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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
4  * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
5  */
6 
7 #ifndef __OMAP_DRM_DSS_H
8 #define __OMAP_DRM_DSS_H
9 
10 #include <linux/list.h>
11 #include <linux/device.h>
12 #include <linux/interrupt.h>
13 #include <video/videomode.h>
14 #include <linux/platform_data/omapdss.h>
15 #include <uapi/drm/drm_mode.h>
16 #include <drm/drm_crtc.h>
17 
18 #define DISPC_IRQ_FRAMEDONE		(1 << 0)
19 #define DISPC_IRQ_VSYNC			(1 << 1)
20 #define DISPC_IRQ_EVSYNC_EVEN		(1 << 2)
21 #define DISPC_IRQ_EVSYNC_ODD		(1 << 3)
22 #define DISPC_IRQ_ACBIAS_COUNT_STAT	(1 << 4)
23 #define DISPC_IRQ_PROG_LINE_NUM		(1 << 5)
24 #define DISPC_IRQ_GFX_FIFO_UNDERFLOW	(1 << 6)
25 #define DISPC_IRQ_GFX_END_WIN		(1 << 7)
26 #define DISPC_IRQ_PAL_GAMMA_MASK	(1 << 8)
27 #define DISPC_IRQ_OCP_ERR		(1 << 9)
28 #define DISPC_IRQ_VID1_FIFO_UNDERFLOW	(1 << 10)
29 #define DISPC_IRQ_VID1_END_WIN		(1 << 11)
30 #define DISPC_IRQ_VID2_FIFO_UNDERFLOW	(1 << 12)
31 #define DISPC_IRQ_VID2_END_WIN		(1 << 13)
32 #define DISPC_IRQ_SYNC_LOST		(1 << 14)
33 #define DISPC_IRQ_SYNC_LOST_DIGIT	(1 << 15)
34 #define DISPC_IRQ_WAKEUP		(1 << 16)
35 #define DISPC_IRQ_SYNC_LOST2		(1 << 17)
36 #define DISPC_IRQ_VSYNC2		(1 << 18)
37 #define DISPC_IRQ_VID3_END_WIN		(1 << 19)
38 #define DISPC_IRQ_VID3_FIFO_UNDERFLOW	(1 << 20)
39 #define DISPC_IRQ_ACBIAS_COUNT_STAT2	(1 << 21)
40 #define DISPC_IRQ_FRAMEDONE2		(1 << 22)
41 #define DISPC_IRQ_FRAMEDONEWB		(1 << 23)
42 #define DISPC_IRQ_FRAMEDONETV		(1 << 24)
43 #define DISPC_IRQ_WBBUFFEROVERFLOW	(1 << 25)
44 #define DISPC_IRQ_WBUNCOMPLETEERROR	(1 << 26)
45 #define DISPC_IRQ_SYNC_LOST3		(1 << 27)
46 #define DISPC_IRQ_VSYNC3		(1 << 28)
47 #define DISPC_IRQ_ACBIAS_COUNT_STAT3	(1 << 29)
48 #define DISPC_IRQ_FRAMEDONE3		(1 << 30)
49 
50 struct dss_device;
51 struct omap_drm_private;
52 struct omap_dss_device;
53 struct dispc_device;
54 struct dss_device;
55 struct dss_lcd_mgr_config;
56 struct snd_aes_iec958;
57 struct snd_cea_861_aud_if;
58 struct hdmi_avi_infoframe;
59 struct drm_connector;
60 
61 enum omap_display_type {
62 	OMAP_DISPLAY_TYPE_NONE		= 0,
63 	OMAP_DISPLAY_TYPE_DPI		= 1 << 0,
64 	OMAP_DISPLAY_TYPE_DBI		= 1 << 1,
65 	OMAP_DISPLAY_TYPE_SDI		= 1 << 2,
66 	OMAP_DISPLAY_TYPE_DSI		= 1 << 3,
67 	OMAP_DISPLAY_TYPE_VENC		= 1 << 4,
68 	OMAP_DISPLAY_TYPE_HDMI		= 1 << 5,
