linux-kernel - [RFC PATCH 0/2] dmaengine: at_hdmac: fix locking according to slave DMA requirements

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Message-ID: <cover.1390832343.git.nicolas.ferre@atmel.com>
Date:	Mon, 27 Jan 2014 15:23:22 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	<jouko.haapaluoma@...ice.com>
CC:	<Sami.Pietikainen@...ice.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <dmaengine@...r.kernel.org>,
	<vinod.koul@...el.com>, Nicolas Ferre <nicolas.ferre@...el.com>
Subject: [RFC PATCH 0/2] dmaengine: at_hdmac: fix locking according to slave DMA requirements

Hi,

This is an attempt to solve the locking issue that we currently have with the
Atmel at_hdmac dmaengine driver.
I tested these patches with several drivers but may need more coverage before
making them permanent...

Comments welcome.

Nicolas Ferre (2):
  dmaengine: at_hdmac: remove the call to issue_pending from tx_status
  dmaengine: at_hdmac: run callback function with no lock held nor
    interrupts disabled

 drivers/dma/at_hdmac.c | 128 +++++++++++++++++++++++++++----------------------
 1 file changed, 71 insertions(+), 57 deletions(-)

-- 
1.8.2.2

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