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	/* internal dsi bridge attached to MDP interface */
 39	struct drm_bridge *bridge;
 40
 41	struct mipi_dsi_host *host;
 42	struct msm_dsi_phy *phy;
 43
 44	/*
 45	 * external_bridge connected to dsi bridge output
 46	 */
 47	struct drm_bridge *external_bridge;
 48
 49	struct device *phy_dev;
 50	bool phy_enabled;
 51
 52	/* the encoder we are hooked to (outside of dsi block) */
 53	struct drm_encoder *encoder;
 54
 55	int id;
 56};
 57
 58/* dsi manager */
 59int msm_dsi_manager_bridge_init(struct msm_dsi *msm_dsi);
 60int msm_dsi_manager_ext_bridge_init(u8 id);
 61int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
 62bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
 63int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
 64void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
 65void msm_dsi_manager_tpg_enable(void);
 66
 67/* msm dsi */
 68static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
 69{
 70	return msm_dsi->external_bridge;
 71}
 72
 73/* dsi host */
 74struct msm_dsi_host;
 75int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
 76					const struct mipi_dsi_msg *msg);
 77void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
 78					const struct mipi_dsi_msg *msg);
 79int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
 80					const struct mipi_dsi_msg *msg);
 81int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
 82					const struct mipi_dsi_msg *msg);
 83void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
 84					u32 dma_base, u32 len);
 85int msm_dsi_host_enable(struct mipi_dsi_host *host);
 86int msm_dsi_host_disable(struct mipi_dsi_host *host);
 87void msm_dsi_host_enable_irq(struct mipi_dsi_host *host);
 88void msm_dsi_host_disable_irq(struct mipi_dsi_host *host);
 89int msm_dsi_host_power_on(struct mipi_dsi_host *host,
 90			struct msm_dsi_phy_shared_timings *phy_shared_timings,
 91			bool is_bonded_dsi, struct msm_dsi_phy *phy);
 92int msm_dsi_host_power_off(struct mipi_dsi_host *host);
 93int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
 94				  const struct drm_display_mode *mode);
 95enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host,
 96					    const struct drm_display_mode *mode);
 97unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host);
 98int msm_dsi_host_register(struct mipi_dsi_host *host);
 99void msm_dsi_host_unregister(struct mipi_dsi_host *host);
100void msm_dsi_host_set_phy_mode(struct mipi_dsi_host *host,
101			struct msm_dsi_phy *src_phy);
102int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
103			struct msm_dsi_phy *src_phy);
104void msm_dsi_host_reset_phy(struct mipi_dsi_host *host);
105void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
106	struct msm_dsi_phy_clk_request *clk_req,
107	bool is_bonded_dsi);
108void msm_dsi_host_destroy(struct mipi_dsi_host *host);
109int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
110					struct drm_device *dev);
111int msm_dsi_host_init(struct msm_dsi *msm_dsi);
112int msm_dsi_runtime_suspend(struct device *dev);
113int msm_dsi_runtime_resume(struct device *dev);
114int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host);
115int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host);
116int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host);
117int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host);
118void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host);
119void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host);
120unsigned long dsi_byte_clk_get_rate(struct mipi_dsi_host *host, bool is_bonded_dsi,
121				    const struct drm_display_mode *mode);
122int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size);
123int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size);
124void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host);
125void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host);
126void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host);
127void msm_dsi_tx_buf_free(struct mipi_dsi_host *mipi_host);
128int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova);
129int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova);
130int dsi_clk_init_v2(struct msm_dsi_host *msm_host);
131int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host);
132int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
133int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
134void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host);
135void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host);
136struct drm_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host);
137bool msm_dsi_host_is_wide_bus_enabled(struct mipi_dsi_host *host);
138
139/* dsi phy */
140struct msm_dsi_phy;
141struct msm_dsi_phy_shared_timings {
142	u32 clk_post;
143	u32 clk_pre;
144	bool clk_pre_inc_by_2;
145	bool byte_intf_clk_div_2;
146};
147
148struct msm_dsi_phy_clk_request {
149	unsigned long bitclk_rate;
150	unsigned long escclk_rate;
151};
152
153void msm_dsi_phy_driver_register(void);
154void msm_dsi_phy_driver_unregister(void);
155int msm_dsi_phy_enable(struct msm_dsi_phy *phy,
156			struct msm_dsi_phy_clk_request *clk_req,
157			struct msm_dsi_phy_shared_timings *shared_timings);
158void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
159void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
160			     enum msm_dsi_phy_usecase uc);
161void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy);
162int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy);
163void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy);
164bool msm_dsi_phy_set_continuous_clock(struct msm_dsi_phy *phy, bool enable);
165
166#endif /* __DSI_CONNECTOR_H__ */
167