69 	OMAP_DISPLAY_TYPE_DVI		= 1 << 6,
70 };
71 
72 enum omap_plane_id {
73 	OMAP_DSS_GFX	= 0,
74 	OMAP_DSS_VIDEO1	= 1,
75 	OMAP_DSS_VIDEO2	= 2,
76 	OMAP_DSS_VIDEO3	= 3,
77 	OMAP_DSS_WB	= 4,
78 };
79 
80 enum omap_channel {
81 	OMAP_DSS_CHANNEL_LCD	= 0,
82 	OMAP_DSS_CHANNEL_DIGIT	= 1,
83 	OMAP_DSS_CHANNEL_LCD2	= 2,
84 	OMAP_DSS_CHANNEL_LCD3	= 3,
85 	OMAP_DSS_CHANNEL_WB	= 4,
86 };
87 
88 enum omap_color_mode {
89 	_UNUSED_,
90 };
91 
92 enum omap_dss_load_mode {
93 	OMAP_DSS_LOAD_CLUT_AND_FRAME	= 0,
94 	OMAP_DSS_LOAD_CLUT_ONLY		= 1,
95 	OMAP_DSS_LOAD_FRAME_ONLY	= 2,
96 	OMAP_DSS_LOAD_CLUT_ONCE_FRAME	= 3,
97 };
98 
99 enum omap_dss_trans_key_type {
100 	OMAP_DSS_COLOR_KEY_GFX_DST = 0,
101 	OMAP_DSS_COLOR_KEY_VID_SRC = 1,
102 };
103 
104 enum omap_dss_signal_level {
105 	OMAPDSS_SIG_ACTIVE_LOW,
106 	OMAPDSS_SIG_ACTIVE_HIGH,
107 };
108 
109 enum omap_dss_signal_edge {
110 	OMAPDSS_DRIVE_SIG_FALLING_EDGE,
111 	OMAPDSS_DRIVE_SIG_RISING_EDGE,
112 };
113 
114 enum omap_dss_venc_type {
115 	OMAP_DSS_VENC_TYPE_COMPOSITE,
116 	OMAP_DSS_VENC_TYPE_SVIDEO,
117 };
118 
119 enum omap_dss_dsi_pixel_format {
120 	OMAP_DSS_DSI_FMT_RGB888,
121 	OMAP_DSS_DSI_FMT_RGB666,
122 	OMAP_DSS_DSI_FMT_RGB666_PACKED,
123 	OMAP_DSS_DSI_FMT_RGB565,
124 };
125 
126 enum omap_dss_dsi_mode {
127 	OMAP_DSS_DSI_CMD_MODE = 0,
128 	OMAP_DSS_DSI_VIDEO_MODE,
129 };
130 
131 enum omap_display_caps {
132 	OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE	= 1 << 0,
133 	OMAP_DSS_DISPLAY_CAP_TEAR_ELIM		= 1 << 1,
134 };
135 
136 enum omap_dss_display_state {
137 	OMAP_DSS_DISPLAY_DISABLED = 0,
138 	OMAP_DSS_DISPLAY_ACTIVE,
139 };
140 
141 enum omap_dss_rotation_type {
142 	OMAP_DSS_ROT_NONE	= 0,
143 	OMAP_DSS_ROT_TILER	= 1 << 0,
144 };
145 
146 enum omap_overlay_caps {
147 	OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
148 	OMAP_DSS_OVL_CAP_GLOBAL_ALPHA = 1 << 1,
149 	OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA = 1 << 2,
150 	OMAP_DSS_OVL_CAP_ZORDER = 1 << 3,
151 	OMAP_DSS_OVL_CAP_POS = 1 << 4,
152 	OMAP_DSS_OVL_CAP_REPLICATION = 1 << 5,
153 };
154 
155 enum omap_dss_output_id {
156 	OMAP_DSS_OUTPUT_DPI	= 1 << 0,
157 	OMAP_DSS_OUTPUT_DBI	= 1 << 1,
158 	OMAP_DSS_OUTPUT_SDI	= 1 << 2,
159 	OMAP_DSS_OUTPUT_DSI1	= 1 << 3,
160 	OMAP_DSS_OUTPUT_DSI2	= 1 << 4,
161 	OMAP_DSS_OUTPUT_VENC	= 1 << 5,
162 	OMAP_DSS_OUTPUT_HDMI	= 1 << 6,
163 };
164 
165 /* DSI */
166 
167 enum omap_dss_dsi_trans_mode {
