linux-kernel - Re: [PATCH 8/9] irqchip/ls-scfg-msi: add LS1043a v1.1 MSI support

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Message-ID: <20170103174601.jbmqo7iataemzyxc@rob-hp-laptop>
Date:   Tue, 3 Jan 2017 11:46:01 -0600
From:   Rob Herring <robh@...nel.org>
To:     Minghuan Lian <Minghuan.Lian@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Marc Zyngier <marc.zyngier@....com>,
        Jason Cooper <jason@...edaemon.net>,
        Roy Zang <roy.zang@....com>, Mingkai Hu <mingkai.hu@....com>,
        Stuart Yoder <stuart.yoder@....com>,
        Yang-Leo Li <leoyang.li@....com>,
        Scott Wood <scott.wood@....com>
Subject: Re: [PATCH 8/9] irqchip/ls-scfg-msi: add LS1043a v1.1 MSI support

On Tue, Dec 27, 2016 at 05:13:04PM +0800, Minghuan Lian wrote:
> A MSI controller of LS1043a v1.0 only includes one MSIR and
> is assigned one GIC interrupt. In order to support affinity,
> LS1043a v1.1 MSI is assigned 4 MSIRs and 4 GIC interrupts.
> But the MSIR has the different offset and only supports 8 MSIs.
> The bits between variable bit_start and bit_end in structure
> ls_scfg_msir are used to show 8 MSI interrupts. msir_irqs and
> msir_base are added to describe the difference of MSI between
> LS1043a v1.1 and other SoCs.
> 
> Signed-off-by: Minghuan Lian <Minghuan.Lian@....com>
> ---
>  .../interrupt-controller/fsl,ls-scfg-msi.txt       |  1 +
>  drivers/irqchip/irq-ls-scfg-msi.c                  | 45 +++++++++++++++++++---
>  2 files changed, 40 insertions(+), 6 deletions(-)

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