1 /* SPDX-License-Identifier: GPL-2.0+ */ 1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /* 2 /*
3 * Copyright (C) 2018 Exceet Electronics GmbH 3 * Copyright (C) 2018 Exceet Electronics GmbH
4 * Copyright (C) 2018 Bootlin 4 * Copyright (C) 2018 Bootlin
5 * 5 *
6 * Author: 6 * Author:
7 * Peter Pan <peterpandong@micron.com> 7 * Peter Pan <peterpandong@micron.com>
8 * Boris Brezillon <boris.brezillon@bootl 8 * Boris Brezillon <boris.brezillon@bootlin.com>
9 */ 9 */
10 10
11 #ifndef __LINUX_SPI_MEM_H 11 #ifndef __LINUX_SPI_MEM_H
12 #define __LINUX_SPI_MEM_H 12 #define __LINUX_SPI_MEM_H
13 13
14 #include <linux/spi/spi.h> 14 #include <linux/spi/spi.h>
15 15
16 #define SPI_MEM_OP_CMD(__opcode, __buswidth) 16 #define SPI_MEM_OP_CMD(__opcode, __buswidth) \
17 { 17 { \
18 .buswidth = __buswidth, 18 .buswidth = __buswidth, \
19 .opcode = __opcode, 19 .opcode = __opcode, \
20 .nbytes = 1, <<
21 } 20 }
22 21
23 #define SPI_MEM_OP_ADDR(__nbytes, __val, __bus 22 #define SPI_MEM_OP_ADDR(__nbytes, __val, __buswidth) \
24 { 23 { \
25 .nbytes = __nbytes, 24 .nbytes = __nbytes, \
26 .val = __val, 25 .val = __val, \
27 .buswidth = __buswidth, 26 .buswidth = __buswidth, \
28 } 27 }
29 28
30 #define SPI_MEM_OP_NO_ADDR { } 29 #define SPI_MEM_OP_NO_ADDR { }
31 30
32 #define SPI_MEM_OP_DUMMY(__nbytes, __buswidth) 31 #define SPI_MEM_OP_DUMMY(__nbytes, __buswidth) \
33 { 32 { \
34 .nbytes = __nbytes, 33 .nbytes = __nbytes, \
35 .buswidth = __buswidth, 34 .buswidth = __buswidth, \
36 } 35 }
37 36
38 #define SPI_MEM_OP_NO_DUMMY { } 37 #define SPI_MEM_OP_NO_DUMMY { }
39 38
40 #define SPI_MEM_OP_DATA_IN(__nbytes, __buf, __ 39 #define SPI_MEM_OP_DATA_IN(__nbytes, __buf, __buswidth) \
41 { 40 { \
42 .dir = SPI_MEM_DATA_IN, 41 .dir = SPI_MEM_DATA_IN, \
43 .nbytes = __nbytes, 42 .nbytes = __nbytes, \
44 .buf.in = __buf, 43 .buf.in = __buf, \
45 .buswidth = __buswidth, 44 .buswidth = __buswidth, \
46 } 45 }
47 46
48 #define SPI_MEM_OP_DATA_OUT(__nbytes, __buf, _ 47 #define SPI_MEM_OP_DATA_OUT(__nbytes, __buf, __buswidth) \
49 { 48 { \
50 .dir = SPI_MEM_DATA_OUT, 49 .dir = SPI_MEM_DATA_OUT, \
51 .nbytes = __nbytes, 50 .nbytes = __nbytes, \
52 .buf.out = __buf, 51 .buf.out = __buf, \
53 .buswidth = __buswidth, 52 .buswidth = __buswidth, \
54 } 53 }
55 54
56 #define SPI_MEM_OP_NO_DATA { } 55 #define SPI_MEM_OP_NO_DATA { }
57 56
58 /** 57 /**
59 * enum spi_mem_data_dir - describes the direc 58 * enum spi_mem_data_dir - describes the direction of a SPI memory data
60 * transfer from the c 59 * transfer from the controller perspective
61 * @SPI_MEM_NO_DATA: no data transferred 60 * @SPI_MEM_NO_DATA: no data transferred
62 * @SPI_MEM_DATA_IN: data coming from the SPI 61 * @SPI_MEM_DATA_IN: data coming from the SPI memory
63 * @SPI_MEM_DATA_OUT: data sent to the SPI mem 62 * @SPI_MEM_DATA_OUT: data sent to the SPI memory
64 */ 63 */
65 enum spi_mem_data_dir { 64 enum spi_mem_data_dir {
66 SPI_MEM_NO_DATA, 65 SPI_MEM_NO_DATA,
67 SPI_MEM_DATA_IN, 66 SPI_MEM_DATA_IN,
68 SPI_MEM_DATA_OUT, 67 SPI_MEM_DATA_OUT,
69 }; 68 };
70 69
71 /** 70 /**
72 * struct spi_mem_op - describes a SPI memory 71 * struct spi_mem_op - describes a SPI memory operation
73 * @cmd.nbytes: number of opcode bytes (only 1 <<
