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Commit dccc7228 authored by Manasi Navare's avatar Manasi Navare Committed by Paulo Zanoni
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drm/i915/icl: Add DDI HDMI level selection for ICL 



This patch adds a proper HDMI DDI entry level for vswing
programming sequences on ICL.

Spec doesn't specify any default for HDMI tables,
so let's pick the last entry as the default for now
to stay consistent with older platform like CNL.

Cc: Rakshmi Bhatia <rakshmi.bhatia@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: default avatarManasi Navare <manasi.d.navare@intel.com>
Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180522002558.29262-8-paulo.r.zanoni@intel.com
parent e9e7dc41

drivers/gpu/drm/i915/intel_ddi.c

+8 −1
Original line number Diff line number Diff line
@@ -915,7 +915,14 @@ static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port por 


	level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift;



	if (IS_CANNONLAKE(dev_priv)) {

	if (IS_ICELAKE(dev_priv)) {

		if (port == PORT_A || port == PORT_B)

			icl_get_combo_buf_trans(dev_priv, port,

						INTEL_OUTPUT_HDMI, &n_entries);

		else

			n_entries = ARRAY_SIZE(icl_mg_phy_ddi_translations);

		default_entry = n_entries - 1;

	} else if (IS_CANNONLAKE(dev_priv)) {

		cnl_get_buf_trans_hdmi(dev_priv, &n_entries);

		default_entry = n_entries - 1;

	} else if (IS_GEN9_LP(dev_priv)) {