1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * MIPI DSI Bus
4 *
5 * Copyright (C) 2012-2013, Samsung Electronics, Co., Ltd.
6 * Andrzej Hajda <a.hajda@samsung.com>
7 */
8
9#ifndef __DRM_MIPI_DSI_H__
10#define __DRM_MIPI_DSI_H__
11
12#include <linux/device.h>
13#include <linux/delay.h>
14
15struct mipi_dsi_host;
16struct mipi_dsi_device;
17struct drm_dsc_picture_parameter_set;
18
19/* request ACK from peripheral */
20#define MIPI_DSI_MSG_REQ_ACK BIT(0)
21/* use Low Power Mode to transmit message */
22#define MIPI_DSI_MSG_USE_LPM BIT(1)
23
24/**
25 * struct mipi_dsi_msg - read/write DSI buffer
26 * @channel: virtual channel id
27 * @type: payload data type
28 * @flags: flags controlling this message transmission
29 * @tx_len: length of @tx_buf
30 * @tx_buf: data to be written
31 * @rx_len: length of @rx_buf
32 * @rx_buf: data to be read, or NULL
33 */
34struct mipi_dsi_msg {
35 u8 channel;
36 u8 type;
37 u16 flags;
38
39 size_t tx_len;
40 const void *tx_buf;
41
42 size_t rx_len;
43 void *rx_buf;
44};
45
46bool mipi_dsi_packet_format_is_short(u8 type);
47bool mipi_dsi_packet_format_is_long(u8 type);
48
49/**
50 * struct mipi_dsi_packet - represents a MIPI DSI packet in protocol format
51 * @size: size (in bytes) of the packet
52 * @header: the four bytes that make up the header (Data ID, Word Count or
53 * Packet Data, and ECC)
54 * @payload_length: number of bytes in the payload
55 * @payload: a pointer to a buffer containing the payload, if any
56 */
57struct mipi_dsi_packet {
58 size_t size;
59 u8 header[4];
60 size_t payload_length;
61 const u8 *payload;
62};
63
64int mipi_dsi_create_packet(struct mipi_dsi_packet *packet,
65 const struct mipi_dsi_msg *msg);
66
67/**
68 * struct mipi_dsi_host_ops - DSI bus operations
69 * @attach: attach DSI device to DSI host
70 * @detach: detach DSI device from DSI host
71 * @transfer: transmit a DSI packet
72 *
73 * DSI packets transmitted by .transfer() are passed in as mipi_dsi_msg
74 * structures. This structure contains information about the type of packet
75 * being transmitted as well as the transmit and receive buffers. When an
76 * error is encountered during transmission, this function will return a
77 * negative error code. On success it shall return the number of bytes
78 * transmitted for write packets or the number of bytes received for read
79 * packets.
80 *
81 * Note that typically DSI packet transmission is atomic, so the .transfer()
82 * function will seldomly return anything other than the number of bytes
83 * contained in the transmit buffer on success.
84 *
85 * Also note that those callbacks can be called no matter the state the
86 * host is in. Drivers that need the underlying device to be powered to
87 * perform these operations will first need to make sure it's been
88 * properly enabled.
