[v5,0/6] mips: Add DT bindings for MIPS CDMM and MIPS GIC

Message

Serge Semin July 14, 2020, 12:57 p.m. UTC

Daniel, Rafael, Thomas (Gleixner), could you specifically take a look at
the last patch in this series? If you are ok with that, please explicitly
ack. We need at least one of your blessing to merge the series in, since
the code and DT-related patches here have been mostly reviewed. We've
missed the last merge window. It would be pity to miss the next one...

Regarding this patchset origin. Recently I've submitted a series of
patchset's which provided multiple fixes for the MIPS arch subsystem and
the MIPS GIC and DW APB Timer drivers, which were required for the
Baikal-T1 SoC correctly working with those drivers. Mostly those patchsets
have been already merged into the corresponding subsystems, but several
patches have been left floating since noone really responded for review
except Rob provided his approval regarding DT bindings. Thus in this
patchset I've collected all the leftovers so not to loose them in a pale
of the maintainers email logs.

The patchset includes the following updates: MIPS CPC and GIC DT bindings
legacy text-based file are converted to the DT schema (Rob has already
reviewed them), add MIPS CDMM DT node support to place the CDMM block at
the platform-specific MMIO range, make sure MIPS CDMM is available for
MIPS_R5 CPUs.

Seeing the series concerns the MIPS-related drivers it's better to merge
it in through the MIPS repository:
https://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git/

This patchset is rebased and tested on the mainline Linux kernel 5.7-rc4:
base-commit: 0e698dfa2822 ("Linux 5.7-rc4")
tag: v5.7-rc4

Suggestion.
Since Paul isn't looking after the MIPS arch code anymore, Ralf hasn't
been seen maintaining MIPS for a long time, Thomas is only responsible
for the next part of it:
	F:      Documentation/devicetree/bindings/mips/
	F:      Documentation/mips/
	F:      arch/mips/
	F:      drivers/platform/mips/
the MIPS-specific drivers like:
	F:	drivers/bus/mips_cdmm.c
	F:	drivers/irqchip/irq-mips-cpu.c
	F:	drivers/irqchip/irq-mips-gic.c
	F:	drivers/clocksource/mips-gic-timer.c
	F:	drivers/cpuidle/cpuidle-cps.c
seem to be left for the subsystems maintainers to support. So if you don't
mind or unless there is a better alternative, I can help with looking
after them to ease the maintainers review burden and since I'll be working
on our MIPS-based SoC drivers integrating into the mainline kernel repo
anyway. Thomas agreed to join in maintaining that drivers.

Previous patchsets:
mips: Prepare MIPS-arch code for Baikal-T1 SoC support:
Link: https://lore.kernel.org/linux-mips/[e-mail]
Link: https://lore.kernel.org/linux-mips/[e-mail]
Link: https://lore.kernel.org/linux-mips/[e-mail]

clocksource: Fix MIPS GIC and DW APB Timer for Baikal-T1 SoC support:
Link: https://lore.kernel.org/linux-rtc/[e-mail]
Link: https://lore.kernel.org/linux-rtc/[e-mail]
Link: https://lore.kernel.org/linux-rtc/[e-mail]

Changelog prev:
- Add yaml-based bindings file for MIPS CDMM dt-node.
- Convert mti,mips-cpc to DT schema.
- Use a shorter summary describing the bindings modification patches.
- Rearrange the SoBs with adding Alexey' co-development tag.
- Lowercase the hex numbers in the dt-bindings.

Changelog v2:
- Resend.

Link: https://lore.kernel.org/linux-mips/[e-mail]
Changelog v3:
- Keep F: MAINTAINERS section alphabetically ordered.
- Add Thomas as the co-maintainer of the MIPS CPU and GIC IRQchip, MIPS
  GIC timer and MIPS CPS CPUidle drivers.

Link: https://lore.kernel.org/linux-mips/[e-mail]
Changelog v4:
- Resend.

Link: https://lore.kernel.org/linux-mips/[e-mail]
Changelog v5:
- Consider address and size cells being <1> by default for the DT examples.