74 * sent MSB-first. <<
75 * @cmd.buswidth: number of IO lines used to t 72 * @cmd.buswidth: number of IO lines used to transmit the command
76 * @cmd.opcode: operation opcode 73 * @cmd.opcode: operation opcode
77 * @cmd.dtr: whether the command opcode should <<
78 * @addr.nbytes: number of address bytes to se 74 * @addr.nbytes: number of address bytes to send. Can be zero if the operation
79 * does not need to send an addr 75 * does not need to send an address
80 * @addr.buswidth: number of IO lines used to 76 * @addr.buswidth: number of IO lines used to transmit the address cycles
81 * @addr.dtr: whether the address should be se <<
82 * @addr.val: address value. This value is alw 77 * @addr.val: address value. This value is always sent MSB first on the bus.
83 * Note that only @addr.nbytes are 78 * Note that only @addr.nbytes are taken into account in this
84 * address value, so users should m 79 * address value, so users should make sure the value fits in the
85 * assigned number of bytes. 80 * assigned number of bytes.
86 * @dummy.nbytes: number of dummy bytes to sen 81 * @dummy.nbytes: number of dummy bytes to send after an opcode or address. Can
87 * be zero if the operation doe 82 * be zero if the operation does not require dummy bytes
88 * @dummy.buswidth: number of IO lanes used to 83 * @dummy.buswidth: number of IO lanes used to transmit the dummy bytes
89 * @dummy.dtr: whether the dummy bytes should <<
90 * @data.buswidth: number of IO lanes used to 84 * @data.buswidth: number of IO lanes used to send/receive the data
91 * @data.dtr: whether the data should be sent <<
92 * @data.ecc: whether error correction is requ <<
93 * @data.dir: direction of the transfer 85 * @data.dir: direction of the transfer
94 * @data.nbytes: number of data bytes to send/ 86 * @data.nbytes: number of data bytes to send/receive. Can be zero if the
95 * operation does not involve tr 87 * operation does not involve transferring data
96 * @data.buf.in: input buffer (must be DMA-abl 88 * @data.buf.in: input buffer (must be DMA-able)
97 * @data.buf.out: output buffer (must be DMA-a 89 * @data.buf.out: output buffer (must be DMA-able)
98 */ 90 */
99 struct spi_mem_op { 91 struct spi_mem_op {
100 struct { 92 struct {
101 u8 nbytes; <<
102 u8 buswidth; 93 u8 buswidth;
103 u8 dtr : 1; !! 94 u8 opcode;
104 u8 __pad : 7; <<
105 u16 opcode; <<
106 } cmd; 95 } cmd;
107 96
108 struct { 97 struct {
109 u8 nbytes; 98 u8 nbytes;
110 u8 buswidth; 99 u8 buswidth;
111 u8 dtr : 1; <<
112 u8 __pad : 7; <<
113 u64 val; 100 u64 val;
114 } addr; 101 } addr;
115 102
116 struct { 103 struct {
117 u8 nbytes; 104 u8 nbytes;
118 u8 buswidth; 105 u8 buswidth;
119 u8 dtr : 1; <<
120 u8 __pad : 7; <<
121 } dummy; 106 } dummy;
122 107
123 struct { 108 struct {
124 u8 buswidth; 109 u8 buswidth;
125 u8 dtr : 1; <<
126 u8 ecc : 1; <<
127 u8 __pad : 6; <<
128 enum spi_mem_data_dir dir; 110 enum spi_mem_data_dir dir;
129 unsigned int nbytes; 111 unsigned int nbytes;
130 union { 112 union {
131 void *in; 113 void *in;
132 const void *out; 114 const void *out;
133 } buf; 115 } buf;
134 } data; 116 } data;
135 }; 117 };
136 118