168 	/* Sync Pulses: both sync start and end packets sent */
169 	OMAP_DSS_DSI_PULSE_MODE,
170 	/* Sync Events: only sync start packets sent */
171 	OMAP_DSS_DSI_EVENT_MODE,
172 	/* Burst: only sync start packets sent, pixels are time compressed */
173 	OMAP_DSS_DSI_BURST_MODE,
174 };
175 
176 struct omap_dss_dsi_videomode_timings {
177 	unsigned long hsclk;
178 
179 	unsigned int ndl;
180 	unsigned int bitspp;
181 
182 	/* pixels */
183 	u16 hact;
184 	/* lines */
185 	u16 vact;
186 
187 	/* DSI video mode blanking data */
188 	/* Unit: byte clock cycles */
189 	u16 hss;
190 	u16 hsa;
191 	u16 hse;
192 	u16 hfp;
193 	u16 hbp;
194 	/* Unit: line clocks */
195 	u16 vsa;
196 	u16 vfp;
197 	u16 vbp;
198 
199 	/* DSI blanking modes */
200 	int blanking_mode;
201 	int hsa_blanking_mode;
202 	int hbp_blanking_mode;
203 	int hfp_blanking_mode;
204 
205 	enum omap_dss_dsi_trans_mode trans_mode;
206 
207 	bool ddr_clk_always_on;
208 	int window_sync;
209 };
210 
211 struct omap_dss_dsi_config {
212 	enum omap_dss_dsi_mode mode;
213 	enum omap_dss_dsi_pixel_format pixel_format;
214 	const struct videomode *vm;
215 
216 	unsigned long hs_clk_min, hs_clk_max;
217 	unsigned long lp_clk_min, lp_clk_max;
218 
219 	bool ddr_clk_always_on;
220 	enum omap_dss_dsi_trans_mode trans_mode;
221 };
222 
223 struct omap_dss_cpr_coefs {
224 	s16 rr, rg, rb;
225 	s16 gr, gg, gb;
226 	s16 br, bg, bb;
227 };
228 
229 struct omap_overlay_info {
230 	dma_addr_t paddr;
231 	dma_addr_t p_uv_addr;  /* for NV12 format */
232 	u16 screen_width;
233 	u16 width;
234 	u16 height;
235 	u32 fourcc;
236 	u8 rotation;
237 	enum omap_dss_rotation_type rotation_type;
238 
239 	u16 pos_x;
240 	u16 pos_y;
241 	u16 out_width;	/* if 0, out_width == width */
242 	u16 out_height;	/* if 0, out_height == height */
243 	u8 global_alpha;
244 	u8 pre_mult_alpha;
245 	u8 zorder;
246 };
247 
248 struct omap_overlay_manager_info {
249 	u32 default_color;
250 
251 	enum omap_dss_trans_key_type trans_key_type;
252 	u32 trans_key;
253 	bool trans_enabled;
254 
255 	bool partial_alpha_enabled;
256 
257 	bool cpr_enable;
258 	struct omap_dss_cpr_coefs cpr_coefs;
259 };
260 
261 /* 22 pins means 1 clk lane and 10 data lanes */
262 #define OMAP_DSS_MAX_DSI_PINS 22
263 
264 struct omap_dsi_pin_config {
265 	int num_pins;
266 	/*
267 	 * pin numbers in the following order:
268 	 * clk+, clk-
269 	 * data1+, data1-
270 	 * data2+, data2-
271 	 * ...
