linux-kernel - Re: [PATCH 0/9] ARM: dove: DT PCIe support

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Date:	Mon, 12 Aug 2013 14:54:54 -0600
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Russell King <linux@....linux.org.uk>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>, Olof Johansson <olof@...om.net>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-arm <linux-arm-kernel@...ts.infradead.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: Re: [PATCH 0/9] ARM: dove: DT PCIe support

On Mon, Aug 12, 2013 at 12:46 PM, Sebastian Hesselbarth
<sebastian.hesselbarth@...il.com> wrote:
> This patch set adds support for the PCIe controllers found on Marvell
> Dove SoCs. It depends on mvebu-pci patches sent by Thomas Petazzoni.
> Also, it adds support for the Globalscale D3Plug - a Dove based board
> comprising a USB3.0 dual port controller and a mini-PCIe port. The
> mini-PCIe port has not been tested, but USB controller and attached
> USB stick has been detected.
>
> The patch set can be separated into two main parts and should be
> taken by the respective maintainers. First five patches belong to
> PCI driver for MVEBU SoCs, while last four patches are Marvell Dove
> related. It is based on (unstable) mvebu/for-next branch with MSI
> patches applied and will be rebased on request.
>
> Devicetree and Doc MLs are not Cc'ed for the driver-only patches,
> PCI ML and maintainer are not Cc'ed for the Dove-only patches.
>
> Patches 1 and 2 fix some minor issues with pci-mvebu by moving
> clk_prepare_enable before accessing any controller registers and
> counting sucessfully registered ports only.
>
> Patch 3 converts pci-mvebu from subsys_initcall registration to
> normal platform driver registration to allow it to fail with
> EPROBE_DEFER later.
>
> Patch 4 adds DT parsing for reset (PERST#) GPIO pins and delay to
> wait for PCIe devices after reset de-assertion.
>
> Patch 5 finally adds a compatible to pci-mvebu for Dove SoCs.

I'm happy to merge patches 1-5 for v3.12 if you like, given acks from Thomas.

> Patch 6 updates dove_defconfig with some useful options for the
> Si5351 i2c clock generator found on SolidRun CuBox, PCIe driver,
> and USB3.0 xHCI driver.
>
> Patches 7 and 8 add PCIe controller nodes to Dove SoC DT and
> add support for the Globalscale D3Plug where this patches have
> been tested on.
>
> Patch 8 finally removes legacy PCIe driver init and clock
> gate workarounds from DT based Dove init.
>
> Sebastian Hesselbarth (9):
>   PCI: mvebu: move clock enable before register access
>   PCI: mvebu: increment nports only for registered ports
>   PCI: mvebu: remove subsys_initcall
>   PCI: mvebu: add support for reset on GPIO
>   PCI: mvebu: add support for Marvell Dove SoCs
>   ARM: dove: update dove_defconfig with SI5351, PCI, and xHCI
>   ARM: dove: add PCIe controllers to SoC DT
>   ARM: dove: add initial DT file for Globalscale D3Plug
>   ARM: dove: remove legacy pcie and clock init
>
>  .../devicetree/bindings/pci/mvebu-pci.txt          |    3 +
>  arch/arm/boot/dts/Makefile                         |    1 +
>  arch/arm/boot/dts/dove-d3plug.dts                  |  103 ++++++++++++++++++
>  arch/arm/boot/dts/dove.dtsi                        |   54 ++++++++++
>  arch/arm/configs/dove_defconfig                    |    4 +
>  arch/arm/mach-dove/board-dt.c                      |   29 -----
>  drivers/pci/host/Kconfig                           |    2 +-
>  drivers/pci/host/pci-mvebu.c                       |  113 +++++++++++++-------
>  8 files changed, 241 insertions(+), 68 deletions(-)
>  create mode 100644 arch/arm/boot/dts/dove-d3plug.dts
> ---
> Cc: Russell King <linux@....linux.org.uk>
> Cc: Jason Cooper <jason@...edaemon.net>
> Cc: Andrew Lunn <andrew@...n.ch>
> Cc: Bjorn Helgaas <bhelgaas@...gle.com>
> Cc: Olof Johansson <olof@...om.net>
> Cc: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
> Cc: devicetree@...r.kernel.org
> Cc: linux-doc@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-pci@...r.kernel.org
> --
> 1.7.10.4
>
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