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    SubjectRe: [PATCH 00/15] PCI: brcmstb: enable PCIe for STB chips
    On Tue, May 19, 2020 at 04:33:58PM -0400, Jim Quinlan wrote:
    > This patchset expands the usefulness of the Broadcom Settop Box PCIe
    > controller by building upon the PCIe driver used currently by the
    > Raspbery Pi. Other forms of this patchset were submitted by me years
    > ago and not accepted; the major sticking point was the code required
    > for the DMA remapping needed for the PCIe driver to work [1].
    >
    > There have been many changes to the DMA and OF subsystems since that
    > time, making a cleaner and less intrusive patchset possible. This
    > patchset implements a generalization of "dev->dma_pfn_offset", except
    > that instead of a single scalar offset it provides for multiple
    > offsets via a function which depends upon the "dma-ranges" property of
    > the PCIe host controller. This is required for proper functionality
    > of the BrcmSTB PCIe controller and possibly some other devices.
    >
    > [1] https://lore.kernel.org/linux-arm-kernel/1516058925-46522-5-git-send-email-jim2101024@gmail.com/
    >
    > Jim Quinlan (15):
    > PCI: brcmstb: PCIE_BRCMSTB depends on ARCH_BRCMSTB
    > ahci_brcm: fix use of BCM7216 reset controller
    > dt-bindings: PCI: Add bindings for more Brcmstb chips
    > PCI: brcmstb: Add compatibily of other chips
    > PCI: brcmstb: Add suspend and resume pm_ops
    > PCI: brcmstb: Asserting PERST is different for 7278
    > PCI: brcmstb: Add control of rescal reset
    > of: Include a dev param in of_dma_get_range()
    > device core: Add ability to handle multiple dma offsets
    > dma-direct: Invoke dma offset func if needed
    > arm: dma-mapping: Invoke dma offset func if needed
    > PCI: brcmstb: Set internal memory viewport sizes
    > PCI: brcmstb: Accommodate MSI for older chips
    > PCI: brcmstb: Set bus max burst side by chip type
    > PCI: brcmstb: add compatilbe chips to match list

    If you have occasion to post a v2 for other reasons,

    s/PCIE_BRCMSTB depends on ARCH_BRCMSTB/Allow PCIE_BRCMSTB on ARCH_BRCMSTB also/
    s/ahci_brcm: fix use of BCM7216 reset controller/ata: ahci_brcm: Fix .../
    s/Add compatibily of other chips/Add bcm7278 register info/
    s/Asserting PERST is different for 7278/Add bcm7278 PERST support/
    s/Set bus max burst side/Set bus max burst size/
    s/add compatilbe chips.*/Add bcm7211, bcm7216, bcm7445, bcm7278 to match list/

    Rewrap commit logs to use full 75 character lines (to allow for the 4
    spaces added by git log).

    In commit logs, s/This commit// (use imperative mood instead).

    In "Accommodate MSI for older chips" commit log, s/commont/common/.

    > .../bindings/pci/brcm,stb-pcie.yaml | 40 +-
    > arch/arm/include/asm/dma-mapping.h | 17 +-
    > drivers/ata/ahci_brcm.c | 14 +-
    > drivers/of/address.c | 54 ++-
    > drivers/of/device.c | 2 +-
    > drivers/of/of_private.h | 8 +-
    > drivers/pci/controller/Kconfig | 4 +-
    > drivers/pci/controller/pcie-brcmstb.c | 403 +++++++++++++++---
    > include/linux/device.h | 9 +-
    > include/linux/dma-direct.h | 16 +
    > include/linux/dma-mapping.h | 44 ++
    > kernel/dma/Kconfig | 12 +
    > 12 files changed, 542 insertions(+), 81 deletions(-)
    >
    > --
    > 2.17.1
    >

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