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drm/i915: reuse the sdvo tv clock adjustment in ilk mode_set

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Jesse extracted this nice helper in his i9xx_crtc_mode_set refactor,
but we have the identical code in ironlake_ccrtc_mode_set. And that
function is huge, so extracting some code full of magic numbers is
always nice.

Noticed while trying to get a handle on our dp clock code.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-05-30 14:52:26 +02:00
parent e5153dc09c
commit 61e9653f0d
1 changed files with 4 additions and 19 deletions
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23
drivers/gpu/drm/i915/intel_display.c
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@ -4395,25 +4395,10 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
&clock,
&reduced_clock);
}
/* SDVO TV has fixed PLL values depend on its clock range,
this mirrors vbios setting. */
if (is_sdvo && is_tv) {
if (adjusted_mode->clock >= 100000
&& adjusted_mode->clock < 140500) {
clock.p1 = 2;
clock.p2 = 10;
clock.n = 3;
clock.m1 = 16;
clock.m2 = 8;
} else if (adjusted_mode->clock >= 140500
&& adjusted_mode->clock <= 200000) {
clock.p1 = 1;
clock.p2 = 10;
clock.n = 6;
clock.m1 = 12;
clock.m2 = 8;
}
}
if (is_sdvo && is_tv)
i9xx_adjust_sdvo_tv_clock(adjusted_mode, &clock);
/* FDI link */
pixel_multiplier = intel_mode_get_pixel_multiplier(adjusted_mode);