and 8mn is different than the Audio PLL IP on 8mq,
> so the requirement to run below 650 MHZ may not apply to 8mq.

This "max 650mHz" limit is from internal ADD and is also mentioned for
imx8mq.

Peng: you made the change in our internal tree, can you confirm this
requirement also applies to 8mq?

Viorel: Is there any impact from 393216000 vs 786432000 on PLL on audio?
As far as I can know this rate goes through various dividers anyway.

--
Regards,
Leonard

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