The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 751bec089c4eed486578994abd2c5395f08d0302 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2025062028-paddling-tribunal-1ecc@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 751bec089c4eed486578994abd2c5395f08d0302 Mon Sep 17 00:00:00 2001 From: Janne Grunau j@jannau.net Date: Tue, 1 Apr 2025 10:17:01 +0100 Subject: [PATCH] PCI: apple: Set only available ports up

Iterating over disabled ports results in of_irq_parse_raw() parsing the wrong "interrupt-map" entries, as it takes the status of the node into account.

This became apparent after disabling unused PCIe ports in the Apple Silicon device trees instead of deleting them.

Switching from for_each_child_of_node_scoped() to for_each_available_child_of_node_scoped() solves this issue.

Fixes: 1e33888fbe44 ("PCI: apple: Add initial hardware bring-up") Fixes: a0189fdfb73d ("arm64: dts: apple: t8103: Disable unused PCIe ports") Signed-off-by: Janne Grunau j@jannau.net Signed-off-by: Alyssa Rosenzweig alyssa@rosenzweig.io Signed-off-by: Marc Zyngier maz@kernel.org Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Tested-by: Janne Grunau j@jannau.net Reviewed-by: Rob Herring (Arm) robh@kernel.org Reviewed-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Acked-by: Alyssa Rosenzweig alyssa@rosenzweig.io Cc: stable@vger.kernel.org Link: https://lore.kernel.org/asahi/20230214-apple_dts_pcie_disable_unused-v1-0-5e... Link: https://lore.kernel.org/asahi/1ea2107a-bb86-8c22-0bbc-82c453ab08ce@linaro.or... Link: https://patch.msgid.link/20250401091713.2765724-2-maz@kernel.org

diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c index 18e11b9a7f46..996cef8a2e17 100644 --- a/drivers/pci/controller/pcie-apple.c +++ b/drivers/pci/controller/pcie-apple.c @@ -754,7 +754,7 @@ static int apple_pcie_init(struct pci_config_window *cfg) if (ret) return ret;

- for_each_child_of_node_scoped(dev->of_node, of_port) { + for_each_available_child_of_node_scoped(dev->of_node, of_port) { ret = apple_pcie_setup_port(pcie, of_port); if (ret) { dev_err(pcie->dev, "Port %pOF setup fail: %d\n", of_port, ret);