From: sashiko-bot@kernel.org
To: "Encrow Thorne" <encrow.thorne@linux.spacemit.com>
Cc: linux-pci@vger.kernel.org
Subject: Re: [PATCH] PCI: spacemit: Ignore link partner PERST on K1
Date: Thu, 24 Sep 2026 02:08:59 +0000 [thread overview]
Message-ID: <20260924020859.E61E01F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260924-spacemit-k1-pcie-fix-v1-1-002b5c1ba9fc@linux.spacemit.com>
> The K1 PCIe controller and PHY are affected by the PERST signal from
> the link partner during initialization. With some devices connected,
> this can prevent host initialization from progressing and cause the
> system to hang while probing the PCIe controller.
>
> Set PCIE_IGNORE_PERSTN before accessing the DBI registers. When set,
> this bit makes both the PCIe controller and PHY ignore the PERST
> signal from the link partner.
>
> This allows host initialization to complete without being affected by
> the link partner's PERST state.
>
> Signed-off-by: Encrow Thorne <encrow.thorne@linux.spacemit.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260924-spacemit-k1-pcie-fix-v1-1-002b5c1ba9fc@linux.spacemit.com?part=1
next prev parent reply other threads:[~2026-09-24 2:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-24 2:04 [PATCH] PCI: spacemit: Ignore link partner PERST on K1 Encrow Thorne
2026-09-24 2:08 ` sashiko-bot [this message]
2026-09-24 2:23 ` Troy Mitchell
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