From: Niklas Cassel <cassel@kernel.org>
To: "Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Heiko Stuebner" <heiko@sntech.de>,
"Niklas Cassel" <cassel@kernel.org>,
"Krishna chaitanya chundru" <quic_krichai@quicinc.com>
Cc: "Wilfred Mallawa" <wilfred.mallawa@wdc.com>,
"Damien Le Moal" <dlemoal@kernel.org>,
"Hans Zhang" <18255117159@163.com>,
"Laszlo Fiat" <laszlo.fiat@proton.me>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org,
linux-arm-msm@vger.kernel.org
Subject: [PATCH 0/4] PCI: dwc: Link Up IRQ fixes
Date: Mon, 5 May 2025 11:26:04 +0200 [thread overview]
Message-ID: <20250505092603.286623-6-cassel@kernel.org> (raw)
Hello there,
Commit 8d3bf19f1b58 ("PCI: dwc: Don't wait for link up if driver can detect
Link Up event") added support for DWC to not wait for link up before
enumerating the bus. However, we cannot simply enumerate the bus after
receiving a Link Up IRQ, we still need to wait PCIE_T_RRS_READY_MS time
to allow a device to become ready after deasserting PERST. To avoid
bringing back an conditional delay during probe, perform the wait in the
threaded IRQ handler instead.
Please review.
Kind regards,
Niklas
Niklas Cassel (4):
PCI: dw-rockchip: Do not enumerate bus before endpoint devices are
ready
PCI: qcom: Do not enumerate bus before endpoint devices are ready
PCI: dw-rockchip: Replace PERST sleep time with proper macro
PCI: qcom: Replace PERST sleep time with proper macro
drivers/pci/controller/dwc/pcie-dw-rockchip.c | 3 ++-
drivers/pci/controller/dwc/pcie-qcom.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
--
2.49.0
next reply other threads:[~2025-05-05 9:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-05 9:26 Niklas Cassel [this message]
2025-05-05 9:26 ` [PATCH 1/4] PCI: dw-rockchip: Do not enumerate bus before endpoint devices are ready Niklas Cassel
2025-05-05 14:09 ` Niklas Cassel
2025-05-05 9:26 ` [PATCH 3/4] PCI: dw-rockchip: Replace PERST sleep time with proper macro Niklas Cassel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250505092603.286623-6-cassel@kernel.org \
--to=cassel@kernel.org \
--cc=18255117159@163.com \
--cc=bhelgaas@google.com \
--cc=dlemoal@kernel.org \
--cc=heiko@sntech.de \
--cc=kw@linux.com \
--cc=kwilczynski@kernel.org \
--cc=laszlo.fiat@proton.me \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=linux-rockchip@lists.infradead.org \
--cc=lpieralisi@kernel.org \
--cc=manivannan.sadhasivam@linaro.org \
--cc=quic_krichai@quicinc.com \
--cc=robh@kernel.org \
--cc=wilfred.mallawa@wdc.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox