linux-kernel - RE: [EXT] Re: [v5 1/3] dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A platform

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Date:   Wed, 18 Dec 2019 08:08:35 +0000
From:   Peng Ma <peng.ma@....com>
To:     Vinod Koul <vkoul@...nel.org>
CC:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>,
        Robin Gong <yibin.gong@....com>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [EXT] Re: [v5 1/3] dmaengine: fsl-edma: Add eDMA support for
 QorIQ LS1028A platform



>-----Original Message-----
>From: Vinod Koul <vkoul@...nel.org>
>Sent: 2019年12月18日 14:27
>To: Peng Ma <peng.ma@....com>
>Cc: robh+dt@...nel.org; mark.rutland@....com; shawnguo@...nel.org; Leo
>Li <leoyang.li@....com>; dan.j.williams@...el.com; Robin Gong
><yibin.gong@....com>; dmaengine@...r.kernel.org;
>devicetree@...r.kernel.org; linux-kernel@...r.kernel.org;
>linux-arm-kernel@...ts.infradead.org
>Subject: [EXT] Re: [v5 1/3] dmaengine: fsl-edma: Add eDMA support for QorIQ
>LS1028A platform
>
>Caution: EXT Email
>
>On 12-12-19, 03:38, Peng Ma wrote:
>> Our platforms(such as LS1021A, LS1012A, LS1043A, LS1046A, LS1028A)
>> with below registers(CHCFG0 - CHCFG15) of eDMA as follows:
>> *-----------------------------------------------------------*
>> |     Offset   |      OTHERS                  |
>LS1028A                 |
>> |--------------|--------------------|-----------------------|
>> |     0x0      |        CHCFG0      |           CHCFG3      |
>> |--------------|--------------------|-----------------------|
>> |     0x1      |        CHCFG1      |           CHCFG2      |
>> |--------------|--------------------|-----------------------|
>> |     0x2      |        CHCFG2      |           CHCFG1      |
>> |--------------|--------------------|-----------------------|
>> |     0x3      |        CHCFG3      |           CHCFG0      |
>> |--------------|--------------------|-----------------------|
>> |     ...      |        ......      |           ......      |
>> |--------------|--------------------|-----------------------|
>> |     0xC      |        CHCFG12     |           CHCFG15     |
>> |--------------|--------------------|-----------------------|
>> |     0xD      |        CHCFG13     |           CHCFG14     |
>> |--------------|--------------------|-----------------------|
>> |     0xE      |        CHCFG14     |           CHCFG13     |
>> |--------------|--------------------|-----------------------|
>> |     0xF      |        CHCFG15     |           CHCFG12     |
>> *-----------------------------------------------------------*
>>
>> This patch is to improve edma driver to fit LS1028A platform.
>
Hi Vinod

>Applied this and patch 3, thanks
>
[Peng Ma] Many thanks.

>Btw pls send bindings as patch1 and driver changes as patch2.
[Peng Ma] I don't understand this sentence, Please give me more information.
As I know patch1 is driver changes, patch2 is dts changes, patch3 is binding changes.
You accepted patch1 and patch3, I am puzzled for patch2 and your comments.

Best Regards,
Peng
>--
>~Vinod