1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * Copyright (c) 2015 MediaTek Inc.
  4 */
  5
  6#ifndef MTK_DRM_DDP_COMP_H
  7#define MTK_DRM_DDP_COMP_H
  8
  9#include <linux/io.h>
 10
 11struct device;
 12struct device_node;
 13struct drm_crtc;
 14struct drm_device;
 15struct mtk_plane_state;
 16struct drm_crtc_state;
 17
 18enum mtk_ddp_comp_type {
 19	MTK_DISP_OVL,
 20	MTK_DISP_RDMA,
 21	MTK_DISP_WDMA,
 22	MTK_DISP_COLOR,
 23	MTK_DISP_AAL,
 24	MTK_DISP_GAMMA,
 25	MTK_DISP_UFOE,
 26	MTK_DSI,
 27	MTK_DPI,
 28	MTK_DISP_PWM,
 29	MTK_DISP_MUTEX,
 30	MTK_DISP_OD,
 31	MTK_DISP_BLS,
 32	MTK_DDP_COMP_TYPE_MAX,
 33};
 34
 35enum mtk_ddp_comp_id {
 36	DDP_COMPONENT_AAL0,
 37	DDP_COMPONENT_AAL1,
 38	DDP_COMPONENT_BLS,
 39	DDP_COMPONENT_COLOR0,
 40	DDP_COMPONENT_COLOR1,
 41	DDP_COMPONENT_DPI0,
 42	DDP_COMPONENT_DPI1,
 43	DDP_COMPONENT_DSI0,
 44	DDP_COMPONENT_DSI1,
 45	DDP_COMPONENT_DSI2,
 46	DDP_COMPONENT_DSI3,
 47	DDP_COMPONENT_GAMMA,
 48	DDP_COMPONENT_OD0,
 49	DDP_COMPONENT_OD1,
 50	DDP_COMPONENT_OVL0,
 51	DDP_COMPONENT_OVL1,
 52	DDP_COMPONENT_PWM0,
 53	DDP_COMPONENT_PWM1,
 54	DDP_COMPONENT_PWM2,
 55	DDP_COMPONENT_RDMA0,
 56	DDP_COMPONENT_RDMA1,
 57	DDP_COMPONENT_RDMA2,
 58	DDP_COMPONENT_UFOE,
 59	DDP_COMPONENT_WDMA0,
 60	DDP_COMPONENT_WDMA1,
 61	DDP_COMPONENT_ID_MAX,
 62};
 63
 64struct mtk_ddp_comp;
 65
 66struct mtk_ddp_comp_funcs {
 67	void (*config)(struct mtk_ddp_comp *comp, unsigned int w,
 68		       unsigned int h, unsigned int vrefresh, unsigned int bpc);
 69	void (*start)(struct mtk_ddp_comp *comp);
 70	void (*stop)(struct mtk_ddp_comp *comp);
 71	void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
 72	void (*disable_vblank)(struct mtk_ddp_comp *comp);
 73	unsigned int (*layer_nr)(struct mtk_ddp_comp *comp);
 74	void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx);
 75	void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx);
 76	void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
 77			     struct mtk_plane_state *state);
 78	void (*gamma_set)(struct mtk_ddp_comp *comp,
 79			  struct drm_crtc_state *state);
 80};
 81
 82struct mtk_ddp_comp {
 83	struct clk *clk;
 84	void __iomem *regs;
 85	int irq;
 86	struct device *larb_dev;
 87	enum mtk_ddp_comp_id id;
 88	const struct mtk_ddp_comp_funcs *funcs;
 89};
 90
 91static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
 92				       unsigned int w, unsigned int h,
 93				       unsigned int vrefresh, unsigned int bpc)
 94{
 95	if (comp->funcs && comp->funcs->config)
 96		comp->funcs->config(comp, w, h, vrefresh, bpc);
 97}
 98
 99static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
100{
101	if (comp->funcs && comp->funcs->start)
102		comp->funcs->start(comp);
103}
104
105static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
106{
107	if (comp->funcs && comp->funcs->stop)
108		comp->funcs->stop(comp);
109}
110
111static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp,
112					      struct drm_crtc *crtc)
113{
114	if (comp->funcs && comp->funcs->enable_vblank)
115		comp->funcs->enable_vblank(comp, crtc);
116}
117
118static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
119{
120	if (comp->funcs && comp->funcs->disable_vblank)
121		comp->funcs->disable_vblank(comp);
122}
123
124static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
125{
126	if (comp->funcs && comp->funcs->layer_nr)
127		return comp->funcs->layer_nr(comp);
128
129	return 0;
130}
131
132static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
133					 unsigned int idx)
134{
135	if (comp->funcs && comp->funcs->layer_on)
136		comp->funcs->layer_on(comp, idx);
137}
138
139static inline void mtk_ddp_comp_layer_off(struct mtk_ddp_comp *comp,
140					  unsigned int idx)
141{
142	if (comp->funcs && comp->funcs->layer_off)
143		comp->funcs->layer_off(comp, idx);
144}
145
146static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
147					     unsigned int idx,
148					     struct mtk_plane_state *state)
149{
150	if (comp->funcs && comp->funcs->layer_config)
151		comp->funcs->layer_config(comp, idx, state);
152}
153
154static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
155				     struct drm_crtc_state *state)
156{
157	if (comp->funcs && comp->funcs->gamma_set)
158		comp->funcs->gamma_set(comp, state);
159}
160
161int mtk_ddp_comp_get_id(struct device_node *node,
162			enum mtk_ddp_comp_type comp_type);
163int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
164		      struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
165		      const struct mtk_ddp_comp_funcs *funcs);
166int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
167void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
168void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
169		    unsigned int CFG);
170
171#endif /* MTK_DRM_DDP_COMP_H */