linux-kernel - Re: [PATCH v9 00/13] dmaengine: edma: add freescale edma v3 support

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Date:   Mon, 3 Jul 2023 10:45:27 -0400
From:   Frank Li <Frank.li@....com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     vkoul@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, dmaengine@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        peng.fan@....com, joy.zou@....com, shenwei.wang@....com,
        imx@...ts.linux.dev
Subject: Re: [PATCH v9 00/13] dmaengine: edma: add freescale edma v3 support

On Sun, Jul 02, 2023 at 10:22:22PM +0200, Krzysztof Kozlowski wrote:
> On 28/06/2023 16:45, Frank Li wrote:
> > On Tue, Jun 20, 2023 at 04:12:08PM -0400, Frank Li wrote:
> >> This patch series introduces support for the eDMA version 3 from
> >> Freescale. The eDMA v3 brings alterations in the register layout,
> >> particularly, the separation of channel control registers into
> >> different channels. The Transfer Control Descriptor (TCD) layout,
> >> however, remains identical with only the offset being changed.
> >>
> >> The first 11 patches aim at tidying up the existing Freescale
> >> eDMA code and laying the groundwork for the integration of eDMA v3
> >> support.
> >>
> >> Patch 1-11:
> >> These patches primarily focus on cleaning up and refactoring the existing
> >> fsl_edma driver code. This is to accommodate the upcoming changes and new
> >> features introduced with the eDMA v3.
> >>
> >> Patch 12:
> >> This patch introduces support for eDMA v3. In addition, this patch has
> >> been designed with an eye towards future upgradability, specifically for
> >> transitioning to eDMA v5. The latter involves a significant upgrade
> >> where the TCD address would need to support 64 bits.
> >>
> >> Patch 13:
> >> This patch focuses on the device tree bindings and their modifications
> >> to properly handle and integrate the changes brought about by eDMA v3
> > 
> > @vkoul:
> >   Do you have chance to check these patches? Any chance to come into 6.5
> >   All audio parts of i.MX8x and i.MX9 was dependent on these patches.
> 
> Why do you ping during the merge window?
> 
> v6.5? And what about having it in next for two weeks? One thing is to
> ping for something forgotten, different thing is to try squeeze patches
> skipping our process.

I saw dmaengine tree have not update over 5 weeks.
https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git/
And vkoul have not sent out pull request yet. So I just want to check
if possible. 

Frank

> 
> Best regards,
> Krzysztof
>