linux-kernel - Re: [PATCH 0/3] dmaengine: Stear users towards dma_request_slave

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Message-ID: <38f686ae-66fa-0e3a-ec2e-a09fc4054ac4@physik.fu-berlin.de>
Date:   Mon, 3 Feb 2020 21:21:16 +0100
From:   John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Peter Ujfalusi <peter.ujfalusi@...com>
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        dmaengine <dmaengine@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Linux-sh list <linux-sh@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH 0/3] dmaengine: Stear users towards
 dma_request_slave_chan()

On 2/3/20 2:32 PM, Geert Uytterhoeven wrote:
> Both rspi and sh-msiof have users on legacy SH (i.e. without DT):

FWIW, there is a patch set by Yoshinori Sato to add device tree support
for classical SuperH hardware. It was never merged, unfortunately :(.

> Anyone who cares for DMA on SuperH?

What is DMA used for on SuperH? Wouldn't dropping it cut support for
essential hardware features?

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
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