1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
  4 */
  5
  6#ifndef __DSI_CONNECTOR_H__
  7#define __DSI_CONNECTOR_H__
  8
  9#include <linux/of_platform.h>
 10#include <linux/platform_device.h>
 11
 12#include <drm/drm_bridge.h>
 13#include <drm/drm_crtc.h>
 14#include <drm/drm_mipi_dsi.h>
 15
 16#include "msm_drv.h"
 17#include "disp/msm_disp_snapshot.h"
 18
 19#define DSI_0	0
 20#define DSI_1	1
 21#define DSI_MAX	2
 22
 23struct msm_dsi_phy_shared_timings;
 24struct msm_dsi_phy_clk_request;
 25
 26enum msm_dsi_phy_usecase {
 27	MSM_DSI_PHY_STANDALONE,
 28	MSM_DSI_PHY_MASTER,
 29	MSM_DSI_PHY_SLAVE,
 30};
 31
 32#define DSI_BUS_CLK_MAX		4
 33
 34struct msm_dsi {
 35	struct drm_device *dev;
 36	struct platform_device *pdev;
 37
 38	struct mipi_dsi_host *host;
 39	struct msm_dsi_phy *phy;
 40
 41	struct device *phy_dev;
 42	bool phy_enabled;
 43
 44	int id;
 45};
 46
 47/* dsi manager */
 48struct drm_bridge *msm_dsi_manager_bridge_init(struct msm_dsi *msm_dsi,
 49					       struct drm_encoder *encoder);
 50int msm_dsi_manager_ext_bridge_init(u8 id, struct drm_bridge *int_bridge);
 51int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
 52bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
 53int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
 54void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
 55void msm_dsi_manager_tpg_enable(void);
 56
 57/* dsi host */
 58struct msm_dsi_host;
 59int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
 60					const struct mipi_dsi_msg *msg);
 61void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
 62					const struct mipi_dsi_msg *msg);
 63int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
 64					const struct mipi_dsi_msg *msg);
 65int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
 66					const struct mipi_dsi_msg *msg);
 67void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
 68					u32 dma_base, u32 len);
 69int msm_dsi_host_enable(struct mipi_dsi_host *host);
 70int msm_dsi_host_disable(struct mipi_dsi_host *host);
 71void msm_dsi_host_enable_irq(struct mipi_dsi_host *host);
 72void msm_dsi_host_disable_irq(struct mipi_dsi_host *host);
 73int msm_dsi_host_power_on(struct mipi_dsi_host *host,
 74			struct msm_dsi_phy_shared_timings *phy_shared_timings,
 75			bool is_bonded_dsi, struct msm_dsi_phy *phy);
 76int msm_dsi_host_power_off(struct mipi_dsi_host *host);
 77int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
 78				  const struct drm_display_mode *mode);
 79enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host,
 80					    const struct drm_display_mode *mode);
 81unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host);
 82int msm_dsi_host_register(struct mipi_dsi_host *host);
 83void msm_dsi_host_unregister(struct mipi_dsi_host *host);
 84void msm_dsi_host_set_phy_mode(struct mipi_dsi_host *host,
 85			struct msm_dsi_phy *src_phy);
 86int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
 87			struct msm_dsi_phy *src_phy);
 88void msm_dsi_host_reset_phy(struct mipi_dsi_host *host);
 89void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
 90	struct msm_dsi_phy_clk_request *clk_req,
 91	bool is_bonded_dsi);
 92void msm_dsi_host_destroy(struct mipi_dsi_host *host);
 93int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
 94					struct drm_device *dev);
 95int msm_dsi_host_init(struct msm_dsi *msm_dsi);
 96int msm_dsi_runtime_suspend(struct device *dev);
 97int msm_dsi_runtime_resume(struct device *dev);
 98int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host);
 99int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host);
100int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host);
101int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host);
102void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host);
103void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host);
104unsigned long dsi_byte_clk_get_rate(struct mipi_dsi_host *host, bool is_bonded_dsi,
105				    const struct drm_display_mode *mode);
106int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size);
107int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size);
108void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host);
109void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host);
110void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host);
111void msm_dsi_tx_buf_free(struct mipi_dsi_host *mipi_host);
112int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova);
113int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova);
114int dsi_clk_init_v2(struct msm_dsi_host *msm_host);
115int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host);
116int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
117int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
118void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host);
119void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host);
120struct drm_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host);
121bool msm_dsi_host_is_wide_bus_enabled(struct mipi_dsi_host *host);
122
123/* dsi phy */
124struct msm_dsi_phy;
125struct msm_dsi_phy_shared_timings {
126	u32 clk_post;
127	u32 clk_pre;
128	bool clk_pre_inc_by_2;
129	bool byte_intf_clk_div_2;
130};
131
132struct msm_dsi_phy_clk_request {
133	unsigned long bitclk_rate;
134	unsigned long escclk_rate;
135};
136
137void msm_dsi_phy_driver_register(void);
138void msm_dsi_phy_driver_unregister(void);
139int msm_dsi_phy_enable(struct msm_dsi_phy *phy,
140			struct msm_dsi_phy_clk_request *clk_req,
141			struct msm_dsi_phy_shared_timings *shared_timings);
142void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
143void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
144			     enum msm_dsi_phy_usecase uc);
145void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy);
146int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy);
147void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy);
148bool msm_dsi_phy_set_continuous_clock(struct msm_dsi_phy *phy, bool enable);
149
150#endif /* __DSI_CONNECTOR_H__ */
151