Re: [PATCH v2] of: address: Work around missing device_type property in pcie nodes
From: Rob Herring <robh@kernel.org>
Date: 2020-08-19 22:30:37
Also in:
linux-devicetree, linux-pci, linux-rockchip, lkml
On Wed, 19 Aug 2020 10:42:55 +0100, Marc Zyngier wrote:
Recent changes to the DT PCI bus parsing made it mandatory for
device tree nodes describing a PCI controller to have the
'device_type = "pci"' property for the node to be matched.
Although this follows the letter of the specification, it
breaks existing device-trees that have been working fine
for years. Rockchip rk3399-based systems are a prime example
of such collateral damage, and have stopped discovering their
PCI bus.
In order to paper over it, let's add a workaround to the code
matching the device type, and accept as PCI any node that is
named "pcie",
A warning will hopefully nudge the user into updating their
DT to a fixed version if they can, but the incentive is
obviously pretty small.
Fixes: 2f96593ecc37 ("of_address: Add bus type match for pci ranges parser")
Suggested-by: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
drivers/of/address.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)Applied, thanks! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel