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Message-ID: <ae898bf0-705f-4e36-9664-37c401f5fee7@ti.com>
Date: Wed, 20 Aug 2025 19:22:17 +0530
From: s-vadapalli <s-vadapalli@...com>
To: Michael Walle <mwalle@...nel.org>
CC: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
Tero
Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof
Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
<linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <s-vadapalli@...com>
Subject: Re: [PATCH] arm64: dts: ti: k3-j722s-main: add legacy PCIe interrupts
On Tue, Aug 19, 2025 at 01:13:17PM +0200, Michael Walle wrote:
Hello Michael,
> The kernel will try to map the legacy interrupt pins, but the
> interrupt mapping is missing from the device tree and thus that
> fails with:
>
> pcieport 0000:00:00.0: of_irq_parse_pci: failed with rc=-22
>
> Add the node for the legacy PCIe interrupts to fix that. This is just
> compile-time tested.
INTx is not supported by the driver as explained at:
https://lore.kernel.org/r/be3e3c5f-0d48-41b0-87f4-2210f13b9460@ti.com/
The patch to fix the error displayed in the logs was posted at:
https://lore.kernel.org/r/20240726135903.1255825-1-s-vadapalli@ti.com/
but wasn't accepted as-is. A different approach will be required to fix
of_irq_parse_pci() instead as pointed out at:
https://lore.kernel.org/r/20240729080006.GA8698@thinkpad/
[Trimmed]
Regards,
Siddharth.
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