[PATCH v5 0/3] Add Actions Semi Owl family sirq support

[Manivannan Sadhasivam]

On 23 August 2020 4:35:13 AM IST, Cristian Ciocaltea <cristian.ciocaltea at gmail.com> wrote:
>Hi Mani,
>
>On Sat, Aug 22, 2020 at 06:47:12PM +0530, Manivannan Sadhasivam wrote:
>> Hi Cristi,
>> 
>> On Wed, Aug 19, 2020 at 07:37:55PM +0300, Cristian Ciocaltea wrote:
>> > This patch series adds support for the external interrupt
>controller
>> > (SIRQ) found in the Actions Semi Owl family of SoC's (S500, S700
>and
>> > S900). The controller handles up to 3 external interrupt lines
>through
>> > dedicated SIRQ pins.
>> > 
>> > This is a rework of the patch series submitted some time ago by 
>> > Parthiban Nallathambi: 
>> > https://lore.kernel.org/lkml/20181126100356.2840578-1-pn@denx.de/
>> > 
>> 
>> You need to preserve the authorship while reposting the patches. If
>you'd
>> like to take the authorship intentionally then please explain the
>reason in
>> cover letter.
>> 
>> Thanks,
>> Mani
>
>Thanks for pointing this out, I was not aware of the procedure - this
>is
>actually my very first repost. Could you please indicate how should I
>proceed to fix this? I had absolutely no intention to take the
>authorship..
>

Below command would change the author of last commit:

git commit --amend --author="Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>"

>Sorry for the mistake,

No issues! 

Thanks, 
Mani

>Cristi
>
>> > Please note I have dropped, for the moment, the S700 related
>patches 
>> > since I do not own a compatible hardware for testing. I'm using
>instead
>> > an S500 SoC based board for which I have already provided the
>initial
>> > support:
>> >
>https://lore.kernel.org/lkml/cover.1592123160.git.cristian.ciocaltea@gmail.com/
>> > 
>> > The SIRQ controller support is a prerequisite of the soon to be
>submitted
>> > MFD driver for the Actions Semi ATC260x PMICs.
>> > 
>> > Thanks and regards,
>> > Cristi
>> > 
>> > Changes in v5:
>> > - Integrated Marc's review (more details in the driver patch
>changelog)
>> > - Rebased patch series on v5.9-rc1
>> > 
>> > Changes in v4:
>> > - Simplified the DTS structure:
>> >   * dropped 'actions,sirq-shared-reg' node, now the differentiation
>> >     between SoC variants is handled now via the compatible property
>> >   * dropped 'actions,sirq-reg-offset', now controller base address
>in
>> >     DTS points to SIRQ0 register, so no additional information is
>> >     required for S500 and S700, while for S900 SoC the offsets of
>SIRQ1
>> >     and SIRQ2 regs are provided by the driver
>> >   * 'actions,ext-irq-range' was replaced with
>'actions,ext-interrupts',
>> >     an array of the GIC interrupts triggered by the controller
>> > - Fixed wrong INTC_EXTCTL_TYPE_MASK definition
>> > - Removed redundant irq_fwspec checks in owl_sirq_domain_alloc()
>> > - Improved error handling in owl_sirq_of_init()
>> > - Added yaml binding document
>> > - Dropped S700 related DTS patches for lack of testing hardware:
>> >   * arm64: dts: actions: Add sirq node for Actions Semi S700
>> >   * arm64: dts: actions: s700-cubieboard7: Enable SIRQ
>> > - Updated MAINTAINERS
>> > - Rebased patchset on kernel v5.8
>> > - Cosmetic changes
>> >  * Ordered include statements alphabetically
>> >  * Added comment to owl_sirq_set_type() describing conversion of
>falling
>> >    edge or active low signals
>> >  * Replaced IRQF_TRIGGER_* with corresponding IRQ_TYPE_* variants
>> >  * Ensured data types and function naming are consistent regarding
>the
>> >    'owl_sirq' prefix
>> > 
>> > Changes in v3 (Parthiban Nallathambi):
>> > - Set default operating frequency to 24MHz
>> > - Falling edge and Low Level interrupts translated to rising edge
>and high level
>> > - Introduced common function with lock handling for register read
>and write
>> > - Used direct GIC interrupt number for interrupt local hwirq and
>finding offset
>> > using DT entry (range) when registers are shared 
>> > - Changed irq_ack to irq_eoi
>> > - Added translation method for irq_domain_ops
>> > - Clearing interrupt pending based on bitmask for edge triggered
>> > - Added pinctrl definition for sirq for cubieboard7. This depends
>on,
>> > https://lore.kernel.org/patchwork/patch/1012859/
>> > 
>> > Changes in v2 (Parthiban Nallathambi):
>> > - Added SIRQ as hierarchical chip
>> >         GIC <----> SIRQ <----> External interrupt controller/Child
>devices
>> > - Device binding updates with vendor prefix
>> > - Register sharing handled globally and common init sequence/data
>for all
>> > actions SoC family
>> > 
>> > Cristian Ciocaltea (3):
>> >   dt-bindings: interrupt-controller: Add Actions SIRQ controller
>binding
>> >   irqchip: Add Actions Semi Owl SIRQ controller
>> >   MAINTAINERS: Add entries for Actions Semi Owl SIRQ controller
>> > 
>> >  .../actions,owl-sirq.yaml                     |  68 ++++
>> >  MAINTAINERS                                   |   2 +
>> >  drivers/irqchip/Makefile                      |   1 +
>> >  drivers/irqchip/irq-owl-sirq.c                | 347
>++++++++++++++++++
>> >  4 files changed, 418 insertions(+)
>> >  create mode 100644
>Documentation/devicetree/bindings/interrupt-controller/actions,owl-sirq.yaml
>> >  create mode 100644 drivers/irqchip/irq-owl-sirq.c
>> > 
>> > -- 
>> > 2.28.0
>> > 

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