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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 MIPI_DSI_FMT_RGB101010,
148};
149
150#define DSI_DEV_NAME_SIZE 20
151
152/**
153 * struct mipi_dsi_device_info - template for creating a mipi_dsi_device
154 * @type: DSI peripheral chip type
155 * @channel: DSI virtual channel assigned to peripheral
156 * @node: pointer to OF device node or NULL
157 *
158 * This is populated and passed to mipi_dsi_device_new to create a new
159 * DSI device
160 */
161struct mipi_dsi_device_info {
162 char type[DSI_DEV_NAME_SIZE];
163 u32 channel;
164 struct device_node *node;
165};
166
167/**
168 * struct mipi_dsi_device - DSI peripheral device
169 * @host: DSI host for this peripheral
170 * @dev: driver model device node for this peripheral
171 * @attached: the DSI device has been successfully attached
172 * @name: DSI peripheral chip type
173 * @channel: virtual channel assigned to the peripheral
174 * @format: pixel format for video mode
175 * @lanes: number of active data lanes
176 * @mode_flags: DSI operation mode related flags
177 * @hs_rate: maximum lane frequency for high speed mode in hertz, this should
178 * be set to the real limits of the hardware, zero is only accepted for
179 * legacy drivers
180 * @lp_rate: maximum lane frequency for low power mode in hertz, this should
181 * be set to the real limits of the hardware, zero is only accepted for
182 * legacy drivers
183 * @dsc: panel/bridge DSC pps payload to be sent
184 */
185struct mipi_dsi_device {
186 struct mipi_dsi_host *host;
187 struct device dev;
188 bool attached;
189
190 char name[DSI_DEV_NAME_SIZE];
191 unsigned int channel;
192 unsigned int lanes;
193 enum mipi_dsi_pixel_format format;
194 unsigned long mode_flags;
195 unsigned long hs_rate;
196 unsigned long lp_rate;
197 struct drm_dsc_config *dsc;
198};
199
200/**
201 * struct mipi_dsi_multi_context - Context to call multiple MIPI DSI funcs in a row
202 */
203struct mipi_dsi_multi_context {
204 /**
205 * @dsi: Pointer to the MIPI DSI device
206 */
207 struct mipi_dsi_device *dsi;
208
209 /**
210 * @accum_err: Storage for the accumulated error over the multiple calls
211 *
212 * Init to 0. If a function encounters an error then the error code
213 * will be stored here. If you call a function and this points to a
214 * non-zero value then the function will be a noop. This allows calling
215 * a function many times in a row and just checking the error at the
216 * end to see if any of them failed.
217 */
218 int accum_err;
219};
220
221#define MIPI_DSI_MODULE_PREFIX "mipi-dsi:"
222
223#define to_mipi_dsi_device(__dev) container_of_const(__dev, struct mipi_dsi_device, dev)
224
225extern const struct bus_type mipi_dsi_bus_type;
226#define dev_is_mipi_dsi(dev) ((dev)->bus == &mipi_dsi_bus_type)
227
228/**
229 * mipi_dsi_pixel_format_to_bpp - obtain the number of bits per pixel for any
230 * given pixel format defined by the MIPI DSI
231 * specification
232 * @fmt: MIPI DSI pixel format
233 *
234 * Returns: The number of bits per pixel of the given pixel format.
