include/drm/bridge/dw_mipi_dsi.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) STMicroelectronics SA 2017
   4  *
   5  * Authors: Philippe Cornu <philippe.cornu@st.com>
   6  *          Yannick Fertre <yannick.fertre@st.com>
   7  */
   8
   9 #ifndef __DW_MIPI_DSI__
  10 #define __DW_MIPI_DSI__
  11
  12 #include <linux/types.h>
  13
  14 #include <drm/drm_modes.h>
  15
  16 struct drm_display_mode;
  17 struct drm_encoder;
  18 struct dw_mipi_dsi;
  19 struct mipi_dsi_device;
  20 struct platform_device;
  21
  22 struct dw_mipi_dsi_dphy_timing {
  23         u16 data_hs2lp;
  24         u16 data_lp2hs;
  25         u16 clk_hs2lp;
  26         u16 clk_lp2hs;
  27 };
  28
  29 struct dw_mipi_dsi_phy_ops {
  30         int (*init)(void *priv_data);
  31         void (*power_on)(void *priv_data);
  32         void (*power_off)(void *priv_data);
  33         int (*get_lane_mbps)(void *priv_data,
  34                              const struct drm_display_mode *mode,
  35                              unsigned long mode_flags, u32 lanes, u32 format,
  36                              unsigned int *lane_mbps);
  37         int (*get_timing)(void *priv_data, unsigned int lane_mbps,
  38                           struct dw_mipi_dsi_dphy_timing *timing);
  39         int (*get_esc_clk_rate)(void *priv_data, unsigned int *esc_clk_rate);
  40 };
  41
  42 struct dw_mipi_dsi_host_ops {
  43         int (*attach)(void *priv_data,
  44                       struct mipi_dsi_device *dsi);
  45         int (*detach)(void *priv_data,
  46                       struct mipi_dsi_device *dsi);
  47 };
  48
  49 struct dw_mipi_dsi_plat_data {
  50         void __iomem *base;
  51         unsigned int max_data_lanes;
  52
  53         enum drm_mode_status (*mode_valid)(void *priv_data,
  54                                            const struct drm_display_mode *mode);
  55
  56         const struct dw_mipi_dsi_phy_ops *phy_ops;
  57         const struct dw_mipi_dsi_host_ops *host_ops;
  58
  59         void *priv_data;
  60 };
  61
  62 struct dw_mipi_dsi *dw_mipi_dsi_probe(struct platform_device *pdev,
  63                                       const struct dw_mipi_dsi_plat_data
  64                                       *plat_data);
  65 void dw_mipi_dsi_remove(struct dw_mipi_dsi *dsi);
  66 int dw_mipi_dsi_bind(struct dw_mipi_dsi *dsi, struct drm_encoder *encoder);
  67 void dw_mipi_dsi_unbind(struct dw_mipi_dsi *dsi);
  68 void dw_mipi_dsi_set_slave(struct dw_mipi_dsi *dsi, struct dw_mipi_dsi *slave);
  69
  70 #endif /* __DW_MIPI_DSI__ */