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Commit 49e497ef authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter
Browse files

drm/i915: Don't lie about findind suitable PLL settings on VLV 



If vlv_find_best_dpll() couldn't find suitable PLL settings,
just say so instead of lying to caller.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent dc730512

drivers/gpu/drm/i915/intel_display.c

+4 −1
Original line number Diff line number Diff line
@@ -662,6 +662,7 @@ vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc, 
	unsigned int bestppm = 1000000;

	/* min update 19.2 MHz */

	int max_n = min(limit->n.max, refclk / 19200);

	bool found = false;



	target *= 5; /* fast clock */
@@ -692,18 +693,20 @@ vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc, 
					if (ppm < 100 && clock.p > best_clock->p) {

						bestppm = 0;

						*best_clock = clock;

						found = true;

					}



					if (bestppm >= 10 && ppm < bestppm - 10) {

						bestppm = ppm;

						*best_clock = clock;

						found = true;

					}

				}

			}

		}

	}



	return true;

	return found;

}



bool intel_crtc_active(struct drm_crtc *crtc)