1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h
new file mode 100644
index 000000000000..f8f0ef87e977
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef _INTEL_DDI_BUF_TRANS_H_
+#define _INTEL_DDI_BUF_TRANS_H_
+
+#include <linux/types.h>
+
+struct drm_i915_private;
+struct intel_encoder;
+struct intel_crtc_state;
+
+struct ddi_buf_trans {
+	u32 trans1;	/* balance leg enable, de-emph level */
+	u32 trans2;	/* vref sel, vswing */
+	u8 i_boost;	/* SKL: I_boost; valid: 0x0, 0x1, 0x3, 0x7 */
+};
+
+struct bxt_ddi_buf_trans {
+	u8 margin;	/* swing value */
+	u8 scale;	/* scale value */
+	u8 enable;	/* scale enable */
+	u8 deemphasis;
+};
+
+struct cnl_ddi_buf_trans {
+	u8 dw2_swing_sel;
+	u8 dw7_n_scalar;
+	u8 dw4_cursor_coeff;
+	u8 dw4_post_cursor_2;
+	u8 dw4_post_cursor_1;
+};
+
+struct icl_mg_phy_ddi_buf_trans {
+	u32 cri_txdeemph_override_11_6;
+	u32 cri_txdeemph_override_5_0;
+	u32 cri_txdeemph_override_17_12;
+};
+
+struct tgl_dkl_phy_ddi_buf_trans {
+	u32 dkl_vswing_control;
+	u32 dkl_preshoot_control;
+	u32 dkl_de_emphasis_control;
+};
+
+bool is_hobl_buf_trans(const struct cnl_ddi_buf_trans *table);
+
+int intel_ddi_hdmi_num_entries(struct intel_encoder *encoder,
+			       const struct intel_crtc_state *crtc_state,
+			       int *default_entry);
+
+const struct ddi_buf_trans *
+intel_ddi_get_buf_trans_edp(struct intel_encoder *encoder, int *n_entries);
+const struct ddi_buf_trans *
+intel_ddi_get_buf_trans_fdi(struct drm_i915_private *dev_priv,
+			    int *n_entries);
+const struct ddi_buf_trans *
+intel_ddi_get_buf_trans_hdmi(struct intel_encoder *encoder,
+			     int *n_entries);
+const struct ddi_buf_trans *
+intel_ddi_get_buf_trans_dp(struct intel_encoder *encoder, int *n_entries);
+
+const struct bxt_ddi_buf_trans *
+bxt_get_buf_trans(struct intel_encoder *encoder,
+		  const struct intel_crtc_state *crtc_state,
+		  int *n_entries);
+
+const struct cnl_ddi_buf_trans *
+tgl_get_combo_buf_trans(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
+			int *n_entries);
+const struct tgl_dkl_phy_ddi_buf_trans *
+tgl_get_dkl_buf_trans(struct intel_encoder *encoder,
+		      const struct intel_crtc_state *crtc_state,
+		      int *n_entries);
+const struct cnl_ddi_buf_trans *
+jsl_get_combo_buf_trans(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
+			int *n_entries);
+const struct cnl_ddi_buf_trans *
+ehl_get_combo_buf_trans(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
+			int *n_entries);
+const struct cnl_ddi_buf_trans *
+icl_get_combo_buf_trans(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
+			int *n_entries);
+const struct icl_mg_phy_ddi_buf_trans *
+icl_get_mg_buf_trans(struct intel_encoder *encoder,
+		     const struct intel_crtc_state *crtc_state,
+		     int *n_entries);
+
+const struct cnl_ddi_buf_trans *
+cnl_get_buf_trans(struct intel_encoder *encoder,
+		  const struct intel_crtc_state *crtc_state,
+		  int *n_entries);
+
+#endif