linux-kernel - Re: [PATCH v2] irqchip: uniphier-aidet: add UniPhier AIDET irqchip driver

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Date:   Tue, 22 Aug 2017 19:40:12 -0500
From:   Rob Herring <robh@...nel.org>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        linux-kernel@...r.kernel.org,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2] irqchip: uniphier-aidet: add UniPhier AIDET irqchip
 driver

On Mon, Aug 21, 2017 at 07:01:03PM +0900, Masahiro Yamada wrote:
> UniPhier SoCs contain AIDET (ARM Interrupt Detector).  This is intended
> to provide additional features that are not covered by GIC.  The main
> purpose is to provide logic inverter to support low level and falling
> edge trigger type for interrupt lines from on-board devices.
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> ---
> 
> Changes in v2:
>   - Use readl/write_relaxed instead of readl/writel
>   - Move val = 0 for code symmetry
>   - .alloc() hook only supports nr_irqs==1 case
>   - Move struct irq_chip to static data because this driver expects
>     only one device instance in the system
>   - Match the interrupt number to SPI of GIC to make DT binding clearer
>     (register offset starts from 0x4)
> 
>  .../socionext,uniphier-aidet.txt                   |  32 +++

Acked-by: Rob Herring <robh@...nel.org>

>  MAINTAINERS                                        |   1 +
>  drivers/irqchip/Kconfig                            |   8 +
>  drivers/irqchip/Makefile                           |   1 +
>  drivers/irqchip/irq-uniphier-aidet.c               | 246 +++++++++++++++++++++
>  5 files changed, 288 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/socionext,uniphier-aidet.txt
>  create mode 100644 drivers/irqchip/irq-uniphier-aidet.c