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matroxfb: restore the registers M_ACCESS and M_PITCH
authorMikulas Patocka <mpatocka@redhat.com>
Thu, 23 Jan 2014 19:39:04 +0000 (14:39 -0500)
committerBen Hutchings <ben@decadent.org.uk>
Wed, 30 Apr 2014 15:23:19 +0000 (16:23 +0100)
commit a772d4736641ec1b421ad965e13457c17379fc86 upstream.

When X11 is running and the user switches back to console, the card
modifies the content of registers M_MACCESS and M_PITCH in periodic
intervals.

This patch fixes it by restoring the content of these registers before
issuing any accelerator command.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/video/matrox/matroxfb_accel.c patch | blob | history
drivers/video/matrox/matroxfb_base.h patch | blob | history

diff --cc drivers/video/matrox/matroxfb_accel.c
Simple merge
diff --cc drivers/video/matrox/matroxfb_base.h
Simple merge
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