Daniel Drake c420df2b1e viafb: don't touch clock state on OLPC XO-1.5 ...

commit 012a121184 upstream.

As detailed in the thread titled "viafb PLL/clock tweaking causes XO-1.5
instability," enabling or disabling the IGA1/IGA2 clocks causes occasional
stability problems during suspend/resume cycles on this platform.

This is rather odd, as the documentation suggests that clocks have two
states (on/off) and the default (stable) configuration is configured to
enable the clock only when it is needed. However, explicitly enabling *or*
disabling the clock triggers this system instability, suggesting that there
is a 3rd state at play here.

Leaving the clock enable/disable registers alone solves this problem.
This fixes spurious reboots during suspend/resume behaviour introduced by
commit b692a63a.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2012-10-21 09:17:10 -07:00

..

accel.c

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

2010-10-28 09:35:11 -07:00

accel.h

viafb: fix hardware acceleration for suspend & resume

2010-10-24 13:04:53 +00:00

chip.h

viafb: remove unused max_hres/vres

2011-03-23 13:04:35 +00:00

debug.h

viafb: chip.h, debug.h

2008-10-16 11:21:41 -07:00

dvi.c

viafb: replace custom return values

2011-03-27 03:36:00 +00:00

dvi.h

viafb: replace custom return values

2011-03-27 03:36:00 +00:00

global.c

viafb: some small cleanup for global variables

2011-03-27 02:54:32 +00:00

global.h

viafb: some small cleanup for global variables

2011-03-27 02:54:32 +00:00

hw.c

Merge branch 'viafb-pll' into viafb-next

2011-04-24 13:18:48 +00:00

hw.h

Merge branch 'viafb-pll' into viafb-next

2011-04-24 13:18:48 +00:00

ioctl.c

viafb: reduce viafb_set_iga_path usage

2010-09-24 02:14:48 +00:00

ioctl.h

viafb: remove ioctls which break the framebuffer interface

2010-07-23 14:43:05 +00:00

lcd.c

Merge branch 'viafb-pll' into viafb-next

2011-04-24 13:18:48 +00:00

lcd.h

viafb: replace custom return values

2011-03-27 03:36:00 +00:00

Makefile

viafb: split clock and PLL code to an extra file

2011-03-24 13:30:09 +00:00

share.h

viafb: correct sync polarity for OLPC DCON

2011-12-09 08:52:23 -08:00

tblDPASetting.c

viafb: kill lcd_panel_id

2011-03-09 18:58:26 +00:00

tblDPASetting.h

viafb: kill lcd_panel_id

2011-03-09 18:58:26 +00:00

via_clock.c

viafb: don't touch clock state on OLPC XO-1.5

2012-10-21 09:17:10 -07:00

via_clock.h

viafb: add engine clock support

2011-03-26 02:53:21 +00:00

via_i2c.c

video via: make local variables static

2011-03-09 17:06:29 +00:00

via_modesetting.c

viafb: move some include files to include/linux

2010-05-11 16:07:59 -06:00

via_modesetting.h

viafb: improve pitch handling

2011-11-11 09:36:13 -08:00

via_utility.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

via_utility.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

via-core.c

viafb: try to map less memory in case of failure

2011-04-25 20:01:46 +00:00

via-gpio.c

gpio/via: rename VIA local config struct

2011-05-20 00:40:20 -06:00

viafbdev.c

viafb: improve pitch handling

2011-11-11 09:36:13 -08:00

viafbdev.h

Merge branch 'viafb-next' of git://github.com/schandinat/linux-2.6

2011-05-22 12:39:58 -07:00

viamode.c

viafb: remove unused CEA mode

2011-04-26 08:10:33 +00:00

viamode.h

viafb: remove unused CEA mode

2011-04-26 08:10:33 +00:00

vt1636.c

viafb: kill lcd_panel_id

2011-03-09 18:58:26 +00:00

vt1636.h

viafb: rework the I2C support in the VIA framebuffer driver

2010-04-27 13:01:45 -06:00