272 	 */
273 	int pins[OMAP_DSS_MAX_DSI_PINS];
274 };
275 
276 struct omap_dss_writeback_info {
277 	u32 paddr;
278 	u32 p_uv_addr;
279 	u16 buf_width;
280 	u16 width;
281 	u16 height;
282 	u32 fourcc;
283 	u8 rotation;
284 	enum omap_dss_rotation_type rotation_type;
285 	u8 pre_mult_alpha;
286 };
287 
288 struct omapdss_hdmi_ops {
289 	void (*lost_hotplug)(struct omap_dss_device *dssdev);
290 	int (*set_hdmi_mode)(struct omap_dss_device *dssdev, bool hdmi_mode);
291 	int (*set_infoframe)(struct omap_dss_device *dssdev,
292 		const struct hdmi_avi_infoframe *avi);
293 };
294 
295 struct omapdss_dsi_ops {
296 	void (*disable)(struct omap_dss_device *dssdev, bool disconnect_lanes,
297 			bool enter_ulps);
298 
299 	/* bus configuration */
300 	int (*set_config)(struct omap_dss_device *dssdev,
301 			const struct omap_dss_dsi_config *cfg);
302 	int (*configure_pins)(struct omap_dss_device *dssdev,
303 			const struct omap_dsi_pin_config *pin_cfg);
304 
305 	void (*enable_hs)(struct omap_dss_device *dssdev, int channel,
306 			bool enable);
307 	int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
308 
309 	int (*update)(struct omap_dss_device *dssdev, int channel,
310 			void (*callback)(int, void *), void *data);
311 
312 	void (*bus_lock)(struct omap_dss_device *dssdev);
313 	void (*bus_unlock)(struct omap_dss_device *dssdev);
314 
315 	int (*enable_video_output)(struct omap_dss_device *dssdev, int channel);
316 	void (*disable_video_output)(struct omap_dss_device *dssdev,
317 			int channel);
318 
319 	int (*request_vc)(struct omap_dss_device *dssdev, int *channel);
320 	int (*set_vc_id)(struct omap_dss_device *dssdev, int channel,
321 			int vc_id);
322 	void (*release_vc)(struct omap_dss_device *dssdev, int channel);
323 
324 	/* data transfer */
325 	int (*dcs_write)(struct omap_dss_device *dssdev, int channel,
326 			u8 *data, int len);
327 	int (*dcs_write_nosync)(struct omap_dss_device *dssdev, int channel,
328 			u8 *data, int len);
329 	int (*dcs_read)(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
330 			u8 *data, int len);
331 
332 	int (*gen_write)(struct omap_dss_device *dssdev, int channel,
333 			u8 *data, int len);
334 	int (*gen_write_nosync)(struct omap_dss_device *dssdev, int channel,
335 			u8 *data, int len);
336 	int (*gen_read)(struct omap_dss_device *dssdev, int channel,
337 			u8 *reqdata, int reqlen,
338 			u8 *data, int len);
339 
340 	int (*bta_sync)(struct omap_dss_device *dssdev, int channel);
341 
342 	int (*set_max_rx_packet_size)(struct omap_dss_device *dssdev,
343 			int channel, u16 plen);
344 };
345 
346 struct omap_dss_device_ops {
347 	int (*connect)(struct omap_dss_device *dssdev,
348 			struct omap_dss_device *dst);
349 	void (*disconnect)(struct omap_dss_device *dssdev,
350 			struct omap_dss_device *dst);
351 
352 	void (*pre_enable)(struct omap_dss_device *dssdev);
353 	void (*enable)(struct omap_dss_device *dssdev);
354 	void (*disable)(struct omap_dss_device *dssdev);
355 	void (*post_disable)(struct omap_dss_device *dssdev);
356 
357 	int (*check_timings)(struct omap_dss_device *dssdev,
358 			     struct drm_display_mode *mode);
359 	void (*set_timings)(struct omap_dss_device *dssdev,
360 			    const struct drm_display_mode *mode);
361 
362 	bool (*detect)(struct omap_dss_device *dssdev);
363 
364 	void (*register_hpd_cb)(struct omap_dss_device *dssdev,
365 				void (*cb)(void *cb_data,
366 					  enum drm_connector_status status),
