linux-kernel - Re: [PATCH v5 0/2] Add new UniPhier PCIe host driver

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Date:   Wed, 19 Dec 2018 15:48:49 +0000
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>
Subject: Re: [PATCH v5 0/2] Add new UniPhier PCIe host driver

On Fri, Dec 07, 2018 at 09:53:10AM +0900, Kunihiko Hayashi wrote:
> This series adds PCIe host controller driver for Socionext UniPhier SoCs.
> This controller is based on the DesignWare PCIe core. This driver
> supports LD20 and PXs3 SoCs.
> 
> v4: https://www.spinics.net/lists/linux-pci/msg78278.html
> 
> About legacy IRQ, it might be necessary to share common view from
> keystone driver that have been cleaned up[1].
> 
> [1] https://lore.kernel.org/patchwork/patch/989541/
> 
> Changes since v4:
> - fix an issue of using the wrong value to mask IRQ mask register
> 
> Changes since v3:
> - dt-bindings: fix INTX numbering of legacy interrupt map
> - change interrupts to level ones
> - remove .xlate function
> - merge uniphier_pcie_ltssm_disable() into uniphier_pcie_ltssm_enable()
> - remove an error message on uniphier_pcie_establish_link()
> - change the order between irq_domain_add_liniear() and
>   irq_set_chained_handler_and_data()
> - replace dummy_irq_chip with uniphier_pcie_irq_chip and its functions
> - add dependency on CONFIG_HAS_IOMEM
> - MAINTAINERS: add pcie-uniphier entry
> 
> Changes since v2:
> - dt-bindings: remove a comment that the node name isn't important
> - dt-bindings: remove "intx" interrupt
> - dt-bindings: define 'legacy-interrupt-controller' node and its properties
> - return an error value when link up fails
> - remove devm_request_irq() and a handler for MSI IRQ
> - use chained interrupt instead of devm_request_irq() for legacy IRQ
> - add unipher_pcie_config_legacy_irq() to get legacy IRQ from
>   'legacy-interrupt controller' node
> - replace 4 statments to handle INTX with for_each_set_bit()
> - remove initialization of pp->root_bus_nr
> - remove indivisual interrupt enable bit definitions
> - rename 'irq_domain' member to 'legacy_irq_domain' in private structure
> - use pci_irqd_intx_xlate() for irq_domain_ops.xlate function
> 
> Changes since v1:
> - follow capitalization conventions in the descriptions
> - use C style comments except for the SPDX line
> 
> Kunihiko Hayashi (2):
>   dt-bindings: PCI: Add UniPhier PCIe host controller description
>   PCI: uniphier: Add UniPhier PCIe host controller support
> 
>  .../devicetree/bindings/pci/uniphier-pcie.txt      |  81 ++++
>  MAINTAINERS                                        |   7 +
>  drivers/pci/controller/dwc/Kconfig                 |  10 +
>  drivers/pci/controller/dwc/Makefile                |   1 +
>  drivers/pci/controller/dwc/pcie-uniphier.c         | 471 +++++++++++++++++++++
>  5 files changed, 570 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pci/uniphier-pcie.txt
>  create mode 100644 drivers/pci/controller/dwc/pcie-uniphier.c

Applied to pci/uniphier, aiming for v4.21, thanks.

Lorenzo