235 */
236static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt)
237{
238 switch (fmt) {
239 case MIPI_DSI_FMT_RGB101010:
240 return 30;
241
242 case MIPI_DSI_FMT_RGB888:
243 case MIPI_DSI_FMT_RGB666:
244 return 24;
245
246 case MIPI_DSI_FMT_RGB666_PACKED:
247 return 18;
248
249 case MIPI_DSI_FMT_RGB565:
250 return 16;
251 }
252
253 return -EINVAL;
254}
255
256enum mipi_dsi_compression_algo {
257 MIPI_DSI_COMPRESSION_DSC = 0,
258 MIPI_DSI_COMPRESSION_VENDOR = 3,
259 /* other two values are reserved, DSI 1.3 */
260};
261
262struct mipi_dsi_device *
263mipi_dsi_device_register_full(struct mipi_dsi_host *host,
264 const struct mipi_dsi_device_info *info);
265void mipi_dsi_device_unregister(struct mipi_dsi_device *dsi);
266struct mipi_dsi_device *
267devm_mipi_dsi_device_register_full(struct device *dev, struct mipi_dsi_host *host,
268 const struct mipi_dsi_device_info *info);
269struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np);
270int mipi_dsi_attach(struct mipi_dsi_device *dsi);
271int mipi_dsi_detach(struct mipi_dsi_device *dsi);
272int devm_mipi_dsi_attach(struct device *dev, struct mipi_dsi_device *dsi);
273int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi);
274int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi);
275int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
276 u16 value);
277int mipi_dsi_compression_mode(struct mipi_dsi_device *dsi, bool enable);
278int mipi_dsi_compression_mode_ext(struct mipi_dsi_device *dsi, bool enable,
279 enum mipi_dsi_compression_algo algo,
280 unsigned int pps_selector);
281int mipi_dsi_picture_parameter_set(struct mipi_dsi_device *dsi,
282 const struct drm_dsc_picture_parameter_set *pps);
283
284void mipi_dsi_compression_mode_ext_multi(struct mipi_dsi_multi_context *ctx,
285 bool enable,
286 enum mipi_dsi_compression_algo algo,
287 unsigned int pps_selector);
288void mipi_dsi_compression_mode_multi(struct mipi_dsi_multi_context *ctx,
289 bool enable);
290void mipi_dsi_picture_parameter_set_multi(struct mipi_dsi_multi_context *ctx,
291 const struct drm_dsc_picture_parameter_set *pps);
292
293ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload,
294 size_t size);
295void mipi_dsi_generic_write_multi(struct mipi_dsi_multi_context *ctx,
296 const void *payload, size_t size);
297void mipi_dsi_dual_generic_write_multi(struct mipi_dsi_multi_context *ctx,
298 struct mipi_dsi_device *dsi1,
299 struct mipi_dsi_device *dsi2,
300 const void *payload, size_t size);
301ssize_t mipi_dsi_generic_read(struct mipi_dsi_device *dsi, const void *params,
302 size_t num_params, void *data, size_t size);
303u32 drm_mipi_dsi_get_input_bus_fmt(enum mipi_dsi_pixel_format dsi_format);
304
305#define mipi_dsi_msleep(ctx, delay) \
306 do { \
307 if (!(ctx)->accum_err) \
308 msleep(delay); \
309 } while (0)
310
311#define mipi_dsi_usleep_range(ctx, min, max) \
312 do { \
313 if (!(ctx)->accum_err) \
314 usleep_range(min, max); \
315 } while (0)
316
317/**
318 * enum mipi_dsi_dcs_tear_mode - Tearing Effect Output Line mode
319 * @MIPI_DSI_DCS_TEAR_MODE_VBLANK: the TE output line consists of V-Blanking
320 * information only
321 * @MIPI_DSI_DCS_TEAR_MODE_VHBLANK : the TE output line consists of both
322 * V-Blanking and H-Blanking information
323 */
324enum mipi_dsi_dcs_tear_mode {
325 MIPI_DSI_DCS_TEAR_MODE_VBLANK,
326 MIPI_DSI_DCS_TEAR_MODE_VHBLANK,
327};
328
329#define MIPI_DSI_DCS_POWER_MODE_DISPLAY (1 << 2)
330#define MIPI_DSI_DCS_POWER_MODE_NORMAL (1 << 3)
331#define MIPI_DSI_DCS_POWER_MODE_SLEEP (1 << 4)
332#define MIPI_DSI_DCS_POWER_MODE_PARTIAL (1 << 5)
333#define MIPI_DSI_DCS_POWER_MODE_IDLE (1 << 6)
334
335ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
336 const void *data, size_t len);
337int mipi_dsi_dcs_write_buffer_chatty(struct mipi_dsi_device *dsi,
338 const void *data, size_t len);