367 				void *cb_data);
368 	void (*unregister_hpd_cb)(struct omap_dss_device *dssdev);
369 
370 	int (*read_edid)(struct omap_dss_device *dssdev, u8 *buf, int len);
371 
372 	int (*get_modes)(struct omap_dss_device *dssdev,
373 			 struct drm_connector *connector);
374 
375 	union {
376 		const struct omapdss_hdmi_ops hdmi;
377 		const struct omapdss_dsi_ops dsi;
378 	};
379 };
380 
381 /**
382  * enum omap_dss_device_ops_flag - Indicates which device ops are supported
383  * @OMAP_DSS_DEVICE_OP_DETECT: The device supports output connection detection
384  * @OMAP_DSS_DEVICE_OP_HPD: The device supports all hot-plug-related operations
385  * @OMAP_DSS_DEVICE_OP_EDID: The device supports reading EDID
386  * @OMAP_DSS_DEVICE_OP_MODES: The device supports reading modes
387  */
388 enum omap_dss_device_ops_flag {
389 	OMAP_DSS_DEVICE_OP_DETECT = BIT(0),
390 	OMAP_DSS_DEVICE_OP_HPD = BIT(1),
391 	OMAP_DSS_DEVICE_OP_EDID = BIT(2),
392 	OMAP_DSS_DEVICE_OP_MODES = BIT(3),
393 };
394 
395 struct omap_dss_device {
396 	struct device *dev;
397 
398 	struct module *owner;
399 
400 	struct dss_device *dss;
401 	struct omap_dss_device *next;
402 	struct drm_bridge *bridge;
403 	struct drm_panel *panel;
404 
405 	struct list_head list;
406 
407 	/*
408 	 * DSS type that this device generates (for DSS internal devices) or
409 	 * requires (for external encoders, connectors and panels). Must be a
410 	 * non-zero (different than OMAP_DISPLAY_TYPE_NONE) value.
411 	 */
412 	enum omap_display_type type;
413 
414 	/*
415 	 * True if the device is a display (panel or connector) at the end of
416 	 * the pipeline, false otherwise.
417 	 */
418 	bool display;
419 
420 	const char *name;
421 
422 	const struct omap_dss_driver *driver;
423 	const struct omap_dss_device_ops *ops;
424 	unsigned long ops_flags;
425 	u32 bus_flags;
426 
427 	enum omap_display_caps caps;
428 
429 	enum omap_dss_display_state state;
430 
431 	/* OMAP DSS output specific fields */
432 
433 	/* DISPC channel for this output */
434 	enum omap_channel dispc_channel;
435 
436 	/* output instance */
437 	enum omap_dss_output_id id;
438 
439 	/* bitmask of port numbers in DT */
440 	unsigned int of_ports;
441 };
442 
443 struct omap_dss_driver {
444 	int (*update)(struct omap_dss_device *dssdev,
445 			       u16 x, u16 y, u16 w, u16 h);
446 	int (*sync)(struct omap_dss_device *dssdev);
447 
448 	int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
449 	int (*get_te)(struct omap_dss_device *dssdev);
450 
451 	int (*memory_read)(struct omap_dss_device *dssdev,
452 			void *buf, size_t size,
453 			u16 x, u16 y, u16 w, u16 h);
454 };
455 
456 struct dss_device *omapdss_get_dss(void);
457 void omapdss_set_dss(struct dss_device *dss);
omapdss_is_initialized(void)458 static inline bool omapdss_is_initialized(void)
459 {
460 	return !!omapdss_get_dss();
461 }
462 
463 void omapdss_display_init(struct omap_dss_device *dssdev);
464 struct omap_dss_device *omapdss_display_get(struct omap_dss_device *output);
465 int omapdss_display_get_modes(struct drm_connector *connector,
466 			      const struct videomode *vm);
467 
468 void omapdss_device_register(struct omap_dss_device *dssdev);
469 void omapdss_device_unregister(struct omap_dss_device *dssdev);
470 struct omap_dss_device *omapdss_device_get(struct omap_dss_device *dssdev);
471 void omapdss_device_put(struct omap_dss_device *dssdev);
