diff options
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 482b5e570d8..173add1d819 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -353,10 +353,14 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, aux_clock_divider = 200; /* SNB & IVB eDP input clock at 400Mhz */ else aux_clock_divider = 225; /* eDP input clock at 450Mhz */ - } else if (HAS_PCH_SPLIT(dev)) + } else if (dev_priv->pch_id == INTEL_PCH_LPT_DEVICE_ID_TYPE) { + /* Workaround for non-ULT HSW */ + aux_clock_divider = 74; + } else if (HAS_PCH_SPLIT(dev)) { aux_clock_divider = DIV_ROUND_UP(intel_pch_rawclk(dev), 2); - else + } else { aux_clock_divider = intel_hrawclk(dev) / 2; + } if (IS_GEN6(dev)) precharge = 3; |