linux-kernel - [PATCH 0/3] PCI: meson: Fix the parsing of DBI region

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Message-Id: <20251031-pci-meson-fix-v1-0-ed29ee5b54f9@oss.qualcomm.com>
Date: Fri, 31 Oct 2025 23:12:58 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
To: Bjorn Helgaas <bhelgaas@...gle.com>, 
 Lorenzo Pieralisi <lpieralisi@...nel.org>, 
 Krzysztof Wilczyński <kwilczynski@...nel.org>, 
 Manivannan Sadhasivam <mani@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Hanjie Lin <hanjie.lin@...ogic.com>, Yue Wang <yue.wang@...ogic.com>, 
 Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>, 
 Andrew Murray <amurray@...goodpenguin.co.uk>, 
 Jingoo Han <jingoohan1@...il.com>, 
 Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
Cc: linux-pci@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-amlogic@...ts.infradead.org, 
 Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>, 
 stable+noautosel@...nel.org, stable@...r.kernel.org, 
 Linnaea Lavia <linnaea-von-lavia@...e.com>
Subject: [PATCH 0/3] PCI: meson: Fix the parsing of DBI region

Hi,

This compile tested only series aims to fix the DBI parsing issue repored in
[1]. The issue stems from the fact that the DT and binding describing 'dbi'
region as 'elbi' from the start.

Now, both binding and DTs are fixed and the driver is reworked to work with both
old and new DTs.

Note: The driver patch is OK to be backported till 6.2 where the common resource
parsing code was introduced. But the DTS patch should not be backported. And I'm
not sure about the backporting of the binding.

Please test this series on the Meson board with old and new DTs.

- Mani

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
---
Manivannan Sadhasivam (3):
      dt-bindings: PCI: amlogic: Fix the register name of the DBI region
      arm64: dts: amlogic: Fix the register name of the 'DBI' region
      PCI: meson: Fix parsing the DBI register region

 .../devicetree/bindings/pci/amlogic,axg-pcie.yaml      |  6 +++---
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi             |  4 ++--
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi      |  2 +-
 drivers/pci/controller/dwc/pci-meson.c                 | 18 +++++++++++++++---
 drivers/pci/controller/dwc/pcie-designware.c           | 12 +++++++-----
 5 files changed, 28 insertions(+), 14 deletions(-)
---
base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
change-id: 20251031-pci-meson-fix-c8b651bc6662

Best regards,
-- 
Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>