Re: [PATCH 1/1] net: fec: ptp: avoid register access when ipg clock is disabled
From: Heiko Thiery
Date: Thu Feb 25 2021 - 09:07:30 EST
Hi Richard,
Am Do., 25. Feb. 2021 um 14:49 Uhr schrieb Heiko Thiery
<heiko.thiery@xxxxxxxxx>:
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Hi Richard,
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Am Di., 23. Feb. 2021 um 17:11 Uhr schrieb Richard Cochran
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<richardcochran@xxxxxxxxx>:
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> On Tue, Feb 23, 2021 at 04:04:16PM +0100, Heiko Thiery wrote:
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> > It is not only the PHC clock that stops. Rather, it is the entire
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> > ethernet building block in the SOC that is disabled, including the
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> > PHC.
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> Sure, but why does the driver do that?
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That is a good question. I tried to understand the clock
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infrastructure of the imx8 but it looks quite complicated. I cannot
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find the point where all the stuff is disabled.
But the explanation why it is currently disabled that way can be found
in the commit 91c0d987a9788dcc5fe26baafd73bf9242b68900.
--
Heiko