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References: <cover.1648461096.git.zong.li@sifive.com> <YlA1DwdIMoQ1dXZS@matsya>
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From:   Zong Li <zong.li@sifive.com>
Date:   Mon, 11 Apr 2022 10:51:56 +0800
Message-ID: <CANXhq0ramPvr=CL2oPsPAnWiF9X0eYVt8HGAVWPE9mZ5PfhG7A@mail.gmail.com>
Subject: Re: [PATCH v8 0/4] Determine the number of DMA channels by
 'dma-channels' property
To:     Vinod Koul <vkoul@kernel.org>
Cc:     Rob Herring <robh+dt@kernel.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Conor Dooley <conor.dooley@microchip.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Bin Meng <bin.meng@windriver.com>,
        Green Wan <green.wan@sifive.com>,
        dmaengine <dmaengine@vger.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        "linux-kernel@vger.kernel.org List" <linux-kernel@vger.kernel.org>,
        linux-riscv <linux-riscv@lists.infradead.org>
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On Fri, Apr 8, 2022 at 9:13 PM Vinod Koul <vkoul@kernel.org> wrote:
>
> On 28-03-22, 17:52, Zong Li wrote:
> > The PDMA driver currently assumes there are four channels by default, it
> > might cause the error if there is actually less than four channels.
> > Change that by getting number of channel dynamically from device tree.
> > For backwards-compatible, it uses the default value (i.e. 4) when there
> > is no 'dma-channels' information in dts.
>
> Applied patch 1 & 4 to dmaengine-next, thanks

Hi Vinod,
Thanks for your help and review. For patch 2 and 3, does it mean that
we should go through the riscv tree?

>
> --
> ~Vinod