Commit 3e9cf8f0 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915: Query the vswing levels per-lane for snps phy 



Prepare for per-lane drive settings by querying the desired vswing
level per-lane.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211006204937.30774-12-ville.syrjala@linux.intel.com


Reviewed-by: default avatarJosé Roberto de Souza <jose.souza@intel.com>
parent a905ced6

drivers/gpu/drm/i915/display/intel_snps_phy.c

+1 −1
Original line number Diff line number Diff line
@@ -58,7 +58,6 @@ void intel_snps_phy_set_signal_levels(struct intel_encoder *encoder, 
	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);

	const struct intel_ddi_buf_trans *trans;

	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);

	int level = intel_ddi_level(encoder, crtc_state, 0);

	int n_entries, ln;



	trans = encoder->get_buf_trans(encoder, crtc_state, &n_entries);
@@ -66,6 +65,7 @@ void intel_snps_phy_set_signal_levels(struct intel_encoder *encoder, 
		return;



	for (ln = 0; ln < 4; ln++) {

		int level = intel_ddi_level(encoder, crtc_state, ln);

		u32 val = 0;



		val |= REG_FIELD_PREP(SNPS_PHY_TX_EQ_MAIN, trans->entries[level].snps.vswing);