| Message ID | 1311889830-13025-1-git-send-email-jbarnes@virtuousgeek.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 09d5683..01b6b08 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5274,7 +5274,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, } else if (is_sdvo && is_tv) factor = 20; - if (clock.m1 < factor * clock.n) + if (clock.m < factor * clock.n) fp |= FP_CB_TUNE; dpll = 0;
CB tuning is needed to handle potential process variations that might cause clock jitter for certain PLL settings. However, we were setting it incorrectly since we were using the wrong M value as a check (M1 when we needed to use the whole M value). Fix it up, making my HDMI attached display a little prettier (used to have occasional dots crawl across the display). Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> --- drivers/gpu/drm/i915/intel_display.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)