ALSA: lx6464es - fix device communication via command bus
commit16e43fe97575bea4191283060025d9749ca0629d
authorTim Blechmann <tim@klingt.org>
Tue, 22 Nov 2011 10:15:45 +0000 (22 11:15 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 9 Dec 2011 17:21:36 +0000 (9 09:21 -0800)
tree49b26ba0e2eeb38a98df84fd11cc80220932ab24
parentb94342e75946ed88a3048602390633b9f047d5f2
ALSA: lx6464es - fix device communication via command bus

commit a29878553a9a7b4c06f93c7e383527cf014d4ceb upstream.

commit 6175ddf06b6172046a329e3abfd9c901a43efd2e optimized the mem*io
functions that have been used to send commands to the device. these
optimizations somehow corrupted the communication with the lx6464es,
that resulted the device to be unusable with kernels after 2.6.33.

this patch emulates the memcpy_*_io functions via a loop to avoid these
problems.

Signed-off-by: Tim Blechmann <tim@klingt.org>
LKML-Reference: <4ECB5257.4040600@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
sound/pci/lx6464es/lx_core.c