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vgaswitcheroo: switch the mux to the igp on power down when runpm is enabled

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commit f2bc561610 upstream.

Avoids blank screens on muxed systems when runpm is active.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=75917

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alex Deucher
2014-05-19 14:04:43 -04:00
committed by Greg Kroah-Hartman
parent 597ad8d27a
commit 7e1c10796c
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/vga/vga_switcheroo.c
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@@ -623,7 +623,8 @@ static int vga_switcheroo_runtime_suspend(struct device *dev)
ret = dev->bus->pm->runtime_suspend(dev);
if (ret)
return ret;
if (vgasr_priv.handler->switchto)
vgasr_priv.handler->switchto(VGA_SWITCHEROO_IGD);
vga_switcheroo_power_switch(pdev, VGA_SWITCHEROO_OFF);
return 0;
}