[GIT PULL] ARM: aspeed: soc changes for 5.10

[GIT PULL] ARM: aspeed: soc changes for 5.10

[Joel Stanley]

Hello Soc maintainers,

Here are some ASPEED changes for the 5.10 merge window.

The following changes since commit e55f541e51b5136fc0ced0bdf2b33ee3cca3bc96:

  soc: aspeed: xdma: Add reset ioctl (2020-09-25 15:32:57 +0930)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed.git
tags/aspeed-5.10-soc

for you to fetch changes up to e55f541e51b5136fc0ced0bdf2b33ee3cca3bc96:

  soc: aspeed: xdma: Add reset ioctl (2020-09-25 15:32:57 +0930)

----------------------------------------------------------------
ASPEED soc driver updates for 5.10

New drivers:

 - XDMA driver for the BMC to host PCIe DMA device
 - SoC info driver to expose revision information

New features:

 - AST2600 support for the LPC control driver. This includes
   setting the LPC2AHB bridge up in a backwards compatible manner.

Cleanups:

 - LPC control
 - Kconfig
 - Bindings updates for AST2600 strings

----------------------------------------------------------------
Andrew Jeffery (1):
      soc: aspeed-lpc-ctrl: Fail probe of lpc-ctrl if reserved memory
is not aligned

Brad Bishop (2):
      dt-bindings: aspeed-lpc: Add AST2600 compatible strings
      soc: aspeed: lpc: Add AST2600 compatible strings

Eddie James (4):
      dt-bindings: soc: Add Aspeed XDMA Engine
      soc: aspeed: Add XDMA Engine Driver
      soc: aspeed: xdma: Add user interface
      soc: aspeed: xdma: Add reset ioctl

Joel Stanley (7):
      soc: aspeed: Improve kconfig
      dt-bindings: aspeed: Add silicon id node to SCU
      soc: aspeed: Add soc info driver
      ARM: dts: aspeed: Add silicon id node
      soc: aspeed-lpc-ctrl: LPC to AHB mapping on ast2600
      soc: aspeed-lpc-ctrl: Fix whitespace
      soc: aspeed-lpc-ctrl: Fix driver name

 .../devicetree/bindings/mfd/aspeed-lpc.txt         |    8 +-
 .../devicetree/bindings/mfd/aspeed-scu.txt         |   26 +
 .../devicetree/bindings/soc/aspeed/xdma.yaml       |  103 ++
 MAINTAINERS                                        |    8 +
 arch/arm/boot/dts/aspeed-g4.dtsi                   |    5 +
 arch/arm/boot/dts/aspeed-g5.dtsi                   |    5 +
 arch/arm/boot/dts/aspeed-g6.dtsi                   |    5 +
 drivers/soc/Makefile                               |    2 +-
 drivers/soc/aspeed/Kconfig                         |   53 +-
 drivers/soc/aspeed/Makefile                        |    2 +
 drivers/soc/aspeed/aspeed-lpc-ctrl.c               |   37 +-
 drivers/soc/aspeed/aspeed-lpc-snoop.c              |    2 +
 drivers/soc/aspeed/aspeed-socinfo.c                |  133 +++
 drivers/soc/aspeed/aspeed-xdma.c                   | 1205 ++++++++++++++++++++
 include/uapi/linux/aspeed-xdma.h                   |   42 +
 15 files changed, 1615 insertions(+), 21 deletions(-)

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Re: [GIT PULL] ARM: aspeed: soc changes for 5.10

[Olof Johansson]

Hi Joel,

On Fri, Sep 25, 2020 at 06:31:28AM +0000, Joel Stanley wrote:
> Hello Soc maintainers,
> 
> Here are some ASPEED changes for the 5.10 merge window.
> 
> The following changes since commit e55f541e51b5136fc0ced0bdf2b33ee3cca3bc96:
> 
>   soc: aspeed: xdma: Add reset ioctl (2020-09-25 15:32:57 +0930)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed.git
> tags/aspeed-5.10-soc
> 
> for you to fetch changes up to e55f541e51b5136fc0ced0bdf2b33ee3cca3bc96:
> 
>   soc: aspeed: xdma: Add reset ioctl (2020-09-25 15:32:57 +0930)
> 
> ----------------------------------------------------------------
> ASPEED soc driver updates for 5.10
> 
> New drivers:
> 
>  - XDMA driver for the BMC to host PCIe DMA device

I don't think this driver belongs in drivers/soc, it's not "soc glue
logic", and it has a userspace interface. Some of the commits even
references it as a "misc driver". Mind resubmitting it for drivers/misc
instead?