137 #define SPI_MEM_OP(__cmd, __addr, __dummy, __d 119 #define SPI_MEM_OP(__cmd, __addr, __dummy, __data) \
138 { 120 { \
139 .cmd = __cmd, 121 .cmd = __cmd, \
140 .addr = __addr, 122 .addr = __addr, \
141 .dummy = __dummy, 123 .dummy = __dummy, \
142 .data = __data, 124 .data = __data, \
143 } 125 }
144 126
145 /** 127 /**
146 * struct spi_mem_dirmap_info - Direct mapping 128 * struct spi_mem_dirmap_info - Direct mapping information
147 * @op_tmpl: operation template that should be 129 * @op_tmpl: operation template that should be used by the direct mapping when
148 * the memory device is accessed 130 * the memory device is accessed
149 * @offset: absolute offset this direct mappin 131 * @offset: absolute offset this direct mapping is pointing to
150 * @length: length in byte of this direct mapp 132 * @length: length in byte of this direct mapping
151 * 133 *
152 * These information are used by the controlle 134 * These information are used by the controller specific implementation to know
153 * the portion of memory that is directly mapp 135 * the portion of memory that is directly mapped and the spi_mem_op that should
154 * be used to access the device. 136 * be used to access the device.
155 * A direct mapping is only valid for one dire 137 * A direct mapping is only valid for one direction (read or write) and this
156 * direction is directly encoded in the ->op_t 138 * direction is directly encoded in the ->op_tmpl.data.dir field.
157 */ 139 */
158 struct spi_mem_dirmap_info { 140 struct spi_mem_dirmap_info {
159 struct spi_mem_op op_tmpl; 141 struct spi_mem_op op_tmpl;
160 u64 offset; 142 u64 offset;
161 u64 length; 143 u64 length;
162 }; 144 };
163 145
164 /** 146 /**
165 * struct spi_mem_dirmap_desc - Direct mapping 147 * struct spi_mem_dirmap_desc - Direct mapping descriptor
166 * @mem: the SPI memory device this direct map 148 * @mem: the SPI memory device this direct mapping is attached to
167 * @info: information passed at direct mapping 149 * @info: information passed at direct mapping creation time
168 * @nodirmap: set to 1 if the SPI controller d 150 * @nodirmap: set to 1 if the SPI controller does not implement
169 * ->mem_ops->dirmap_create() or wh 151 * ->mem_ops->dirmap_create() or when this function returned an
170 * error. If @nodirmap is true, all 152 * error. If @nodirmap is true, all spi_mem_dirmap_{read,write}()
171 * calls will use spi_mem_exec_op() 153 * calls will use spi_mem_exec_op() to access the memory. This is a
172 * degraded mode that allows spi_me 154 * degraded mode that allows spi_mem drivers to use the same code
173 * no matter whether the controller 155 * no matter whether the controller supports direct mapping or not
174 * @priv: field pointing to controller specifi 156 * @priv: field pointing to controller specific data
175 * 157 *
176 * Common part of a direct mapping descriptor. 158 * Common part of a direct mapping descriptor. This object is created by
177 * spi_mem_dirmap_create() and controller impl 159 * spi_mem_dirmap_create() and controller implementation of ->create_dirmap()
178 * can create/attach direct mapping resources 160 * can create/attach direct mapping resources to the descriptor in the ->priv
179 * field. 161 * field.
