linux-kernel - Re: [PATCH 03/13] serial: 8250_dma: Support for deferred probing when requesting DMA channels

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Date:	Wed, 27 May 2015 13:41:41 +0300
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	<vinod.koul@...el.com>, <tony@...mide.com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<dan.j.williams@...el.com>, <dmaengine@...r.kernel.org>,
	<linux-serial@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-mmc@...r.kernel.org>, <linux-crypto@...r.kernel.org>,
	<linux-spi@...r.kernel.org>, <linux-media@...r.kernel.org>,
	<alsa-devel@...a-project.org>
Subject: Re: [PATCH 03/13] serial: 8250_dma: Support for deferred probing
 when requesting DMA channels

On 05/27/2015 01:41 PM, Peter Ujfalusi wrote:
> On 05/26/2015 05:44 PM, Greg Kroah-Hartman wrote:
>> On Tue, May 26, 2015 at 04:25:58PM +0300, Peter Ujfalusi wrote:
>>> Switch to use ma_request_slave_channel_compat_reason() to request the DMA
>>> channels. In case of error, return the error code we received including
>>> -EPROBE_DEFER
>>
>> I think you typed the function name wrong here :(
> 
> Oops. Also in other drivers :(

I mean in other patches ;)

> I will fix up the messages for the v2 series, which will not going to include
> the patch against 8250_dma.
> 
> If I understand things right around the 8250_* is that the
> serial8250_request_dma() which is called from serial8250_do_startup() is not
> called at module probe time, so it can not be used to handle deferred probing.
> 
> Thus this patch can be dropped IMO.
> 


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