89 */
90struct mipi_dsi_host_ops {
91 int (*attach)(struct mipi_dsi_host *host,
92 struct mipi_dsi_device *dsi);
93 int (*detach)(struct mipi_dsi_host *host,
94 struct mipi_dsi_device *dsi);
95 ssize_t (*transfer)(struct mipi_dsi_host *host,
96 const struct mipi_dsi_msg *msg);
97};
98
99/**
100 * struct mipi_dsi_host - DSI host device
101 * @dev: driver model device node for this DSI host
102 * @ops: DSI host operations
103 * @list: list management
104 */
105struct mipi_dsi_host {
106 struct device *dev;
107 const struct mipi_dsi_host_ops *ops;
108 struct list_head list;
109};
110
111int mipi_dsi_host_register(struct mipi_dsi_host *host);
112void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
113struct mipi_dsi_host *of_find_mipi_dsi_host_by_node(struct device_node *node);
114
115/* DSI mode flags */
116
117/* video mode */
118#define MIPI_DSI_MODE_VIDEO BIT(0)
119/* video burst mode */
120#define MIPI_DSI_MODE_VIDEO_BURST BIT(1)
121/* video pulse mode */
122#define MIPI_DSI_MODE_VIDEO_SYNC_PULSE BIT(2)
123/* enable auto vertical count mode */
124#define MIPI_DSI_MODE_VIDEO_AUTO_VERT BIT(3)
125/* enable hsync-end packets in vsync-pulse and v-porch area */
126#define MIPI_DSI_MODE_VIDEO_HSE BIT(4)
127/* disable hfront-porch area */
128#define MIPI_DSI_MODE_VIDEO_NO_HFP BIT(5)
129/* disable hback-porch area */
130#define MIPI_DSI_MODE_VIDEO_NO_HBP BIT(6)
131/* disable hsync-active area */
132#define MIPI_DSI_MODE_VIDEO_NO_HSA BIT(7)
133/* disable EoT packets in HS mode */
134#define MIPI_DSI_MODE_NO_EOT_PACKET BIT(9)
135/* device supports non-continuous clock behavior (DSI spec 5.6.1) */
136#define MIPI_DSI_CLOCK_NON_CONTINUOUS BIT(10)
137/* transmit data in low power */
138#define MIPI_DSI_MODE_LPM BIT(11)
139/* transmit data ending at the same time for all lanes within one hsync */
140#define MIPI_DSI_HS_PKT_END_ALIGNED BIT(12)
141
142enum mipi_dsi_pixel_format {
143 MIPI_DSI_FMT_RGB888,
144 MIPI_DSI_FMT_RGB666,
145 MIPI_DSI_FMT_RGB666_PACKED,
146 MIPI_DSI_FMT_RGB565,
147};
148
149#define DSI_DEV_NAME_SIZE 20
150
151/**
152 * struct mipi_dsi_device_info - template for creating a mipi_dsi_device
153 * @type: DSI peripheral chip type
154 * @channel: DSI virtual channel assigned to peripheral
155 * @node: pointer to OF device node or NULL
156 *
157 * This is populated and passed to mipi_dsi_device_new to create a new
158 * DSI device
159 */
160struct mipi_dsi_device_info {
161 char type[DSI_DEV_NAME_SIZE];
162 u32 channel;
163 struct device_node *node;
164};
165
166/**
167 * struct mipi_dsi_device - DSI peripheral device
168 * @host: DSI host for this peripheral
169 * @dev: driver model device node for this peripheral
170 * @attached: the DSI device has been successfully attached
171 * @name: DSI peripheral chip type
172 * @channel: virtual channel assigned to the peripheral
173 * @format: pixel format for video mode
174 * @lanes: number of active data lanes
175 * @mode_flags: DSI operation mode related flags
176 * @hs_rate: maximum lane frequency for high speed mode in hertz, this should
177 * be set to the real limits of the hardware, zero is only accepted for
178 * legacy drivers
179 * @lp_rate: maximum lane frequency for low power mode in hertz, this should
180 * be set to the real limits of the hardware, zero is only accepted for
181 * legacy drivers
182 * @dsc: panel/bridge DSC pps payload to be sent
183 */
184struct mipi_dsi_device {
185 struct mipi_dsi_host *host;
186 struct device dev;
187 bool attached;
188
189 char name[DSI_DEV_NAME_SIZE];
190 unsigned int channel;
191 unsigned int lanes;
192 enum mipi_dsi_pixel_format format;
193 unsigned long mode_flags;
194 unsigned long hs_rate;
195 unsigned long lp_rate;
196 struct drm_dsc_config *dsc;
197};
198
199/**
200 * struct mipi_dsi_multi_context - Context to call multiple MIPI DSI funcs in a row
201 */
202struct mipi_dsi_multi_context {
203 /**
204 * @dsi: Pointer to the MIPI DSI device
205 */
206 struct mipi_dsi_device *dsi;
207
208 /**
209 * @accum_err: Storage for the accumulated error over the multiple calls
210 *
211 * Init to 0. If a function encounters an error then the error code
212 * will be stored here. If you call a function and this points to a
213 * non-zero value then the function will be a noop. This allows calling
214 * a function many times in a row and just checking the error at the
215 * end to see if any of them failed.
