linux-kernel - Re: [PATCH v1 11/12] serial: 8250: don't use slave_id of dma_slave

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Message-ID: <20140826223857.GB29137@kroah.com>
Date:	Tue, 26 Aug 2014 15:38:57 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:	Hans-Christian Egtvedt <egtvedt@...fundet.no>,
	Haavard Skinnemoen <hskinnemoen@...il.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Mark Brown <broonie@...nel.org>,
	Hein Tibosch <hein_tibosch@...oo.es>,
	Russell King <linux@....linux.org.uk>,
	Takashi Iwai <tiwai@...e.de>,
	Kweh Hock Leong <hock.leong.kweh@...el.com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Alan Cox <alan@...ux.intel.com>, dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 11/12] serial: 8250: don't use slave_id of
 dma_slave_config

On Tue, Aug 19, 2014 at 08:29:22PM +0300, Andy Shevchenko wrote:
> That field has been deprecated in favour of getting the necessary information
> from ACPI or DT.
> 
> However, we still need to deal systems that are PCI only (no ACPI to back up)
> like Intel Bay Trail. In order to support such systems, we explicitly bind
> setup() to the appropriate DMA filter function and its corresponding parameter.
> Then when serial8250_request_dma() doesn't find the channel via ACPI or DT, it
> falls back to use the given filter function.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
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