drivers/gpu/drm/i915/display/intel_dpio_phy.h

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * Copyright © 2019 Intel Corporation
   4  */
   5
   6 #ifndef __INTEL_DPIO_PHY_H__
   7 #define __INTEL_DPIO_PHY_H__
   8
   9 #include <linux/types.h>
  10
  11 enum dpio_channel;
  12 enum dpio_phy;
  13 enum port;
  14 struct drm_i915_private;
  15 struct intel_crtc_state;
  16 struct intel_encoder;
  17
  18 void bxt_port_to_phy_channel(struct drm_i915_private *dev_priv, enum port port,
  19                              enum dpio_phy *phy, enum dpio_channel *ch);
  20 void bxt_ddi_phy_set_signal_level(struct drm_i915_private *dev_priv,
  21                                   enum port port, u32 margin, u32 scale,
  22                                   u32 enable, u32 deemphasis);
  23 void bxt_ddi_phy_init(struct drm_i915_private *dev_priv, enum dpio_phy phy);
  24 void bxt_ddi_phy_uninit(struct drm_i915_private *dev_priv, enum dpio_phy phy);
  25 bool bxt_ddi_phy_is_enabled(struct drm_i915_private *dev_priv,
  26                             enum dpio_phy phy);
  27 bool bxt_ddi_phy_verify_state(struct drm_i915_private *dev_priv,
  28                               enum dpio_phy phy);
  29 u8 bxt_ddi_phy_calc_lane_lat_optim_mask(u8 lane_count);
  30 void bxt_ddi_phy_set_lane_optim_mask(struct intel_encoder *encoder,
  31                                      u8 lane_lat_optim_mask);
  32 u8 bxt_ddi_phy_get_lane_lat_optim_mask(struct intel_encoder *encoder);
  33
  34 void chv_set_phy_signal_level(struct intel_encoder *encoder,
  35                               const struct intel_crtc_state *crtc_state,
  36                               u32 deemph_reg_value, u32 margin_reg_value,
  37                               bool uniq_trans_scale);
  38 void chv_data_lane_soft_reset(struct intel_encoder *encoder,
  39                               const struct intel_crtc_state *crtc_state,
  40                               bool reset);
  41 void chv_phy_pre_pll_enable(struct intel_encoder *encoder,
  42                             const struct intel_crtc_state *crtc_state);
  43 void chv_phy_pre_encoder_enable(struct intel_encoder *encoder,
  44                                 const struct intel_crtc_state *crtc_state);
  45 void chv_phy_release_cl2_override(struct intel_encoder *encoder);
  46 void chv_phy_post_pll_disable(struct intel_encoder *encoder,
  47                               const struct intel_crtc_state *old_crtc_state);
  48
  49 void vlv_set_phy_signal_level(struct intel_encoder *encoder,
  50                               const struct intel_crtc_state *crtc_state,
  51                               u32 demph_reg_value, u32 preemph_reg_value,
  52                               u32 uniqtranscale_reg_value, u32 tx3_demph);
  53 void vlv_phy_pre_pll_enable(struct intel_encoder *encoder,
  54                             const struct intel_crtc_state *crtc_state);
  55 void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder,
  56                                 const struct intel_crtc_state *crtc_state);
  57 void vlv_phy_reset_lanes(struct intel_encoder *encoder,
  58                          const struct intel_crtc_state *old_crtc_state);
  59
  60 #endif /* __INTEL_DPIO_PHY_H__ */