180 */ 162 */
181 struct spi_mem_dirmap_desc { 163 struct spi_mem_dirmap_desc {
182 struct spi_mem *mem; 164 struct spi_mem *mem;
183 struct spi_mem_dirmap_info info; 165 struct spi_mem_dirmap_info info;
184 unsigned int nodirmap; 166 unsigned int nodirmap;
185 void *priv; 167 void *priv;
186 }; 168 };
187 169
188 /** 170 /**
189 * struct spi_mem - describes a SPI memory dev 171 * struct spi_mem - describes a SPI memory device
190 * @spi: the underlying SPI device 172 * @spi: the underlying SPI device
191 * @drvpriv: spi_mem_driver private data 173 * @drvpriv: spi_mem_driver private data
192 * @name: name of the SPI memory device 174 * @name: name of the SPI memory device
193 * 175 *
194 * Extra information that describe the SPI mem 176 * Extra information that describe the SPI memory device and may be needed by
195 * the controller to properly handle this devi 177 * the controller to properly handle this device should be placed here.
196 * 178 *
197 * One example would be the device size since 179 * One example would be the device size since some controller expose their SPI
198 * mem devices through a io-mapped region. 180 * mem devices through a io-mapped region.
199 */ 181 */
200 struct spi_mem { 182 struct spi_mem {
201 struct spi_device *spi; 183 struct spi_device *spi;
202 void *drvpriv; 184 void *drvpriv;
203 const char *name; 185 const char *name;
204 }; 186 };
205 187
206 /** 188 /**
207 * struct spi_mem_set_drvdata() - attach drive 189 * struct spi_mem_set_drvdata() - attach driver private data to a SPI mem
208 * device 190 * device
209 * @mem: memory device 191 * @mem: memory device
210 * @data: data to attach to the memory device 192 * @data: data to attach to the memory device
211 */ 193 */
212 static inline void spi_mem_set_drvdata(struct 194 static inline void spi_mem_set_drvdata(struct spi_mem *mem, void *data)
213 { 195 {
214 mem->drvpriv = data; 196 mem->drvpriv = data;
215 } 197 }
216 198
217 /** 199 /**
218 * struct spi_mem_get_drvdata() - get driver p 200 * struct spi_mem_get_drvdata() - get driver private data attached to a SPI mem
219 * device 201 * device
220 * @mem: memory device 202 * @mem: memory device
221 * 203 *
222 * Return: the data attached to the mem device 204 * Return: the data attached to the mem device.
223 */ 205 */
224 static inline void *spi_mem_get_drvdata(struct 206 static inline void *spi_mem_get_drvdata(struct spi_mem *mem)
225 { 207 {
226 return mem->drvpriv; 208 return mem->drvpriv;
227 } 209 }
228 210
229 /** 211 /**
230 * struct spi_controller_mem_ops - SPI memory 212 * struct spi_controller_mem_ops - SPI memory operations
231 * @adjust_op_size: shrink the data xfer of an 213 * @adjust_op_size: shrink the data xfer of an operation to match controller's
232 * limitations (can be alignm !! 214 * limitations (can be alignment of max RX/TX size
233 * limitations) 215 * limitations)
234 * @supports_op: check if an operation is supp 216 * @supports_op: check if an operation is supported by the controller
235 * @exec_op: execute a SPI memory operation 217 * @exec_op: execute a SPI memory operation
236 * not all driver provides supports_ <<
237 * if the op is not supported by the <<
238 * @get_name: get a custom name for the SPI me 218 * @get_name: get a custom name for the SPI mem device from the controller.
239 * This might be needed if the cont 219 * This might be needed if the controller driver has been ported
240 * to use the SPI mem layer and a c 220 * to use the SPI mem layer and a custom name is used to keep
241 * mtdparts compatible. 221 * mtdparts compatible.
