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Date: Tue, 26 Aug 2014 15:38:57 -0700
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>,
        Haavard Skinnemoen <hskinnemoen@gmail.com>,
        Vinod Koul <vinod.koul@intel.com>, Mark Brown <broonie@kernel.org>,
        Hein Tibosch <hein_tibosch@yahoo.es>,
        Russell King <linux@arm.linux.org.uk>, Takashi Iwai <tiwai@suse.de>,
        Kweh Hock Leong <hock.leong.kweh@intel.com>,
        Mika Westerberg <mika.westerberg@linux.intel.com>,
        Alan Cox <alan@linux.intel.com>, dmaengine@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 11/12] serial: 8250: don't use slave_id of
 dma_slave_config
Message-ID: <20140826223857.GB29137@kroah.com>
References: <1408469363-15901-1-git-send-email-andriy.shevchenko@linux.intel.com>
 <1408469363-15901-12-git-send-email-andriy.shevchenko@linux.intel.com>
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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@linux.intel.com>

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