linux-kernel - RE: [PATCH] mmc: core: Wait for Vdd to settle on card power off

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20250307211648.1289714-1-erick.shepherd@ni.com>
Date: Fri, 7 Mar 2025 15:16:48 -0600
From: Erick Shepherd <erick.shepherd@...com>
To: <adrian.hunter@...el.com>
CC: <brad.mouring@...com>, <erick.shepherd@...com>,
        <gratian.crisan@...rson.com>, <kyle.roeschley@...com>,
        <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        <ulf.hansson@...aro.org>
Subject: RE: [PATCH] mmc: core: Wait for Vdd to settle on card power off

> It probably should be dealt with in the ->set_power() callback.
> Is it one of the PCI devices in sdhci-pci-core.c?

Sure, I can move the delay to sdhci_set_power(). It looks like that
gets called right before the if-statement in the change I proposed
so the behavior should be the same, unless host->ops->set_power is set.

I believe we saw this failure on devices using the Intel Atom E3930
and E3940, which are Apollo Lake. It looks like there is an entry in
sdhci-pci-core.c. Does that change what we should do?

Regards,
Erick