242 * Note that if the implementation 222 * Note that if the implementation of this function allocates memory
243 * dynamically, then it should do s 223 * dynamically, then it should do so with devm_xxx(), as we don't
244 * have a ->free_name() function. 224 * have a ->free_name() function.
245 * @dirmap_create: create a direct mapping des 225 * @dirmap_create: create a direct mapping descriptor that can later be used to
246 * access the memory device. T 226 * access the memory device. This method is optional
247 * @dirmap_destroy: destroy a memory descripto 227 * @dirmap_destroy: destroy a memory descriptor previous created by
248 * ->dirmap_create() 228 * ->dirmap_create()
249 * @dirmap_read: read data from the memory dev 229 * @dirmap_read: read data from the memory device using the direct mapping
250 * created by ->dirmap_create(). 230 * created by ->dirmap_create(). The function can return less
251 * data than requested (for exam 231 * data than requested (for example when the request is crossing
252 * the currently mapped area), a 232 * the currently mapped area), and the caller of
253 * spi_mem_dirmap_read() is resp 233 * spi_mem_dirmap_read() is responsible for calling it again in
254 * this case. 234 * this case.
255 * @dirmap_write: write data to the memory dev 235 * @dirmap_write: write data to the memory device using the direct mapping
256 * created by ->dirmap_create() 236 * created by ->dirmap_create(). The function can return less
257 * data than requested (for exa 237 * data than requested (for example when the request is crossing
258 * the currently mapped area), 238 * the currently mapped area), and the caller of
259 * spi_mem_dirmap_write() is re 239 * spi_mem_dirmap_write() is responsible for calling it again in
260 * this case. 240 * this case.
261 * @poll_status: poll memory device status unt <<
262 * when the timeout has expired. <<
263 * the last status value. <<
264 * 241 *
265 * This interface should be implemented by SPI 242 * This interface should be implemented by SPI controllers providing an
266 * high-level interface to execute SPI memory 243 * high-level interface to execute SPI memory operation, which is usually the
267 * case for QSPI controllers. 244 * case for QSPI controllers.
268 * 245 *
269 * Note on ->dirmap_{read,write}(): drivers sh 246 * Note on ->dirmap_{read,write}(): drivers should avoid accessing the direct
270 * mapping from the CPU because doing that can 247 * mapping from the CPU because doing that can stall the CPU waiting for the
271 * SPI mem transaction to finish, and this wil 248 * SPI mem transaction to finish, and this will make real-time maintainers
272 * unhappy and might make your system less rea 249 * unhappy and might make your system less reactive. Instead, drivers should
273 * use DMA to access this direct mapping. 250 * use DMA to access this direct mapping.
274 */ 251 */
275 struct spi_controller_mem_ops { 252 struct spi_controller_mem_ops {
276 int (*adjust_op_size)(struct spi_mem * 253 int (*adjust_op_size)(struct spi_mem *mem, struct spi_mem_op *op);
277 bool (*supports_op)(struct spi_mem *me 254 bool (*supports_op)(struct spi_mem *mem,
278 const struct spi_m 255 const struct spi_mem_op *op);
279 int (*exec_op)(struct spi_mem *mem, 256 int (*exec_op)(struct spi_mem *mem,
280 const struct spi_mem_op 257 const struct spi_mem_op *op);
281 const char *(*get_name)(struct spi_mem 258 const char *(*get_name)(struct spi_mem *mem);
282 int (*dirmap_create)(struct spi_mem_di 259 int (*dirmap_create)(struct spi_mem_dirmap_desc *desc);