Signed-off-by: Serge Semin <[e-mail]>
Cc: Alexey Malahov <[e-mail]>
Cc: Rob Herring <[e-mail]>
Cc: Arnd Bergmann <[e-mail]>
Cc: Jason Cooper <[e-mail]>
Cc: Marc Zyngier <[e-mail]>
Cc: James Hogan <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Cc: [e-mail]

Serge Semin (6):
  dt-bindings: power: Convert mti,mips-cpc to DT schema
  dt-bindings: interrupt-controller: Convert mti,gic to DT schema
  dt-bindings: bus: Add MIPS CDMM controller
  mips: cdmm: Add mti,mips-cdmm dtb node support
  bus: cdmm: Add MIPS R5 arch support
  MAINTAINERS: Add maintainers for MIPS core drivers

 .../bindings/bus/mti,mips-cdmm.yaml           |  35 +++++
 .../interrupt-controller/mips-gic.txt         |  67 --------
 .../interrupt-controller/mti,gic.yaml         | 148 ++++++++++++++++++
 .../bindings/power/mti,mips-cpc.txt           |   8 -
 .../bindings/power/mti,mips-cpc.yaml          |  35 +++++
 MAINTAINERS                                   |  11 ++
 drivers/bus/Kconfig                           |   2 +-
 drivers/bus/mips_cdmm.c                       |  15 ++
 8 files changed, 245 insertions(+), 76 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/bus/mti,mips-cdmm.yaml
 delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/mips-gic.txt
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mti,gic.yaml
 delete mode 100644 Documentation/devicetree/bindings/power/mti,mips-cpc.txt
 create mode 100644 Documentation/devicetree/bindings/power/mti,mips-cpc.yaml