472 struct omap_dss_device *omapdss_find_device_by_node(struct device_node *node);
473 int omapdss_device_connect(struct dss_device *dss,
474 			   struct omap_dss_device *src,
475 			   struct omap_dss_device *dst);
476 void omapdss_device_disconnect(struct omap_dss_device *src,
477 			       struct omap_dss_device *dst);
478 void omapdss_device_pre_enable(struct omap_dss_device *dssdev);
479 void omapdss_device_enable(struct omap_dss_device *dssdev);
480 void omapdss_device_disable(struct omap_dss_device *dssdev);
481 void omapdss_device_post_disable(struct omap_dss_device *dssdev);
482 
483 int omap_dss_get_num_overlay_managers(void);
484 
485 int omap_dss_get_num_overlays(void);
486 
487 #define for_each_dss_output(d) \
488 	while ((d = omapdss_device_next_output(d)) != NULL)
489 struct omap_dss_device *omapdss_device_next_output(struct omap_dss_device *from);
490 int omapdss_device_init_output(struct omap_dss_device *out);
491 void omapdss_device_cleanup_output(struct omap_dss_device *out);
492 
493 typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
494 int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
495 int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
496 
497 int omapdss_compat_init(void);
498 void omapdss_compat_uninit(void);
499 
omapdss_device_is_enabled(struct omap_dss_device * dssdev)500 static inline bool omapdss_device_is_enabled(struct omap_dss_device *dssdev)
501 {
502 	return dssdev->state == OMAP_DSS_DISPLAY_ACTIVE;
503 }
504 
505 struct omap_dss_device *
506 omapdss_of_find_connected_device(struct device_node *node, unsigned int port);
507 
508 enum dss_writeback_channel {
509 	DSS_WB_LCD1_MGR =	0,
510 	DSS_WB_LCD2_MGR =	1,
511 	DSS_WB_TV_MGR =		2,
512 	DSS_WB_OVL0 =		3,
513 	DSS_WB_OVL1 =		4,
514 	DSS_WB_OVL2 =		5,
515 	DSS_WB_OVL3 =		6,
516 	DSS_WB_LCD3_MGR =	7,
517 };
518 
519 struct dss_mgr_ops {
520 	void (*start_update)(struct omap_drm_private *priv,
521 			     enum omap_channel channel);
522 	int (*enable)(struct omap_drm_private *priv,
523 		      enum omap_channel channel);
524 	void (*disable)(struct omap_drm_private *priv,
525 			enum omap_channel channel);
526 	void (*set_timings)(struct omap_drm_private *priv,
527 			    enum omap_channel channel,
528 			    const struct videomode *vm);
529 	void (*set_lcd_config)(struct omap_drm_private *priv,
530 			       enum omap_channel channel,
531 			       const struct dss_lcd_mgr_config *config);
532 	int (*register_framedone_handler)(struct omap_drm_private *priv,
533 			enum omap_channel channel,
534 			void (*handler)(void *), void *data);
535 	void (*unregister_framedone_handler)(struct omap_drm_private *priv,
536 			enum omap_channel channel,
537 			void (*handler)(void *), void *data);
538 };
539 
540 int dss_install_mgr_ops(struct dss_device *dss,
541 			const struct dss_mgr_ops *mgr_ops,
542 			struct omap_drm_private *priv);
543 void dss_uninstall_mgr_ops(struct dss_device *dss);
544 
545 void dss_mgr_set_timings(struct omap_dss_device *dssdev,
546 		const struct videomode *vm);
547 void dss_mgr_set_lcd_config(struct omap_dss_device *dssdev,
548 		const struct dss_lcd_mgr_config *config);
549 int dss_mgr_enable(struct omap_dss_device *dssdev);
550 void dss_mgr_disable(struct omap_dss_device *dssdev);
551 void dss_mgr_start_update(struct omap_dss_device *dssdev);
552 int dss_mgr_register_framedone_handler(struct omap_dss_device *dssdev,
553 		void (*handler)(void *), void *data);
