diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_ddi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index a14baea12800..9c321b10abbf 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -1606,6 +1606,9 @@ static void dg1_ddi_enable_clock(struct intel_encoder *encoder, struct intel_shared_dpll *pll = crtc_state->shared_dpll; enum phy phy = intel_port_to_phy(dev_priv, encoder->port); + if (drm_WARN_ON(&dev_priv->drm, !pll)) + return; + /* * If we fail this, something went very wrong: first 2 PLLs should be * used by first 2 phys and last 2 PLLs by last phys @@ -1663,6 +1666,9 @@ static void icl_ddi_combo_enable_clock(struct intel_encoder *encoder, sel = ICL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy); } + if (drm_WARN_ON(&dev_priv->drm, !pll)) + return; + mutex_lock(&dev_priv->dpll.lock); /* |