linux-kernel - Re: [V2] dmaengine: fsl-edma: support little endian for edma driver

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Message-ID: <20190624120055.GB2962@vkoul-mobl>
Date:   Mon, 24 Jun 2019 17:30:55 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Peng Ma <peng.ma@....com>
Cc:     dan.j.williams@...el.com, leoyang.li@....com,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [V2] dmaengine: fsl-edma: support little endian for edma driver

On 13-06-19, 10:27, Peng Ma wrote:
> Our platforms with below registers(CHCFG0 - CHCFG15) of eDMA
> *-----------------------------------------------------------*
> |     Offset   | Big endian Register| Little endian Register|
> |--------------|--------------------|-----------------------|
> |     0x0      |        CHCFG0      |           CHCFG3      |
> |--------------|--------------------|-----------------------|
> |     0x1      |        CHCFG1      |           CHCFG2      |
> |--------------|--------------------|-----------------------|
> |     0x2      |        CHCFG2      |           CHCFG1      |
> |--------------|--------------------|-----------------------|
> |     0x3      |        CHCFG3      |           CHCFG0      |
> |--------------|--------------------|-----------------------|
> |     ...      |        ......      |           ......      |
> |--------------|--------------------|-----------------------|
> |     0xC      |        CHCFG12     |           CHCFG15     |
> |--------------|--------------------|-----------------------|
> |     0xD      |        CHCFG13     |           CHCFG14     |
> |--------------|--------------------|-----------------------|
> |     0xE      |        CHCFG14     |           CHCFG13     |
> |--------------|--------------------|-----------------------|
> |     0xF      |        CHCFG15     |           CHCFG12     |
> *-----------------------------------------------------------*
> 
> Current eDMA driver does not support Little endian, so this
> patch is to improve edma driver to support little endian.

Applied, thanks

-- 
~Vinod