linux-kernel - Re: [PATCH v2] media: rcar_drif: Use dma_request_chan() instead dma_request_slave

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Message-ID: <047fb0e6-9d43-1d9b-0e3a-2da58613c640@ti.com>
Date:   Wed, 26 Feb 2020 11:22:08 +0200
From:   Peter Ujfalusi <peter.ujfalusi@...com>
To:     Hans Verkuil <hverkuil@...all.nl>, <mchehab@...nel.org>,
        <rashanmu@...il.com>, <geert@...ux-m68k.org>
CC:     <vkoul@...nel.org>, <linux-media@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH v2] media: rcar_drif: Use dma_request_chan() instead
 dma_request_slave_channel()

Hi Hans,

On 2/25/20 2:07 PM, Hans Verkuil wrote:
> Hi Peter,
> 
> On 1/20/20 1:47 PM, Peter Ujfalusi wrote:
>> dma_request_slave_channel() is a wrapper on top of dma_request_chan()
>> eating up the error code.
>>
>> By using dma_request_chan() directly the driver can support deferred
>> probing against DMA.
>>
>> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
>> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
> 
> Unfortunately the v1 version of this patch got merged, so can you make a
> new patch against the current media_tree master to bring it up to date
> with this v3?

Sure, I'll send an update patch in couple of minutes.

> My apologies for this.

No issue

Regards,
- Péter

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