Re: [PATCH v3 00/11] Add PCIe support for bcm2712

["Rob Herring (Arm)" <robh@kernel.org>]

On Mon, 14 Oct 2024 16:06:59 +0300, Stanimir Varbanov wrote:
> Hello,
> 
> Here is v3 the series to add support for PCIe on bcm2712 SoC
> used by RPi5. Previous v2 can be found at [1].
> 
> v2 -> v3 changes include:
>  - Added Reviewed-by/Acked-by tags.
>  - MIP MSI-X driver has been converted to MSI parent.
>  - Added a new patch for PHY PLL adjustment need to succesfully
>    enumerate PCIe endpoints on extension connector (tested with
>    Pineboards AI Bundle + NVME SSD adapter card).
>  - Re-introduced brcm,msi-offset DT private property for MIP
>    interrupt-controller (without it I'm anable to use the interrupts
>    of adapter cards on PCIe enxtension connector).
> 
> For more info check patches.
> 
> [1] https://patchwork.kernel.org/project/linux-pci/cover/20240910151845.17308-1-svarbanov@suse.de/
> 
> Stanimir Varbanov (11):
>   dt-bindings: interrupt-controller: Add bcm2712 MSI-X DT bindings
>   dt-bindings: PCI: brcmstb: Update bindings for PCIe on bcm2712
>   irqchip: mip: Add Broadcom bcm2712 MSI-X interrupt controller
>   PCI: brcmstb: Expand inbound size calculation helper
>   PCI: brcmstb: Enable external MSI-X if available
>   PCI: brcmstb: Avoid turn off of bridge reset
>   PCI: brcmstb: Add bcm2712 support
>   PCI: brcmstb: Reuse config structure
>   PCI: brcmstb: Adjust PHY PLL setup to use a 54MHz input refclk
>   arm64: dts: broadcom: bcm2712: Add PCIe DT nodes
>   arm64: dts: broadcom: bcm2712-rpi-5-b: Enable PCIe DT nodes
> 
>  .../brcm,bcm2712-msix.yaml                    |  60 ++++
>  .../bindings/pci/brcm,stb-pcie.yaml           |   5 +-
>  .../boot/dts/broadcom/bcm2712-rpi-5-b.dts     |   8 +
>  arch/arm64/boot/dts/broadcom/bcm2712.dtsi     | 160 +++++++++
>  drivers/irqchip/Kconfig                       |  16 +
>  drivers/irqchip/Makefile                      |   1 +
>  drivers/irqchip/irq-bcm2712-mip.c             | 308 ++++++++++++++++++
>  drivers/pci/controller/pcie-brcmstb.c         | 197 ++++++++---
>  8 files changed, 707 insertions(+), 48 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2712-msix.yaml
>  create mode 100644 drivers/irqchip/irq-bcm2712-mip.c
> 
> --
> 2.43.0
> 
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


New warnings running 'make CHECK_DTBS=y broadcom/bcm2712-rpi-5-b.dtb' for 20241014130710.413-1-svarbanov@suse.de:

arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@100000: resets: [[12, 42], [13]] is too short
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@100000: reset-names:0: 'rescal' was expected
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@100000: reset-names:1: 'bridge' was expected
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@100000: reset-names: ['bridge', 'rescal'] is too short
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@110000: 'msi-controller' is a required property
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@110000: resets: [[12, 43], [13]] is too short
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@110000: reset-names:0: 'rescal' was expected
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@110000: reset-names:1: 'bridge' was expected
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@110000: reset-names: ['bridge', 'rescal'] is too short
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@120000: 'msi-controller' is a required property
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@120000: resets: [[12, 44], [13]] is too short
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@120000: reset-names:0: 'rescal' was expected
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@120000: reset-names:1: 'bridge' was expected
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pcie@120000: reset-names: ['bridge', 'rescal'] is too short
	from schema $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#