216 */
217 int accum_err;
218};
219
220#define MIPI_DSI_MODULE_PREFIX "mipi-dsi:"
221
222#define to_mipi_dsi_device(__dev) container_of_const(__dev, struct mipi_dsi_device, dev)
223
224extern const struct bus_type mipi_dsi_bus_type;
225#define dev_is_mipi_dsi(dev) ((dev)->bus == &mipi_dsi_bus_type)
226
227/**
228 * mipi_dsi_pixel_format_to_bpp - obtain the number of bits per pixel for any
229 * given pixel format defined by the MIPI DSI
230 * specification
231 * @fmt: MIPI DSI pixel format
232 *
233 * Returns: The number of bits per pixel of the given pixel format.
234 */
235static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt)
236{
237 switch (fmt) {
238 case MIPI_DSI_FMT_RGB888:
239 case MIPI_DSI_FMT_RGB666:
240 return 24;
241
242 case MIPI_DSI_FMT_RGB666_PACKED:
243 return 18;
244
245 case MIPI_DSI_FMT_RGB565:
246 return 16;
247 }
248
249 return -EINVAL;
250}
251
252enum mipi_dsi_compression_algo {
253 MIPI_DSI_COMPRESSION_DSC = 0,
254 MIPI_DSI_COMPRESSION_VENDOR = 3,
255 /* other two values are reserved, DSI 1.3 */
256};
257
258struct mipi_dsi_device *
259mipi_dsi_device_register_full(struct mipi_dsi_host *host,
260 const struct mipi_dsi_device_info *info);
261void mipi_dsi_device_unregister(struct mipi_dsi_device *dsi);
262struct mipi_dsi_device *
263devm_mipi_dsi_device_register_full(struct device *dev, struct mipi_dsi_host *host,
264 const struct mipi_dsi_device_info *info);
265struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np);
266int mipi_dsi_attach(struct mipi_dsi_device *dsi);
267int mipi_dsi_detach(struct mipi_dsi_device *dsi);
268int devm_mipi_dsi_attach(struct device *dev, struct mipi_dsi_device *dsi);
269int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi);
270int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi);
271int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
272 u16 value);
273int mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable);
274int mipi_dsi_compression_mode_ext(struct mipi_dsi_device *dsi, bool enable,
275 enum mipi_dsi_compression_algo algo,
276 unsigned int pps_selector);
277int mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi,
278 const struct drm_dsc_picture_parameter_set *pps);
279
280void mipi_dsi_compression_mode_ext_multi(struct mipi_dsi_multi_context *ctx,
281 bool enable,
282 enum mipi_dsi_compression_algo algo,
283 unsigned int pps_selector);
284void mipi_dsi_compression_mode_multi(struct mipi_dsi_multi_context *ctx,
285 bool enable);
286void mipi_dsi_picture_parameter_set_multi(struct mipi_dsi_multi_context *ctx,
287 const struct drm_dsc_picture_parameter_set *pps);
288
289ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload,
290 size_t size);
291void mipi_dsi_generic_write_multi(struct mipi_dsi_multi_context *ctx,
292 const void *payload, size_t size);
293void mipi_dsi_dual_generic_write_multi(struct mipi_dsi_multi_context *ctx,
294 struct mipi_dsi_device *dsi1,
295 struct mipi_dsi_device *dsi2,
296 const void *payload, size_t size);
297ssize_t mipi_dsi_generic_read(struct mipi_dsi_device *dsi, const void *params,
298 size_t num_params, void *data, size_t size);
299u32 drm_mipi_dsi_get_input_bus_fmt(enum mipi_dsi_pixel_format dsi_format);
300
301#define mipi_dsi_msleep(ctx, delay) \
302 do { \
303 if (!(ctx)->accum_err) \
304 msleep(delay); \
305 } while (0)
306
307#define mipi_dsi_usleep_range(ctx, min, max) \
308 do { \
309 if (!(ctx)->accum_err) \
310 usleep_range(min, max); \
311 } while (0)
312
313/**
314 * enum mipi_dsi_dcs_tear_mode - Tearing Effect Output Line mode
315 * @MIPI_DSI_DCS_TEAR_MODE_VBLANK: the TE output line consists of V-Blanking
316 * information only
317 * @MIPI_DSI_DCS_TEAR_MODE_VHBLANK : the TE output line consists of both
318 * V-Blanking and H-Blanking information
319 */
320enum mipi_dsi_dcs_tear_mode {
321 MIPI_DSI_DCS_TEAR_MODE_VBLANK,