339void mipi_dsi_dcs_write_buffer_multi(struct mipi_dsi_multi_context *ctx,
340 const void *data, size_t len);
341void mipi_dsi_dual_dcs_write_buffer_multi(struct mipi_dsi_multi_context *ctx,
342 struct mipi_dsi_device *dsi1,
343 struct mipi_dsi_device *dsi2,
344 const void *data, size_t len);
345ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
346 const void *data, size_t len);
347ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
348 size_t len);
349void mipi_dsi_dcs_read_multi(struct mipi_dsi_multi_context *ctx, u8 cmd,
350 void *data, size_t len);
351int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
352int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
353int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode);
354int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format);
355int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
356int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
357int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
358int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi);
359int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
360 u16 end);
361int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
362 u16 end);
363int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
364 enum mipi_dsi_dcs_tear_mode mode);
365int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format);
366int mipi_dsi_dcs_set_tear_scanline(struct mipi_dsi_device *dsi, u16 scanline);
367int mipi_dsi_dcs_set_display_brightness(struct mipi_dsi_device *dsi,
368 u16 brightness);
369int mipi_dsi_dcs_get_display_brightness(struct mipi_dsi_device *dsi,
370 u16 *brightness);
371int mipi_dsi_dcs_set_display_brightness_large(struct mipi_dsi_device *dsi,
372 u16 brightness);
373int mipi_dsi_dcs_get_display_brightness_large(struct mipi_dsi_device *dsi,
374 u16 *brightness);
375
376void mipi_dsi_dcs_nop_multi(struct mipi_dsi_multi_context *ctx);
377void mipi_dsi_dcs_enter_sleep_mode_multi(struct mipi_dsi_multi_context *ctx);
378void mipi_dsi_dcs_exit_sleep_mode_multi(struct mipi_dsi_multi_context *ctx);
379void mipi_dsi_dcs_set_display_off_multi(struct mipi_dsi_multi_context *ctx);
380void mipi_dsi_dcs_set_display_on_multi(struct mipi_dsi_multi_context *ctx);
381void mipi_dsi_dcs_set_tear_on_multi(struct mipi_dsi_multi_context *ctx,
382 enum mipi_dsi_dcs_tear_mode mode);
383void mipi_dsi_turn_on_peripheral_multi(struct mipi_dsi_multi_context *ctx);
384void mipi_dsi_dcs_soft_reset_multi(struct mipi_dsi_multi_context *ctx);
385void mipi_dsi_dcs_set_display_brightness_multi(struct mipi_dsi_multi_context *ctx,
386 u16 brightness);
387void mipi_dsi_dcs_set_pixel_format_multi(struct mipi_dsi_multi_context *ctx,
388 u8 format);
389void mipi_dsi_dcs_set_column_address_multi(struct mipi_dsi_multi_context *ctx,
390 u16 start, u16 end);
391void mipi_dsi_dcs_set_page_address_multi(struct mipi_dsi_multi_context *ctx,
392 u16 start, u16 end);
393void mipi_dsi_dcs_set_tear_scanline_multi(struct mipi_dsi_multi_context *ctx,
394 u16 scanline);
395void mipi_dsi_dcs_set_tear_off_multi(struct mipi_dsi_multi_context *ctx);
396
397/**
398 * mipi_dsi_generic_write_seq_multi - transmit data using a generic write packet
399 *
400 * This macro will print errors for you and error handling is optimized for
401 * callers that call this multiple times in a row.
402 *
403 * @ctx: Context for multiple DSI transactions
404 * @seq: buffer containing the payload
405 */
406#define mipi_dsi_generic_write_seq_multi(ctx, seq...) \
407 do { \
408 static const u8 d[] = { seq }; \
409 mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d)); \
410 } while (0)
411
412/**
413 * mipi_dsi_generic_write_var_seq_multi - transmit non-constant data using a
414 * generic write packet
415 *
416 * This macro will print errors for you and error handling is optimized for
417 * callers that call this multiple times in a row.
