From: Rodrigo Vivi Date: Tue, 29 Aug 2017 23:22:29 +0000 (-0700) Subject: drm/i915/cnl: Fix DDI hdmi level selection. X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=bf50355645790a385b9ff04f33dea6b316c0dc31;p=linux.git drm/i915/cnl: Fix DDI hdmi level selection. Let's get a proper HDMI DDI entry level for vswing programming sequences on CNL. Spec doesn't specify any default for HDMI tables, so let's pick the last entry as the default for now. Signed-off-by: Rodrigo Vivi Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20170829232230.23051-7-rodrigo.vivi@intel.com --- diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 3ce02cbd44839..f1757a8e481ab 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -660,7 +660,10 @@ static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port por if (IS_GEN9_LP(dev_priv)) return hdmi_level; - if (IS_GEN9_BC(dev_priv)) { + if (IS_CANNONLAKE(dev_priv)) { + cnl_get_buf_trans_hdmi(dev_priv, &n_hdmi_entries); + hdmi_default_entry = n_hdmi_entries - 1; + } else if (IS_GEN9_BC(dev_priv)) { skl_get_buf_trans_hdmi(dev_priv, &n_hdmi_entries); hdmi_default_entry = 8; } else if (IS_BROADWELL(dev_priv)) {