From: sashiko-bot@kernel.org
To: "Vincent Jardin" <vjardin@free.fr>
Cc: linux-pci@vger.kernel.org, Frank.Li@kernel.org, imx@lists.linux.dev
Subject: Re: [PATCH] PCI: layerscape: async probe by default
Date: Mon, 28 Sep 2026 13:55:04 +0000 [thread overview]
Message-ID: <20260928135504.E18DA1F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260928-for-upstream-pci-layerscape-async-probe-v1-1-76412d887baa@free.fr>
> From: Vincent Jardin <vjardin@free.fr>
>
> dw_pcie_wait_for_link() polls for up to
> PCIE_LINK_WAIT_MAX_RETRIES x PCIE_LINK_WAIT_SLEEP_MS (10 x 90 ms)
> per controller.
>
> The controllers are probed one after the other, so, it leads to slow
> boot time.
>
> On an LX2160A board with 4 enabled controllers and no link on any
> of them, ls_pcie_driver_init took almost 4s.
>
> Probing the 4 in parallel allows to have it down to 1s.
>
> The controllers are independent, other DWC based drivers are already
> using async probing such as qcom, imx6, s32g, rcar-gen4 or stm32.
>
> Signed-off-by: Vincent Jardin <vjardin@free.fr>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260928-for-upstream-pci-layerscape-async-probe-v1-1-76412d887baa@free.fr?part=1
next prev parent reply other threads:[~2026-09-28 13:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-28 13:48 [PATCH] PCI: layerscape: async probe by default Vincent Jardin via B4 Relay
2026-09-28 13:48 ` Vincent Jardin
2026-09-28 13:55 ` sashiko-bot [this message]
2026-09-28 16:14 ` Frank Li
2026-10-07 17:38 ` Vincent Jardin
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