418 *
419 * @ctx: Context for multiple DSI transactions
420 * @seq: buffer containing the payload
421 */
422#define mipi_dsi_generic_write_var_seq_multi(ctx, seq...) \
423 do { \
424 const u8 d[] = { seq }; \
425 mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d)); \
426 } while (0)
427
428/**
429 * mipi_dsi_dcs_write_seq_multi - transmit a DCS command with payload
430 *
431 * This macro will print errors for you and error handling is optimized for
432 * callers that call this multiple times in a row.
433 *
434 * @ctx: Context for multiple DSI transactions
435 * @cmd: Command
436 * @seq: buffer containing data to be transmitted
437 */
438#define mipi_dsi_dcs_write_seq_multi(ctx, cmd, seq...) \
439 do { \
440 static const u8 d[] = { cmd, seq }; \
441 mipi_dsi_dcs_write_buffer_multi(ctx, d, ARRAY_SIZE(d)); \
442 } while (0)
443
444/**
445 * mipi_dsi_dcs_write_var_seq_multi - transmit a DCS command with non-constant
446 * payload
447 *
448 * This macro will print errors for you and error handling is optimized for
449 * callers that call this multiple times in a row.
450 *
451 * @ctx: Context for multiple DSI transactions
452 * @cmd: Command
453 * @seq: buffer containing data to be transmitted
454 */
455#define mipi_dsi_dcs_write_var_seq_multi(ctx, cmd, seq...) \
456 do { \
457 const u8 d[] = { cmd, seq }; \
458 mipi_dsi_dcs_write_buffer_multi(ctx, d, ARRAY_SIZE(d)); \
459 } while (0)
460
461/**
462 * mipi_dsi_dual - send the same MIPI DSI command to two interfaces
463 *
464 * This macro will send the specified MIPI DSI command twice, once per each of
465 * the two interfaces supplied. This is useful for reducing duplication of code
466 * in panel drivers which use two parallel serial interfaces.
467 *
468 * Note that the _func parameter cannot accept a macro such as
469 * mipi_dsi_generic_write_multi() or mipi_dsi_dcs_write_buffer_multi(). See
470 * mipi_dsi_dual_generic_write_multi() and
471 * mipi_dsi_dual_dcs_write_buffer_multi() instead.
472 *
473 * WARNING: This macro reuses the _func argument and the optional trailing
474 * arguments twice each, which may cause unintended side effects. For example,
475 * adding the postfix increment ++ operator to one of the arguments to be
476 * passed to _func will cause the variable to be incremented twice instead of
477 * once and the variable will be its original value + 1 when sent to _dsi2.
478 *
479 * @_func: MIPI DSI function to pass context and arguments into
480 * @_ctx: Context for multiple DSI transactions
481 * @_dsi1: First DSI interface to act as recipient of the MIPI DSI command
482 * @_dsi2: Second DSI interface to act as recipient of the MIPI DSI command
483 * @...: Arguments to pass to MIPI DSI function or macro
484 */
485
486#define mipi_dsi_dual(_func, _ctx, _dsi1, _dsi2, ...) \
487 do { \
488 struct mipi_dsi_multi_context *_ctxcpy = (_ctx); \
489 _ctxcpy->dsi = (_dsi1); \
490 (_func)(_ctxcpy, ##__VA_ARGS__); \
491 _ctxcpy->dsi = (_dsi2); \
492 (_func)(_ctxcpy, ##__VA_ARGS__); \
493 } while (0)
494
495/**
496 * mipi_dsi_dual_generic_write_seq_multi - transmit data using a generic write
497 * packet to two dsi interfaces, one after the other
498 *
499 * This macro will send the specified generic packet twice, once per each of
500 * the two interfaces supplied. This is useful for reducing duplication of code
501 * in panel drivers which use two parallel serial interfaces.
