linux-kernel - Re: [RFC RESEND] serial: 8250: fix regression in 8250 uart driver

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Message-ID: <cca9fb6eca58d8a29e3070e3f34fa40f.squirrel@emailmg.ipower.com>
Date:	Tue, 14 Jun 2016 10:27:47 -0500
From:	dinh.linux@...iebear.net
To:	"Andy Shevchenko" <andriy.shevchenko@...ux.intel.com>
Cc:	"Dinh Nguyen" <dinguyen@...nel.org>,
	heikki.krogerus@...ux.intel.com, peter@...leysoftware.com,
	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [RFC RESEND] serial: 8250: fix regression in 8250 uart driver

> On Mon, 2016-06-13 at 21:59 -0500, Dinh Nguyen wrote:
>> Apologies, but my original email bounced for Andy and Heikki,
>> resending.
>> ----
>
> I suppose this one, i.e. commit dd4e91d538b3 ("dmaengine: slave means at
> least one of DMA_SLAVE, DMA_CYCLIC"), solves the issue.
>

Hmm...that commit didn't seem to fix my issue.

In regard to Peter's reply:

"The error is that your dmaengine driver doesn't support the functionality
required by the 8250 driver."

Does this mean that the 8250_dw.c driver can no longer use DMA?

Dinh