Comments

Thomas Bogendoerfer July 21, 2020, 8:30 a.m. UTC | #1

On Tue, Jul 14, 2020 at 03:57:46PM +0300, Serge Semin wrote:
> Daniel, Rafael, Thomas (Gleixner), could you specifically take a look at
> the last patch in this series? If you are ok with that, please explicitly
> ack. We need at least one of your blessing to merge the series in, since
> the code and DT-related patches here have been mostly reviewed. We've
> missed the last merge window. It would be pity to miss the next one...
> 
> Regarding this patchset origin. Recently I've submitted a series of
> patchset's which provided multiple fixes for the MIPS arch subsystem and
> the MIPS GIC and DW APB Timer drivers, which were required for the
> Baikal-T1 SoC correctly working with those drivers. Mostly those patchsets
> have been already merged into the corresponding subsystems, but several
> patches have been left floating since noone really responded for review
> except Rob provided his approval regarding DT bindings. Thus in this
> patchset I've collected all the leftovers so not to loose them in a pale
> of the maintainers email logs.
> 
> The patchset includes the following updates: MIPS CPC and GIC DT bindings
> legacy text-based file are converted to the DT schema (Rob has already
> reviewed them), add MIPS CDMM DT node support to place the CDMM block at
> the platform-specific MMIO range, make sure MIPS CDMM is available for
> MIPS_R5 CPUs.
> 
> Seeing the series concerns the MIPS-related drivers it's better to merge
> it in through the MIPS repository:
> https://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git/
> 
> This patchset is rebased and tested on the mainline Linux kernel 5.7-rc4:
> base-commit: 0e698dfa2822 ("Linux 5.7-rc4")
> tag: v5.7-rc4
> 
> Suggestion.
> Since Paul isn't looking after the MIPS arch code anymore, Ralf hasn't
> been seen maintaining MIPS for a long time, Thomas is only responsible
> for the next part of it:
> 	F:      Documentation/devicetree/bindings/mips/
> 	F:      Documentation/mips/
> 	F:      arch/mips/
> 	F:      drivers/platform/mips/
> the MIPS-specific drivers like:
> 	F:	drivers/bus/mips_cdmm.c
> 	F:	drivers/irqchip/irq-mips-cpu.c
> 	F:	drivers/irqchip/irq-mips-gic.c
> 	F:	drivers/clocksource/mips-gic-timer.c
> 	F:	drivers/cpuidle/cpuidle-cps.c
> seem to be left for the subsystems maintainers to support. So if you don't
> mind or unless there is a better alternative, I can help with looking
> after them to ease the maintainers review burden and since I'll be working
> on our MIPS-based SoC drivers integrating into the mainline kernel repo
> anyway. Thomas agreed to join in maintaining that drivers.
> 
> Previous patchsets:
> mips: Prepare MIPS-arch code for Baikal-T1 SoC support:
> Link: https://lore.kernel.org/linux-mips/[e-mail]
> Link: https://lore.kernel.org/linux-mips/[e-mail]
> Link: https://lore.kernel.org/linux-mips/[e-mail]
> 
> clocksource: Fix MIPS GIC and DW APB Timer for Baikal-T1 SoC support:
> Link: https://lore.kernel.org/linux-rtc/[e-mail]
> Link: https://lore.kernel.org/linux-rtc/[e-mail]
> Link: https://lore.kernel.org/linux-rtc/[e-mail]
> 
> Changelog prev:
> - Add yaml-based bindings file for MIPS CDMM dt-node.
> - Convert mti,mips-cpc to DT schema.
> - Use a shorter summary describing the bindings modification patches.
> - Rearrange the SoBs with adding Alexey' co-development tag.
> - Lowercase the hex numbers in the dt-bindings.
> 
> Changelog v2:
> - Resend.
> 
> Link: https://lore.kernel.org/linux-mips/[e-mail]
> Changelog v3:
> - Keep F: MAINTAINERS section alphabetically ordered.
> - Add Thomas as the co-maintainer of the MIPS CPU and GIC IRQchip, MIPS
>   GIC timer and MIPS CPS CPUidle drivers.
> 
> Link: https://lore.kernel.org/linux-mips/[e-mail]
> Changelog v4:
> - Resend.
> 
> Link: https://lore.kernel.org/linux-mips/[e-mail]
> Changelog v5:
> - Consider address and size cells being <1> by default for the DT examples.
> 
> Signed-off-by: Serge Semin <[e-mail]>
> Cc: Alexey Malahov <[e-mail]>
> Cc: Rob Herring <[e-mail]>
> Cc: Arnd Bergmann <[e-mail]>
> Cc: Jason Cooper <[e-mail]>
> Cc: Marc Zyngier <[e-mail]>
> Cc: James Hogan <[e-mail]>
> Cc: [e-mail]
> Cc: [e-mail]
> Cc: [e-mail]
> 
> Serge Semin (6):
>   dt-bindings: power: Convert mti,mips-cpc to DT schema
>   dt-bindings: interrupt-controller: Convert mti,gic to DT schema
>   dt-bindings: bus: Add MIPS CDMM controller
>   mips: cdmm: Add mti,mips-cdmm dtb node support
>   bus: cdmm: Add MIPS R5 arch support
>   MAINTAINERS: Add maintainers for MIPS core drivers
> 
>  .../bindings/bus/mti,mips-cdmm.yaml           |  35 +++++
>  .../interrupt-controller/mips-gic.txt         |  67 --------
>  .../interrupt-controller/mti,gic.yaml         | 148 ++++++++++++++++++
>  .../bindings/power/mti,mips-cpc.txt           |   8 -
>  .../bindings/power/mti,mips-cpc.yaml          |  35 +++++
>  MAINTAINERS                                   |  11 ++
>  drivers/bus/Kconfig                           |   2 +-
>  drivers/bus/mips_cdmm.c                       |  15 ++
>  8 files changed, 245 insertions(+), 76 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/bus/mti,mips-cdmm.yaml
>  delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/mips-gic.txt
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mti,gic.yaml
>  delete mode 100644 Documentation/devicetree/bindings/power/mti,mips-cpc.txt
>  create mode 100644 Documentation/devicetree/bindings/power/mti,mips-cpc.yaml

series applied to mips-next.

Thomas.