Re: sdhci-omap: additional PM issue since 5.16

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On Thu, Mar 6, 2025 at 10:28 PM Tony Lindgren <tony@xxxxxxxxxxx> wrote:
>
> Best to revert the patch first until the issue has been fixed.
>
> Based on the symptoms, it sounds like there might be a missing flush of
> a posted write in the PM runtime suspend/resume path. This could cause
> something in the sequence happen in the wrong order for some of the
> related surrounding resources like power, clocks or interrupts.
>

Kington's hardware anaylizer said after CMD5/sleep in about 10us,
instead of CMD5/wkup being called, it just resets the eMMC..  So
someone deep within the sdhc/mmc layer might understand that. ;)

Regards,

-- 
Robert Nelson
https://rcn-ee.com/





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