linux-kernel - Re: [PATCH v2 4/5] dmaengine: sprd: Add Spreadtrum DMA configuration

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Message-ID: <CAMz4ku+=NtjqTvxXy6mefGgZROX3D13vuvcrByhd=KzG=vQ+fA@mail.gmail.com>
Date:   Mon, 30 Apr 2018 16:18:02 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     Vinod Koul <vinod.koul@...el.com>
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Eric Long <eric.long@...eadtrum.com>,
        Mark Brown <broonie@...nel.org>, dmaengine@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 4/5] dmaengine: sprd: Add Spreadtrum DMA configuration

Hi Vinod,

On 27 April 2018 at 14:24, Vinod Koul <vinod.koul@...el.com> wrote:
> On Thu, Apr 19, 2018 at 10:00:49AM +0800, Baolin Wang wrote:
>
>> +/*
>> + * struct sprd_dma_config - DMA configuration structure
>> + * @src_addr: the physical address where DMA slave data should be read
>> + * @dst_addr: the physical address where DMA slave data should be written
>> + * @fragment_len: specify one fragment transfer length
>> + * @block_len: specify one block transfer length
>> + * @transcation_len: specify one transcation transfer length
>> + * @src_step: source transfer step
>> + * @dst_step: destination transfer step
>> + * @src_datawidth: source transfer data width
>> + * @dst_datawidth: destination transfer data width
>> + * @wrap_ptr: wrap pointer address, once the transfer address reaches the
>> + * 'wrap_ptr', the next transfer address will jump to the 'wrap_to' address.
>> + * @wrap_to: wrap jump to address
>> + * @req_mode: specify the DMA request mode
>> + * @int_mode: specify the DMA interrupt type
>> + * @slave_id: slave channel requester id
>> + */
>> +struct sprd_dma_config {
>
> can you please not duplicate the dma_slave_config here. If you want to save
> your own values then please embed dma_slave_config here

Thanks for your suggestion. Will fix this in next version.

-- 
Baolin.wang
Best Regards