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Rosen reported strange dtc warnings that had their origin in an upstream patch to 5.8-rc1. Upon further digging this revealed an ongoing thread [0] discussing the topic: > [...]I don't think we need a bunch of warning fix patches to add > these everywhere. Also, the need for #address-cells pretty much makes > no sense on any modern system. It is a relic from days when the bus > (address) topology and interrupt topology were related. and later on: > So really, we only need to be checking for #address-cells in nodes > with interrupt-map. This patch backports just the patch which removed the warning message (this is from the upstream dtc project [1] - but not the kernel). the patch does not add the checking of the #address-cells in nodes with interrupt-map. [0] <https://lore.kernel.org/linux-devicetree/91e3405245c89f134676449cf3822285798d2ed2.1612189652.git.michal.simek@xilinx.com/> [1] <https://git.kernel.org/pub/scm/utils/dtc/dtc.git/commit/?id=d8d1a9a77863a8c7031ae82a1d461aa78eb72a7b> Link: <https://github.com/openwrt/openwrt/pull/4685> Reported-by: Rosen Penev <rosenp@gmail.com> Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
29 lines
1.0 KiB
Diff
29 lines
1.0 KiB
Diff
From d8d1a9a77863a8c7031ae82a1d461aa78eb72a7b Mon Sep 17 00:00:00 2001
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From: Rob Herring <robh@kernel.org>
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Date: Mon, 11 Oct 2021 14:12:43 -0500
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Subject: [PATCH] checks: Drop interrupt provider '#address-cells' check
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'#address-cells' is only needed when parsing 'interrupt-map' properties, so
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remove it from the common interrupt-provider test.
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Cc: Andre Przywara <andre.przywara@arm.com>
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Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
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Signed-off-by: Rob Herring <robh@kernel.org>
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Message-Id: <20211011191245.1009682-3-robh@kernel.org>
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Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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---
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--- a/scripts/dtc/checks.c
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+++ b/scripts/dtc/checks.c
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@@ -1569,11 +1569,6 @@ static void check_interrupt_provider(str
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if (!prop)
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FAIL(c, dti, node,
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"Missing #interrupt-cells in interrupt provider");
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-
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- prop = get_property(node, "#address-cells");
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- if (!prop)
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- FAIL(c, dti, node,
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- "Missing #address-cells in interrupt provider");
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}
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WARNING(interrupt_provider, check_interrupt_provider, NULL);
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