drm/bridge/dw_mipi_dsi.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * Copyright (C) STMicroelectronics SA 2017
0004  *
0005  * Authors: Philippe Cornu <philippe.cornu@st.com>
0006  *          Yannick Fertre <yannick.fertre@st.com>
0007  */
0008
0009 #ifndef __DW_MIPI_DSI__
0010 #define __DW_MIPI_DSI__
0011
0012 #include <linux/types.h>
0013
0014 #include <drm/drm_modes.h>
0015
0016 struct drm_display_mode;
0017 struct drm_encoder;
0018 struct dw_mipi_dsi;
0019 struct mipi_dsi_device;
0020 struct platform_device;
0021
0022 struct dw_mipi_dsi_dphy_timing {
0023     u16 data_hs2lp;
0024     u16 data_lp2hs;
0025     u16 clk_hs2lp;
0026     u16 clk_lp2hs;
0027 };
0028
0029 struct dw_mipi_dsi_phy_ops {
0030     int (*init)(void *priv_data);
0031     void (*power_on)(void *priv_data);
0032     void (*power_off)(void *priv_data);
0033     int (*get_lane_mbps)(void *priv_data,
0034                  const struct drm_display_mode *mode,
0035                  unsigned long mode_flags, u32 lanes, u32 format,
0036                  unsigned int *lane_mbps);
0037     int (*get_timing)(void *priv_data, unsigned int lane_mbps,
0038               struct dw_mipi_dsi_dphy_timing *timing);
0039     int (*get_esc_clk_rate)(void *priv_data, unsigned int *esc_clk_rate);
0040 };
0041
0042 struct dw_mipi_dsi_host_ops {
0043     int (*attach)(void *priv_data,
0044               struct mipi_dsi_device *dsi);
0045     int (*detach)(void *priv_data,
0046               struct mipi_dsi_device *dsi);
0047 };
0048
0049 struct dw_mipi_dsi_plat_data {
0050     void __iomem *base;
0051     unsigned int max_data_lanes;
0052
0053     enum drm_mode_status (*mode_valid)(void *priv_data,
0054                        const struct drm_display_mode *mode,
0055                        unsigned long mode_flags,
0056                        u32 lanes, u32 format);
0057
0058     const struct dw_mipi_dsi_phy_ops *phy_ops;
0059     const struct dw_mipi_dsi_host_ops *host_ops;
0060
0061     void *priv_data;
0062 };
0063
0064 struct dw_mipi_dsi *dw_mipi_dsi_probe(struct platform_device *pdev,
0065                       const struct dw_mipi_dsi_plat_data
0066                       *plat_data);
0067 void dw_mipi_dsi_remove(struct dw_mipi_dsi *dsi);
0068 int dw_mipi_dsi_bind(struct dw_mipi_dsi *dsi, struct drm_encoder *encoder);
0069 void dw_mipi_dsi_unbind(struct dw_mipi_dsi *dsi);
0070 void dw_mipi_dsi_set_slave(struct dw_mipi_dsi *dsi, struct dw_mipi_dsi *slave);
0071
0072 #endif /* __DW_MIPI_DSI__ */