502 *
503 * Note that if an error occurs while transmitting the packet to the first DSI
504 * interface, the packet will not be sent to the second DSI interface.
505 *
506 * This macro will print errors for you and error handling is optimized for
507 * callers that call this multiple times in a row.
508 *
509 * @_ctx: Context for multiple DSI transactions
510 * @_dsi1: First DSI interface to act as recipient of packet
511 * @_dsi2: Second DSI interface to act as recipient of packet
512 * @_seq: buffer containing the payload
513 */
514#define mipi_dsi_dual_generic_write_seq_multi(_ctx, _dsi1, _dsi2, _seq...) \
515 do { \
516 static const u8 d[] = { _seq }; \
517 mipi_dsi_dual_generic_write_multi(_ctx, _dsi1, _dsi2, d, \
518 ARRAY_SIZE(d)); \
519 } while (0)
520
521/**
522 * mipi_dsi_dual_dcs_write_seq_multi - transmit a DCS command with payload to
523 * two dsi interfaces, one after the other
524 *
525 * This macro will send the specified DCS command with payload twice, once per
526 * each of the two interfaces supplied. This is useful for reducing duplication
527 * of code in panel drivers which use two parallel serial interfaces.
528 *
529 * Note that if an error occurs while transmitting the payload to the first DSI
530 * interface, the payload will not be sent to the second DSI interface.
531 *
532 * This macro will print errors for you and error handling is optimized for
533 * callers that call this multiple times in a row.
534 *
535 * @_ctx: Context for multiple DSI transactions
536 * @_dsi1: First DSI interface to act as recipient of packet
537 * @_dsi2: Second DSI interface to act as recipient of packet
538 * @_cmd: Command
539 * @_seq: buffer containing the payload
540 */
541#define mipi_dsi_dual_dcs_write_seq_multi(_ctx, _dsi1, _dsi2, _cmd, _seq...) \
542 do { \
543 static const u8 d[] = { _cmd, _seq }; \
544 mipi_dsi_dual_dcs_write_buffer_multi(_ctx, _dsi1, _dsi2, d, \
545 ARRAY_SIZE(d)); \
546 } while (0)
547
548/**
549 * struct mipi_dsi_driver - DSI driver
550 * @driver: device driver model driver
551 * @probe: callback for device binding
552 * @remove: callback for device unbinding
553 * @shutdown: called at shutdown time to quiesce the device
554 */
555struct mipi_dsi_driver {
556 struct device_driver driver;
557 int(*probe)(struct mipi_dsi_device *dsi);
558 void (*remove)(struct mipi_dsi_device *dsi);
559 void (*shutdown)(struct mipi_dsi_device *dsi);
560};
561
562static inline struct mipi_dsi_driver *
563to_mipi_dsi_driver(struct device_driver *driver)
564{
565 return container_of(driver, struct mipi_dsi_driver, driver);
566}
567
568static inline void *mipi_dsi_get_drvdata(const struct mipi_dsi_device *dsi)
569{
570 return dev_get_drvdata(&dsi->dev);
571}
572
573static inline void mipi_dsi_set_drvdata(struct mipi_dsi_device *dsi, void *data)
574{
575 dev_set_drvdata(&dsi->dev, data);
576}
577
578int mipi_dsi_driver_register_full(struct mipi_dsi_driver *driver,
579 struct module *owner);
580void mipi_dsi_driver_unregister(struct mipi_dsi_driver *driver);
581
582#define mipi_dsi_driver_register(driver) \
583 mipi_dsi_driver_register_full(driver, THIS_MODULE)
584
585#define module_mipi_dsi_driver(__mipi_dsi_driver) \
586 module_driver(__mipi_dsi_driver, mipi_dsi_driver_register, \
587 mipi_dsi_driver_unregister)
588
589#endif /* __DRM_MIPI_DSI__ */