[Intel-gfx] [PATCH 14/14] drm/i915: Don't lie about findind suitable PLL settings on VLV

[ville . syrjala]

From: Ville Syrjälä <ville.syrj...@linux.intel.com>

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

Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index b57ced9..c919582 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -663,6 +663,7 @@ 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 */
 
@@ -691,18 +692,20 @@ 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)
-- 
1.8.1.5

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