554 void dss_mgr_unregister_framedone_handler(struct omap_dss_device *dssdev,
555 		void (*handler)(void *), void *data);
556 
557 /* dispc ops */
558 
559 struct dispc_ops {
560 	u32 (*read_irqstatus)(struct dispc_device *dispc);
561 	void (*clear_irqstatus)(struct dispc_device *dispc, u32 mask);
562 	void (*write_irqenable)(struct dispc_device *dispc, u32 mask);
563 
564 	int (*request_irq)(struct dispc_device *dispc, irq_handler_t handler,
565 			   void *dev_id);
566 	void (*free_irq)(struct dispc_device *dispc, void *dev_id);
567 
568 	int (*runtime_get)(struct dispc_device *dispc);
569 	void (*runtime_put)(struct dispc_device *dispc);
570 
571 	int (*get_num_ovls)(struct dispc_device *dispc);
572 	int (*get_num_mgrs)(struct dispc_device *dispc);
573 
574 	u32 (*get_memory_bandwidth_limit)(struct dispc_device *dispc);
575 
576 	void (*mgr_enable)(struct dispc_device *dispc,
577 			   enum omap_channel channel, bool enable);
578 	bool (*mgr_is_enabled)(struct dispc_device *dispc,
579 			       enum omap_channel channel);
580 	u32 (*mgr_get_vsync_irq)(struct dispc_device *dispc,
581 				 enum omap_channel channel);
582 	u32 (*mgr_get_framedone_irq)(struct dispc_device *dispc,
583 				     enum omap_channel channel);
584 	u32 (*mgr_get_sync_lost_irq)(struct dispc_device *dispc,
585 				     enum omap_channel channel);
586 	bool (*mgr_go_busy)(struct dispc_device *dispc,
587 			    enum omap_channel channel);
588 	void (*mgr_go)(struct dispc_device *dispc, enum omap_channel channel);
589 	void (*mgr_set_lcd_config)(struct dispc_device *dispc,
590 				   enum omap_channel channel,
591 				   const struct dss_lcd_mgr_config *config);
592 	int (*mgr_check_timings)(struct dispc_device *dispc,
593 				 enum omap_channel channel,
594 				 const struct videomode *vm);
595 	void (*mgr_set_timings)(struct dispc_device *dispc,
596 				enum omap_channel channel,
597 				const struct videomode *vm);
598 	void (*mgr_setup)(struct dispc_device *dispc, enum omap_channel channel,
599 			  const struct omap_overlay_manager_info *info);
600 	u32 (*mgr_gamma_size)(struct dispc_device *dispc,
601 			      enum omap_channel channel);
602 	void (*mgr_set_gamma)(struct dispc_device *dispc,
603 			      enum omap_channel channel,
604 			      const struct drm_color_lut *lut,
605 			      unsigned int length);
606 
607 	int (*ovl_enable)(struct dispc_device *dispc, enum omap_plane_id plane,
608 			  bool enable);
609 	int (*ovl_setup)(struct dispc_device *dispc, enum omap_plane_id plane,
610 			 const struct omap_overlay_info *oi,
611 			 const struct videomode *vm, bool mem_to_mem,
612 			 enum omap_channel channel);
613 
614 	const u32 *(*ovl_get_color_modes)(struct dispc_device *dispc,
615 					  enum omap_plane_id plane);
616 
617 	u32 (*wb_get_framedone_irq)(struct dispc_device *dispc);
618 	int (*wb_setup)(struct dispc_device *dispc,
619 		const struct omap_dss_writeback_info *wi,
620 		bool mem_to_mem, const struct videomode *vm,
621 		enum dss_writeback_channel channel_in);
622 	bool (*has_writeback)(struct dispc_device *dispc);
623 	bool (*wb_go_busy)(struct dispc_device *dispc);
624 	void (*wb_go)(struct dispc_device *dispc);
625 };
626 
627 struct dispc_device *dispc_get_dispc(struct dss_device *dss);
628 const struct dispc_ops *dispc_get_ops(struct dss_device *dss);
629 
630 bool omapdss_stack_is_ready(void);
631 void omapdss_gather_components(struct device *dev);
632 
633 #endif /* __OMAP_DRM_DSS_H */
634