AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/video/via
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Daniel Drake 012a121184 viafb: don't touch clock state on OLPC XO-1.5 
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>
Cc: stable@vger.kernel.org
2012-09-22 21:31:01 +00:00
..
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: LCD bpp cleanup 2012-03-04 12:05:15 +00:00
debug.h
dvi.c viafb: modetable conversion 2012-03-08 18:41:35 +00:00
dvi.h viafb: make single framebuffer multiple adapter mode work 2012-02-10 19:28:39 +00:00
global.c viafb: get rid of the remaining modetable structure assumptions 2011-08-07 13:34:35 +00:00
global.h viafb: get rid of the remaining modetable structure assumptions 2011-08-07 13:34:35 +00:00
hw.c Merge branch 'viafb-next' of git://github.com/schandinat/linux-2.6 into fbdev-next 2012-03-13 23:19:58 +00:00
hw.h viafb: modetable conversion 2012-03-08 18:41:35 +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 viafb: modetable conversion 2012-03-08 18:41:35 +00:00
lcd.h viafb: make SAMM to also work on LCD 2012-02-12 22:12:45 +00:00
Makefile viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
share.h viafb: modetable conversion 2012-03-08 18:41:35 +00:00
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_aux_ch7301.c viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
via_aux_edid.c viafb: NULL dereference on allocation failure in query_edid() 2012-02-17 07:56:21 +00:00
via_aux_sii164.c viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
via_aux_vt1621.c viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
via_aux_vt1622.c viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
via_aux_vt1625.c viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
via_aux_vt1631.c viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
via_aux_vt1632.c viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
via_aux_vt1636.c viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
via_aux.c viafb: add initial EDID support 2012-02-13 07:28:14 +00:00
via_aux.h viafb: add initial EDID support 2012-02-13 07:28:14 +00:00
via_clock.c viafb: don't touch clock state on OLPC XO-1.5 2012-09-22 21:31:01 +00:00
via_clock.h viafb: add engine clock support 2011-03-26 02:53:21 +00:00
via_i2c.c viafb: fix I2C emulation on GPIO ports 2012-02-12 22:15:16 +00:00
via_modesetting.c viafb: remove superfluous register unlocking/locking 2011-08-05 12:47:06 +00:00
via_modesetting.h viafb: use more compact modesetting functions 2011-08-05 12:46:32 +00:00
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: fix pointer type missmatch 2011-08-06 20:18:53 +00:00
via-gpio.c video: Add export.h for THIS_MODULE/EXPORT_SYMBOL to drivers/video 2011-10-31 19:31:33 -04:00
viafbdev.c video/via: Convert to kstrtou8_from_user 2012-05-08 17:00:12 +00:00
viafbdev.h viafb: add auxiliary device management infrastructure 2012-02-10 19:11:51 +00:00
viamode.c viafb: modetable conversion 2012-03-08 18:41:35 +00:00
viamode.h viafb: modetable conversion 2012-03-08 18:41:35 +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