[Bug 24462] r600: spread spectrum: flickering screen (bisected)

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=24462





--- Comment #2 from Luca Tettamanti <kronos.it@gmail.com>  2010-12-08 20:27:11 ---
(In reply to comment #1)
> Created an attachment (id=39252)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=39252) [details]
> possible fix
> 
> Does this patch help?

No, flickering it's still there. The parameters passed to
EnableSpreadSpectrumOnPPLL with 2.6.36 and 2.6.37-rc5 are:

ss->percentage = 0x1e
ss->type = 0x1
ss->step = 0x1
ss->delay = 0x2a
ss->range = 0x2
pll_id = 0x0

but 2.6.36 uses ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION, while the newer
kernel uses ENABLE_LVDS_SS_PARAMETERS_V2 for the parameters (the only
difference is that the latter does not have ucPpll); is this correct?

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