322 MIPI_DSI_DCS_TEAR_MODE_VHBLANK,
323};
324
325#define MIPI_DSI_DCS_POWER_MODE_DISPLAY (1 << 2)
326#define MIPI_DSI_DCS_POWER_MODE_NORMAL (1 << 3)
327#define MIPI_DSI_DCS_POWER_MODE_SLEEP (1 << 4)
328#define MIPI_DSI_DCS_POWER_MODE_PARTIAL (1 << 5)
329#define MIPI_DSI_DCS_POWER_MODE_IDLE (1 << 6)
330
331ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
332 const void *data, size_t len);
333int mipi_dsi_dcs_write_buffer_chatty(struct mipi_dsi_device *dsi,
334 const void *data, size_t len);
335void mipi_dsi_dcs_write_buffer_multi(struct mipi_dsi_multi_context *ctx,
336 const void *data, size_t len);
337void mipi_dsi_dual_dcs_write_buffer_multi(struct mipi_dsi_multi_context *ctx,
338 struct mipi_dsi_device *dsi1,
339 struct mipi_dsi_device *dsi2,
340 const void *data, size_t len);
341ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
342 const void *data, size_t len);
343ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
344 size_t len);
345void mipi_dsi_dcs_read_multi(struct mipi_dsi_multi_context *ctx, u8 cmd,
346 void *data, size_t len);
347int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
348int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
349int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode);
350int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format);
351int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
352int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
353int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
354int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi);
355int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
356 u16 end);
357int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
358 u16 end);
359int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
360 enum mipi_dsi_dcs_tear_mode mode);
361int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format);
362int mipi_dsi_dcs_set_tear_scanline(struct mipi_dsi_device *dsi, u16 scanline);
363int mipi_dsi_dcs_set_display_brightness(struct mipi_dsi_device *dsi,
364 u16 brightness);
365int mipi_dsi_dcs_get_display_brightness(struct mipi_dsi_device *dsi,
366 u16 *brightness);
367int mipi_dsi_dcs_set_display_brightness_large(struct mipi_dsi_device *dsi,
368 u16 brightness);
369int mipi_dsi_dcs_get_display_brightness_large(struct mipi_dsi_device *dsi,
370 u16 *brightness);
371
372void mipi_dsi_dcs_nop_multi(struct mipi_dsi_multi_context *ctx);
373void mipi_dsi_dcs_enter_sleep_mode_multi(struct mipi_dsi_multi_context *ctx);
374void mipi_dsi_dcs_exit_sleep_mode_multi(struct mipi_dsi_multi_context *ctx);
375void mipi_dsi_dcs_set_display_off_multi(struct mipi_dsi_multi_context *ctx);
376void mipi_dsi_dcs_set_display_on_multi(struct mipi_dsi_multi_context *ctx);
377void mipi_dsi_dcs_set_tear_on_multi(struct mipi_dsi_multi_context *ctx,
378 enum mipi_dsi_dcs_tear_mode mode);
379void mipi_dsi_turn_on_peripheral_multi(struct mipi_dsi_multi_context *ctx);
380void mipi_dsi_dcs_soft_reset_multi(struct mipi_dsi_multi_context *ctx);
381void mipi_dsi_dcs_set_display_brightness_multi(struct mipi_dsi_multi_context *ctx,
382 u16 brightness);
383void mipi_dsi_dcs_set_pixel_format_multi(struct mipi_dsi_multi_context *ctx,
384 u8 format);
385void mipi_dsi_dcs_set_column_address_multi(struct mipi_dsi_multi_context *ctx,
386 u16 start, u16 end);
387void mipi_dsi_dcs_set_page_address_multi(struct mipi_dsi_multi_context *ctx,
388 u16 start, u16 end);
389void mipi_dsi_dcs_set_tear_scanline_multi(struct mipi_dsi_multi_context *ctx,
390 u16 scanline);
391void mipi_dsi_dcs_set_tear_off_multi(struct mipi_dsi_multi_context *ctx);
392
393/**
394 * mipi_dsi_generic_write_seq_multi - transmit data using a generic write packet
395 *
396 * This macro will print errors for you and error handling is optimized for
397 * callers that call this multiple times in a row.
