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-rw-r--r--drivers/gpu/drm/i915/intel_ddi.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index bfcc58ffecb..ebe52937246 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -898,6 +898,9 @@ bool intel_ddi_pll_mode_set(struct drm_crtc *crtc, int clock)
plls->spll_refcount++;
reg = SPLL_CTL;
intel_crtc->ddi_pll_sel = PORT_CLK_SEL_SPLL;
+ } else {
+ DRM_ERROR("SPLL already in use\n");
+ return false;
}
WARN(I915_READ(reg) & SPLL_PLL_ENABLE,