283 void (*dirmap_destroy)(struct spi_mem_ 260 void (*dirmap_destroy)(struct spi_mem_dirmap_desc *desc);
284 ssize_t (*dirmap_read)(struct spi_mem_ 261 ssize_t (*dirmap_read)(struct spi_mem_dirmap_desc *desc,
285 u64 offs, size_ 262 u64 offs, size_t len, void *buf);
286 ssize_t (*dirmap_write)(struct spi_mem 263 ssize_t (*dirmap_write)(struct spi_mem_dirmap_desc *desc,
287 u64 offs, size 264 u64 offs, size_t len, const void *buf);
288 int (*poll_status)(struct spi_mem *mem <<
289 const struct spi_me <<
290 u16 mask, u16 match <<
291 unsigned long initi <<
292 unsigned long polli <<
293 unsigned long timeo <<
294 }; 265 };
295 266
296 /** 267 /**
297 * struct spi_controller_mem_caps - SPI memory <<
298 * @dtr: Supports DTR operations <<
299 * @ecc: Supports operations with error correc <<
300 */ <<
301 struct spi_controller_mem_caps { <<
302 bool dtr; <<
303 bool ecc; <<
304 }; <<
305 <<
306 #define spi_mem_controller_is_capable(ctlr, ca <<
307 ((ctlr)->mem_caps && (ctlr)->mem_caps- <<
308 <<
309 /** <<
310 * struct spi_mem_driver - SPI memory driver 268 * struct spi_mem_driver - SPI memory driver
311 * @spidrv: inherit from a SPI driver 269 * @spidrv: inherit from a SPI driver
312 * @probe: probe a SPI memory. Usually where d 270 * @probe: probe a SPI memory. Usually where detection/initialization takes
313 * place 271 * place
314 * @remove: remove a SPI memory 272 * @remove: remove a SPI memory
315 * @shutdown: take appropriate action when the 273 * @shutdown: take appropriate action when the system is shutdown
316 * 274 *
317 * This is just a thin wrapper around a spi_dr 275 * This is just a thin wrapper around a spi_driver. The core takes care of
318 * allocating the spi_mem object and forwardin 276 * allocating the spi_mem object and forwarding the probe/remove/shutdown
319 * request to the spi_mem_driver. The reason w 277 * request to the spi_mem_driver. The reason we use this wrapper is because
320 * we might have to stuff more information int 278 * we might have to stuff more information into the spi_mem struct to let
321 * SPI controllers know more about the SPI mem 279 * SPI controllers know more about the SPI memory they interact with, and
322 * having this intermediate layer allows us to 280 * having this intermediate layer allows us to do that without adding more
323 * useless fields to the spi_device object. 281 * useless fields to the spi_device object.
324 */ 282 */
325 struct spi_mem_driver { 283 struct spi_mem_driver {
326 struct spi_driver spidrv; 284 struct spi_driver spidrv;
327 int (*probe)(struct spi_mem *mem); 285 int (*probe)(struct spi_mem *mem);
328 int (*remove)(struct spi_mem *mem); 286 int (*remove)(struct spi_mem *mem);
329 void (*shutdown)(struct spi_mem *mem); 287 void (*shutdown)(struct spi_mem *mem);
330 }; 288 };
331 289
332 #if IS_ENABLED(CONFIG_SPI_MEM) 290 #if IS_ENABLED(CONFIG_SPI_MEM)
333 int spi_controller_dma_map_mem_op_data(struct 291 int spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr,
334 const s 292 const struct spi_mem_op *op,
335 struct 293 struct sg_table *sg);
336 294
337 void spi_controller_dma_unmap_mem_op_data(stru 295 void spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr,
338 cons 296 const struct spi_mem_op *op,
339 stru 297 struct sg_table *sg);
340 298
341 bool spi_mem_default_supports_op(struct spi_me 299 bool spi_mem_default_supports_op(struct spi_mem *mem,
342 const struct 300 const struct spi_mem_op *op);
>> 301
343 #else 302 #else
344 static inline int 303 static inline int
345 spi_controller_dma_map_mem_op_data(struct spi_ 304 spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr,
