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From: Linus Walleij <linus.walleij@linaro.org>
To: Guennadi Liakhovetski <g.liakhovetski@gmx.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "linux-serial@vger.kernel.org" <linux-serial@vger.kernel.org>,
	Jongsung Kim <neidhard.kim@lge.com>,
	Chanho Min <chanho.min@lge.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	Russell King <rmk+kernel@arm.linux.org.uk>,
	Phil Edworthy <phil@edworthys.org>
Subject: Re: [PATCH] serial: pl011: also enable DMA Rx polling with no platform data
Date: Thu, 12 Dec 2013 14:24:37 +0100	[thread overview]
Message-ID: <CACRpkdZ2n64EnVaB81bo578jmMzmW+OMGjehVTO=7Pa1zBGAvA@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.64.1312120923160.32185@axis700.grange>

On Thu, Dec 12, 2013 at 10:18 AM, Guennadi Liakhovetski
<g.liakhovetski@gmx.de> wrote:

> An addendum to this patch, that might well lead to dropping it and,
> possibly, doing the opposite - removing the DMA Rx polling completely.

I agree with your reasoning, but not with dropping the Rx code
altogether. However we should also drop my patch so we restore
the opt-in-only characteristic until we can rootcause this.

Greg can you please drop or revert
commit 17438217a6f5e33d920ed3821a4b857311cc2872
"serial: pl011: use DMA RX polling by default"
from the TTY tree until this has been sorted out?

Yours,
Linus Walleij

WARNING: multiple messages have this Message-ID (diff)
From: linus.walleij@linaro.org (Linus Walleij)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] serial: pl011: also enable DMA Rx polling with no platform data
Date: Thu, 12 Dec 2013 14:24:37 +0100	[thread overview]
Message-ID: <CACRpkdZ2n64EnVaB81bo578jmMzmW+OMGjehVTO=7Pa1zBGAvA@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.64.1312120923160.32185@axis700.grange>

On Thu, Dec 12, 2013 at 10:18 AM, Guennadi Liakhovetski
<g.liakhovetski@gmx.de> wrote:

> An addendum to this patch, that might well lead to dropping it and,
> possibly, doing the opposite - removing the DMA Rx polling completely.

I agree with your reasoning, but not with dropping the Rx code
altogether. However we should also drop my patch so we restore
the opt-in-only characteristic until we can rootcause this.

Greg can you please drop or revert
commit 17438217a6f5e33d920ed3821a4b857311cc2872
"serial: pl011: use DMA RX polling by default"
from the TTY tree until this has been sorted out?

Yours,
Linus Walleij

  reply	other threads:[~2013-12-12 13:24 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-28  9:41 [PATCH] serial: pl011: use DMA RX polling by default Linus Walleij
2013-11-28  9:41 ` Linus Walleij
2013-12-09 11:53 ` [PATCH] serial: pl011: also enable DMA Rx polling with no platform data Guennadi Liakhovetski
2013-12-09 11:53   ` Guennadi Liakhovetski
2013-12-09 14:33   ` Linus Walleij
2013-12-09 14:33     ` Linus Walleij
2013-12-12  9:18   ` Guennadi Liakhovetski
2013-12-12  9:18     ` Guennadi Liakhovetski
2013-12-12 13:24     ` Linus Walleij [this message]
2013-12-12 13:24       ` Linus Walleij
2013-12-17 17:34       ` Greg Kroah-Hartman
2013-12-17 17:34         ` Greg Kroah-Hartman

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