398 *
399 * @ctx: Context for multiple DSI transactions
400 * @seq: buffer containing the payload
401 */
402#define mipi_dsi_generic_write_seq_multi(ctx, seq...) \
403 do { \
404 static const u8 d[] = { seq }; \
405 mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d)); \
406 } while (0)
407
408/**
409 * mipi_dsi_generic_write_var_seq_multi - transmit non-constant data using a
410 * generic write packet
411 *
412 * This macro will print errors for you and error handling is optimized for
413 * callers that call this multiple times in a row.
414 *
415 * @ctx: Context for multiple DSI transactions
416 * @seq: buffer containing the payload
417 */
418#define mipi_dsi_generic_write_var_seq_multi(ctx, seq...) \
419 do { \
420 const u8 d[] = { seq }; \
421 mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d)); \
422 } while (0)
423
424/**
425 * mipi_dsi_dcs_write_seq_multi - transmit a DCS command with payload
426 *
427 * This macro will print errors for you and error handling is optimized for
428 * callers that call this multiple times in a row.
429 *
430 * @ctx: Context for multiple DSI transactions
431 * @cmd: Command
432 * @seq: buffer containing data to be transmitted
433 */
434#define mipi_dsi_dcs_write_seq_multi(ctx, cmd, seq...) \
435 do { \
436 static const u8 d[] = { cmd, seq }; \
437 mipi_dsi_dcs_write_buffer_multi(ctx, d, ARRAY_SIZE(d)); \
438 } while (0)
439
440/**
441 * mipi_dsi_dcs_write_var_seq_multi - transmit a DCS command with non-constant
442 * payload
443 *
444 * This macro will print errors for you and error handling is optimized for
445 * callers that call this multiple times in a row.
446 *
447 * @ctx: Context for multiple DSI transactions
448 * @cmd: Command
449 * @seq: buffer containing data to be transmitted
450 */
451#define mipi_dsi_dcs_write_var_seq_multi(ctx, cmd, seq...) \
452 do { \
453 const u8 d[] = { cmd, seq }; \
454 mipi_dsi_dcs_write_buffer_multi(ctx, d, ARRAY_SIZE(d)); \
455 } while (0)
456
457/**
458 * mipi_dsi_dual - send the same MIPI DSI command to two interfaces
459 *
460 * This macro will send the specified MIPI DSI command twice, once per each of
461 * the two interfaces supplied. This is useful for reducing duplication of code
462 * in panel drivers which use two parallel serial interfaces.
463 *
464 * Note that the _func parameter cannot accept a macro such as
465 * mipi_dsi_generic_write_multi() or mipi_dsi_dcs_write_buffer_multi(). See
466 * mipi_dsi_dual_generic_write_multi() and
467 * mipi_dsi_dual_dcs_write_buffer_multi() instead.
468 *
469 * WARNING: This macro reuses the _func argument and the optional trailing
470 * arguments twice each, which may cause unintended side effects. For example,
471 * adding the postfix increment ++ operator to one of the arguments to be
472 * passed to _func will cause the variable to be incremented twice instead of
473 * once and the variable will be its original value + 1 when sent to _dsi2.
474 *
475 * @_func: MIPI DSI function to pass context and arguments into
476 * @_ctx: Context for multiple DSI transactions
477 * @_dsi1: First DSI interface to act as recipient of the MIPI DSI command
478 * @_dsi2: Second DSI interface to act as recipient of the MIPI DSI command
479 * @...: Arguments to pass to MIPI DSI function or macro
480 */
481
482#define mipi_dsi_dual(_func, _ctx, _dsi1, _dsi2, ...) \
483 do { \
484 struct mipi_dsi_multi_context *_ctxcpy = (_ctx); \
485 _ctxcpy->dsi = (_dsi1); \
486 (_func)(_ctxcpy, ##__VA_ARGS__); \
487 _ctxcpy->dsi = (_dsi2); \
488 (_func)(_ctxcpy, ##__VA_ARGS__); \
489 } while (0)
490
491/**
492 * mipi_dsi_dual_generic_write_seq_multi - transmit data using a generic write
493 * packet to two dsi interfaces, one after the other
494 *
495 * This macro will send the specified generic packet twice, once per each of
496 * the two interfaces supplied. This is useful for reducing duplication of code
497 * in panel drivers which use two parallel serial interfaces.