346 const struc 305 const struct spi_mem_op *op,
347 struct sg_t 306 struct sg_table *sg)
348 { 307 {
349 return -ENOTSUPP; 308 return -ENOTSUPP;
350 } 309 }
351 310
352 static inline void 311 static inline void
353 spi_controller_dma_unmap_mem_op_data(struct sp 312 spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr,
354 const str 313 const struct spi_mem_op *op,
355 struct sg 314 struct sg_table *sg)
356 { 315 {
357 } 316 }
358 317
359 static inline 318 static inline
360 bool spi_mem_default_supports_op(struct spi_me 319 bool spi_mem_default_supports_op(struct spi_mem *mem,
361 const struct 320 const struct spi_mem_op *op)
362 { 321 {
363 return false; 322 return false;
364 } 323 }
>> 324
365 #endif /* CONFIG_SPI_MEM */ 325 #endif /* CONFIG_SPI_MEM */
366 326
367 int spi_mem_adjust_op_size(struct spi_mem *mem 327 int spi_mem_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op);
368 328
369 bool spi_mem_supports_op(struct spi_mem *mem, 329 bool spi_mem_supports_op(struct spi_mem *mem,
370 const struct spi_mem_ 330 const struct spi_mem_op *op);
371 331
372 int spi_mem_exec_op(struct spi_mem *mem, 332 int spi_mem_exec_op(struct spi_mem *mem,
373 const struct spi_mem_op *o 333 const struct spi_mem_op *op);
374 334
375 const char *spi_mem_get_name(struct spi_mem *m 335 const char *spi_mem_get_name(struct spi_mem *mem);
376 336
377 struct spi_mem_dirmap_desc * 337 struct spi_mem_dirmap_desc *
378 spi_mem_dirmap_create(struct spi_mem *mem, 338 spi_mem_dirmap_create(struct spi_mem *mem,
379 const struct spi_mem_dir 339 const struct spi_mem_dirmap_info *info);
380 void spi_mem_dirmap_destroy(struct spi_mem_dir 340 void spi_mem_dirmap_destroy(struct spi_mem_dirmap_desc *desc);
381 ssize_t spi_mem_dirmap_read(struct spi_mem_dir 341 ssize_t spi_mem_dirmap_read(struct spi_mem_dirmap_desc *desc,
382 u64 offs, size_t l 342 u64 offs, size_t len, void *buf);
383 ssize_t spi_mem_dirmap_write(struct spi_mem_di 343 ssize_t spi_mem_dirmap_write(struct spi_mem_dirmap_desc *desc,
384 u64 offs, size_t 344 u64 offs, size_t len, const void *buf);
385 struct spi_mem_dirmap_desc * 345 struct spi_mem_dirmap_desc *
386 devm_spi_mem_dirmap_create(struct device *dev, 346 devm_spi_mem_dirmap_create(struct device *dev, struct spi_mem *mem,
387 const struct spi_me 347 const struct spi_mem_dirmap_info *info);
388 void devm_spi_mem_dirmap_destroy(struct device 348 void devm_spi_mem_dirmap_destroy(struct device *dev,
389 struct spi_me 349 struct spi_mem_dirmap_desc *desc);
390 <<
391 int spi_mem_poll_status(struct spi_mem *mem, <<
392 const struct spi_mem_o <<
393 u16 mask, u16 match, <<
394 unsigned long initial_ <<
395 unsigned long polling_ <<
396 u16 timeout_ms); <<
397 350
398 int spi_mem_driver_register_with_owner(struct 351 int spi_mem_driver_register_with_owner(struct spi_mem_driver *drv,
399 struct 352 struct module *owner);
400 353
401 void spi_mem_driver_unregister(struct spi_mem_ 354 void spi_mem_driver_unregister(struct spi_mem_driver *drv);
402 355
403 #define spi_mem_driver_register(__drv) 356 #define spi_mem_driver_register(__drv) \
404 spi_mem_driver_register_with_owner(__d 357 spi_mem_driver_register_with_owner(__drv, THIS_MODULE)
405 358
406 #define module_spi_mem_driver(__drv) 359 #define module_spi_mem_driver(__drv) \
407 module_driver(__drv, spi_mem_driver_re 360 module_driver(__drv, spi_mem_driver_register, \
408 spi_mem_driver_unregiste 361 spi_mem_driver_unregister)
409 362
410 #endif /* __LINUX_SPI_MEM_H */ 363 #endif /* __LINUX_SPI_MEM_H */
411 364
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