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authorVille Syrjälä <ville.syrjala@linux.intel.com>2013-09-24 21:26:31 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-10-04 15:32:57 +0200
commit47288fd108696a3a52cddc167fefe3c609d56281 (patch)
tree2e87e4488586b8fa966de84c4ce577683b35d867
parentd92166ef18dd9e7a334212f324bcc5d12b3859e5 (diff)
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: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r--drivers/gpu/drm/i915/intel_display.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 1ea6d49b9380..0e87970a03f6 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -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)