498 *
499 * Note that if an error occurs while transmitting the packet to the first DSI
500 * interface, the packet will not be sent to the second DSI interface.
501 *
502 * This macro will print errors for you and error handling is optimized for
503 * callers that call this multiple times in a row.
504 *
505 * @_ctx: Context for multiple DSI transactions
506 * @_dsi1: First DSI interface to act as recipient of packet
507 * @_dsi2: Second DSI interface to act as recipient of packet
508 * @_seq: buffer containing the payload
509 */
510#define mipi_dsi_dual_generic_write_seq_multi(_ctx, _dsi1, _dsi2, _seq...) \
511 do { \
512 static const u8 d[] = { _seq }; \
513 mipi_dsi_dual_generic_write_multi(_ctx, _dsi1, _dsi2, d, \
514 ARRAY_SIZE(d)); \
515 } while (0)
516
517/**
518 * mipi_dsi_dual_dcs_write_seq_multi - transmit a DCS command with payload to
519 * two dsi interfaces, one after the other
520 *
521 * This macro will send the specified DCS command with payload twice, once per
522 * each of the two interfaces supplied. This is useful for reducing duplication
523 * of code in panel drivers which use two parallel serial interfaces.
524 *
525 * Note that if an error occurs while transmitting the payload to the first DSI
526 * interface, the payload will not be sent to the second DSI interface.
527 *
528 * This macro will print errors for you and error handling is optimized for
529 * callers that call this multiple times in a row.
530 *
531 * @_ctx: Context for multiple DSI transactions
532 * @_dsi1: First DSI interface to act as recipient of packet
533 * @_dsi2: Second DSI interface to act as recipient of packet
534 * @_cmd: Command
535 * @_seq: buffer containing the payload
536 */
537#define mipi_dsi_dual_dcs_write_seq_multi(_ctx, _dsi1, _dsi2, _cmd, _seq...) \
538 do { \
539 static const u8 d[] = { _cmd, _seq }; \
540 mipi_dsi_dual_dcs_write_buffer_multi(_ctx, _dsi1, _dsi2, d, \
541 ARRAY_SIZE(d)); \
542 } while (0)
543
544/**
545 * struct mipi_dsi_driver - DSI driver
546 * @driver: device driver model driver
547 * @probe: callback for device binding
548 * @remove: callback for device unbinding
549 * @shutdown: called at shutdown time to quiesce the device
550 */
551struct mipi_dsi_driver {
552 struct device_driver driver;
553 int(*probe)(struct mipi_dsi_device *dsi);
554 void (*remove)(struct mipi_dsi_device *dsi);
555 void (*shutdown)(struct mipi_dsi_device *dsi);
556};
557
558static inline struct mipi_dsi_driver *
559to_mipi_dsi_driver(struct device_driver *driver)
560{
561 return container_of(driver, struct mipi_dsi_driver, driver);
562}
563
564static inline void *mipi_dsi_get_drvdata(const struct mipi_dsi_device *dsi)
565{
566 return dev_get_drvdata(dev: &dsi->dev);
567}
568
569static inline void mipi_dsi_set_drvdata(struct mipi_dsi_device *dsi, void *data)
570{
571 dev_set_drvdata(dev: &dsi->dev, data);
572}
573
574int mipi_dsi_driver_register_full(struct mipi_dsi_driver *driver,
575 struct module *owner);
576void mipi_dsi_driver_unregister(struct mipi_dsi_driver *driver);
577
578#define mipi_dsi_driver_register(driver) \
579 mipi_dsi_driver_register_full(driver, THIS_MODULE)
580
581#define module_mipi_dsi_driver(__mipi_dsi_driver) \
582 module_driver(__mipi_dsi_driver, mipi_dsi_driver_register, \
583 mipi_dsi_driver_unregister)
584
585#endif /* __DRM_MIPI_DSI__ */
586