Thanks,


-Olof

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Re: [GIT PULL] ARM: aspeed: soc changes for 5.10

[Joel Stanley]

On Sat, 3 Oct 2020 at 20:31, Olof Johansson <olof@lixom.net> wrote:
>
> Hi Joel,
>
> On Fri, Sep 25, 2020 at 06:31:28AM +0000, Joel Stanley wrote:
> > Hello Soc maintainers,
> >
> > Here are some ASPEED changes for the 5.10 merge window.
> >
> > The following changes since commit e55f541e51b5136fc0ced0bdf2b33ee3cca3bc96:
> >
> >   soc: aspeed: xdma: Add reset ioctl (2020-09-25 15:32:57 +0930)
> >
> > are available in the Git repository at:
> >
> >   git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed.git
> > tags/aspeed-5.10-soc
> >
> > for you to fetch changes up to e55f541e51b5136fc0ced0bdf2b33ee3cca3bc96:
> >
> >   soc: aspeed: xdma: Add reset ioctl (2020-09-25 15:32:57 +0930)
> >
> > ----------------------------------------------------------------
> > ASPEED soc driver updates for 5.10
> >
> > New drivers:
> >
> >  - XDMA driver for the BMC to host PCIe DMA device
>
> I don't think this driver belongs in drivers/soc, it's not "soc glue
> logic", and it has a userspace interface. Some of the commits even
> references it as a "misc driver". Mind resubmitting it for drivers/misc
> instead?

(Argh I missed this mail)

We used to have the various little drivers in drivers/misc, but
somewhere along the line we decided to move them to drivers/soc. I
think that was Arnd asking Patrick Venture?

https://lore.kernel.org/linux-arm-kernel/CAK8P3a3CK4o8KnD6M084ULEmm+6_CtNFqYHjSqE5vp+U9YAmkA@mail.gmail.com/

The existing drivers have userspace interfaces for misc parts of the
aspeed chip, mostly relating to the strange (from a traditional
Linux/host perspective) interfaces it exposes to the host. This XDMA
driver should go alongside those other drivers.

With that context, how would you like to proceed?

Cheers,

Joel

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Re: [GIT PULL] ARM: aspeed: soc changes for 5.10

[Joel Stanley]

On Wed, 7 Oct 2020 at 11:18, Joel Stanley <joel@jms.id.au> wrote:
>
> On Sat, 3 Oct 2020 at 20:31, Olof Johansson <olof@lixom.net> wrote:
> >
> > Hi Joel,
> >
> > On Fri, Sep 25, 2020 at 06:31:28AM +0000, Joel Stanley wrote:
> > > Hello Soc maintainers,
> > >
> > > Here are some ASPEED changes for the 5.10 merge window.
> > >
> > > The following changes since commit e55f541e51b5136fc0ced0bdf2b33ee3cca3bc96:
> > >
> > >   soc: aspeed: xdma: Add reset ioctl (2020-09-25 15:32:57 +0930)
> > >
> > > are available in the Git repository at:
> > >
> > >   git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed.git
> > > tags/aspeed-5.10-soc
> > >
> > > for you to fetch changes up to e55f541e51b5136fc0ced0bdf2b33ee3cca3bc96:
> > >
> > >   soc: aspeed: xdma: Add reset ioctl (2020-09-25 15:32:57 +0930)
> > >
> > > ----------------------------------------------------------------
> > > ASPEED soc driver updates for 5.10
> > >
> > > New drivers:
> > >
> > >  - XDMA driver for the BMC to host PCIe DMA device
> >
> > I don't think this driver belongs in drivers/soc, it's not "soc glue
> > logic", and it has a userspace interface. Some of the commits even
> > references it as a "misc driver". Mind resubmitting it for drivers/misc
> > instead?
>
> (Argh I missed this mail)
>
> We used to have the various little drivers in drivers/misc, but
> somewhere along the line we decided to move them to drivers/soc. I
> think that was Arnd asking Patrick Venture?
>
> https://lore.kernel.org/linux-arm-kernel/CAK8P3a3CK4o8KnD6M084ULEmm+6_CtNFqYHjSqE5vp+U9YAmkA@mail.gmail.com/
>
> The existing drivers have userspace interfaces for misc parts of the
> aspeed chip, mostly relating to the strange (from a traditional
> Linux/host perspective) interfaces it exposes to the host. This XDMA
> driver should go alongside those other drivers.
>
> With that context, how would you like to proceed?

Arnd, Olof, what would you like to do here?

Cheers,

Joel

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