linux-kernel - [PATCH 0/2] mxcmmc driver fixes

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Message-Id: <1412089178-21946-1-git-send-email-matteo.facchinetti@sirius-es.it>
Date:	Tue, 30 Sep 2014 16:59:36 +0200
From:	Matteo Facchinetti <matteo.facchinetti@...ius-es.it>
To:	chris@...ntf.net, ulf.hansson@...aro.org
Cc:	shc_work@...l.ru, s.hauer@...gutronix.de, peter.griffin@...aro.org,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linucppc-dev@...ts.ozlabs.org, agust@...x.de, gsi@...x.de,
	sbabic@...x.de,
	Matteo Facchinetti <matteo.facchinetti@...ius-es.it>
Subject: [PATCH 0/2] mxcmmc driver fixes

From: Matteo Facchinetti <matteo.facchinetti@...ius-es.it>

Hi,

this patchset contains fixes for the mxcmmc driver.

*Patch 1:
fix a rare race condition that breaks a data trasfer when mxcmmc
driver use dma.
To reproduce this error, use mmc as rootfs and start at boot time
a realtime Xenomai application.
The realtime it's not directly related but entropy produced by
ipipe scheduler highlights the problem.
When this event occurs, the mxcmmc watchdog expires,
this cause a read error and application doesn't run.

*Patch 2:
fix the default value for available voltages into mxcmci_probe

Applied to mainline Linux-3.17.0-rc6-next on arch mpc512x.
Tested on mpc5125twr evaluation board

Applied to custom Linux-3.9.4 on arch mpc512x
Tested on a mpc5125 custom board.

Regards,
Matteo Facchinetti
Sirius Electronic Systems

Matteo Facchinetti (2):
  mmc: mxcmmc: fix race condition when dma finish a data transfer
  mmc: mxcmmc: fix the default value for available voltages into
    mxcmci_probe

 drivers/mmc/host/mxcmmc.c | 27 ++++++++++-----------------
 1 file changed, 10 insertions(+), 17 deletions(-)

-- 
1.8.3.2

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