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 u32 deemph_reg_value, u32 margin_reg_value, 36 bool uniq_trans_scale); 37 void chv_data_lane_soft_reset(struct intel_encoder *encoder, 38 const struct intel_crtc_state *crtc_state, 39 bool reset); 40 void chv_phy_pre_pll_enable(struct intel_encoder *encoder, 41 const struct intel_crtc_state *crtc_state); 42 void chv_phy_pre_encoder_enable(struct intel_encoder *encoder, 43 const struct intel_crtc_state *crtc_state); 44 void chv_phy_release_cl2_override(struct intel_encoder *encoder); 45 void chv_phy_post_pll_disable(struct intel_encoder *encoder, 46 const struct intel_crtc_state *old_crtc_state); 47 48 void vlv_set_phy_signal_level(struct intel_encoder *encoder, 49 u32 demph_reg_value, u32 preemph_reg_value, 50 u32 uniqtranscale_reg_value, u32 tx3_demph); 51 void vlv_phy_pre_pll_enable(struct intel_encoder *encoder, 52 const struct intel_crtc_state *crtc_state); 53 void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder, 54 const struct intel_crtc_state *crtc_state); 55 void vlv_phy_reset_lanes(struct intel_encoder *encoder, 56 const struct intel_crtc_state *old_crtc_state); 57 58 #endif /* __INTEL_DPIO_PHY_H__ */ 59