From 31e914a2307a29dfde8027cffa70292341bd379d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 6 Oct 2021 23:49:29 +0300 Subject: [PATCH] drm/i915: Query the vswing levels per-lane for icl combo phy MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Prepare for per-lane drive settings by querying the desired vswing level per-lane. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20211006204937.30774-9-ville.syrjala@linux.intel.com Reviewed-by: José Roberto de Souza --- drivers/gpu/drm/i915/display/intel_ddi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 327c5db..6617e81 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -1040,7 +1040,6 @@ static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - int level = intel_ddi_level(encoder, crtc_state, 0); const struct intel_ddi_buf_trans *trans; enum phy phy = intel_port_to_phy(dev_priv, encoder->port); int n_entries, ln; @@ -1070,6 +1069,8 @@ static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder, /* Program PORT_TX_DW2 */ for (ln = 0; ln < 4; ln++) { + int level = intel_ddi_level(encoder, crtc_state, ln); + val = intel_de_read(dev_priv, ICL_PORT_TX_DW2_LN(ln, phy)); val &= ~(SWING_SEL_LOWER_MASK | SWING_SEL_UPPER_MASK | RCOMP_SCALAR_MASK); @@ -1083,6 +1084,8 @@ static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder, /* Program PORT_TX_DW4 */ /* We cannot write to GRP. It would overwrite individual loadgen. */ for (ln = 0; ln < 4; ln++) { + int level = intel_ddi_level(encoder, crtc_state, ln); + val = intel_de_read(dev_priv, ICL_PORT_TX_DW4_LN(ln, phy)); val &= ~(POST_CURSOR_1_MASK | POST_CURSOR_2_MASK | CURSOR_COEFF_MASK); @@ -1094,6 +1097,8 @@ static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder, /* Program PORT_TX_DW7 */ for (ln = 0; ln < 4; ln++) { + int level = intel_ddi_level(encoder, crtc_state, ln); + val = intel_de_read(dev_priv, ICL_PORT_TX_DW7_LN(ln, phy)); val &= ~N_SCALAR_MASK; val |= N_SCALAR(trans->entries[level].icl.dw7_n_scalar); -- 2.7.4