[Intel-gfx] [PATCH] DRM/i915: Don't delete DPLL Multiplier during DAC init.

[Daniel Vetter]

On Sun, Oct 14, 2012 at 04:33:11PM +0200, Egbert Eich wrote:
> The DPLL multipiler is set up in intel_display.c:i9xx_update_pll()
> called from i9xx_crtc_mode_set().
> There the DPLL multiplier is adjusted so that the SDVO gets a sufficient
> bus clock.
> When cloning a CRTC between an SDVO driven encoder and the standard
> DAC the DAC setup code reseted the multiplier value to 1 thus undoing
> the correct setup. There is no need to touch the multiplier in the DAC
> setup code: the correct value (i.e. 1 in case no SDVO encoder is used)
> is set by i9xx_update_pll() already.
> A comment at the code suggested that this code is a left over from the
> days when there was no setup for clone modes.
> 
> Signed-off-by: Egbert Eich <eich at suse.de>
Picked up for -fixes, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch