Lines Matching refs:edev
48 static inline bool has_quirk_single_word_read(struct eeprom_93xx46_dev *edev) in has_quirk_single_word_read() argument
50 return edev->pdata->quirks & EEPROM_93XX46_QUIRK_SINGLE_WORD_READ; in has_quirk_single_word_read()
53 static inline bool has_quirk_instruction_length(struct eeprom_93xx46_dev *edev) in has_quirk_instruction_length() argument
55 return edev->pdata->quirks & EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH; in has_quirk_instruction_length()
61 struct eeprom_93xx46_dev *edev = priv; in eeprom_93xx46_read() local
65 if (unlikely(off >= edev->size)) in eeprom_93xx46_read()
67 if ((off + count) > edev->size) in eeprom_93xx46_read()
68 count = edev->size - off; in eeprom_93xx46_read()
72 mutex_lock(&edev->lock); in eeprom_93xx46_read()
74 if (edev->pdata->prepare) in eeprom_93xx46_read()
75 edev->pdata->prepare(edev); in eeprom_93xx46_read()
80 u16 cmd_addr = OP_READ << edev->addrlen; in eeprom_93xx46_read()
84 if (edev->addrlen == 7) { in eeprom_93xx46_read()
87 if (has_quirk_single_word_read(edev)) in eeprom_93xx46_read()
92 if (has_quirk_single_word_read(edev)) in eeprom_93xx46_read()
96 dev_dbg(&edev->spi->dev, "read cmd 0x%x, %d Hz\n", in eeprom_93xx46_read()
97 cmd_addr, edev->spi->max_speed_hz); in eeprom_93xx46_read()
111 err = spi_sync(edev->spi, &m); in eeprom_93xx46_read()
116 dev_err(&edev->spi->dev, "read %zu bytes at %d: err. %d\n", in eeprom_93xx46_read()
126 if (edev->pdata->finish) in eeprom_93xx46_read()
127 edev->pdata->finish(edev); in eeprom_93xx46_read()
129 mutex_unlock(&edev->lock); in eeprom_93xx46_read()
134 static int eeprom_93xx46_ew(struct eeprom_93xx46_dev *edev, int is_on) in eeprom_93xx46_ew() argument
141 cmd_addr = OP_START << edev->addrlen; in eeprom_93xx46_ew()
142 if (edev->addrlen == 7) { in eeprom_93xx46_ew()
150 if (has_quirk_instruction_length(edev)) { in eeprom_93xx46_ew()
155 dev_dbg(&edev->spi->dev, "ew%s cmd 0x%04x, %d bits\n", in eeprom_93xx46_ew()
166 mutex_lock(&edev->lock); in eeprom_93xx46_ew()
168 if (edev->pdata->prepare) in eeprom_93xx46_ew()
169 edev->pdata->prepare(edev); in eeprom_93xx46_ew()
171 ret = spi_sync(edev->spi, &m); in eeprom_93xx46_ew()
175 dev_err(&edev->spi->dev, "erase/write %sable error %d\n", in eeprom_93xx46_ew()
178 if (edev->pdata->finish) in eeprom_93xx46_ew()
179 edev->pdata->finish(edev); in eeprom_93xx46_ew()
181 mutex_unlock(&edev->lock); in eeprom_93xx46_ew()
186 eeprom_93xx46_write_word(struct eeprom_93xx46_dev *edev, in eeprom_93xx46_write_word() argument
194 cmd_addr = OP_WRITE << edev->addrlen; in eeprom_93xx46_write_word()
196 if (edev->addrlen == 7) { in eeprom_93xx46_write_word()
206 dev_dbg(&edev->spi->dev, "write cmd 0x%x\n", cmd_addr); in eeprom_93xx46_write_word()
221 ret = spi_sync(edev->spi, &m); in eeprom_93xx46_write_word()
230 struct eeprom_93xx46_dev *edev = priv; in eeprom_93xx46_write() local
234 if (unlikely(off >= edev->size)) in eeprom_93xx46_write()
236 if ((off + count) > edev->size) in eeprom_93xx46_write()
237 count = edev->size - off; in eeprom_93xx46_write()
242 if (edev->addrlen == 6) { in eeprom_93xx46_write()
248 ret = eeprom_93xx46_ew(edev, 1); in eeprom_93xx46_write()
252 mutex_lock(&edev->lock); in eeprom_93xx46_write()
254 if (edev->pdata->prepare) in eeprom_93xx46_write()
255 edev->pdata->prepare(edev); in eeprom_93xx46_write()
258 ret = eeprom_93xx46_write_word(edev, &buf[i], off + i); in eeprom_93xx46_write()
260 dev_err(&edev->spi->dev, "write failed at %d: %d\n", in eeprom_93xx46_write()
266 if (edev->pdata->finish) in eeprom_93xx46_write()
267 edev->pdata->finish(edev); in eeprom_93xx46_write()
269 mutex_unlock(&edev->lock); in eeprom_93xx46_write()
272 eeprom_93xx46_ew(edev, 0); in eeprom_93xx46_write()
276 static int eeprom_93xx46_eral(struct eeprom_93xx46_dev *edev) in eeprom_93xx46_eral() argument
278 struct eeprom_93xx46_platform_data *pd = edev->pdata; in eeprom_93xx46_eral()
284 cmd_addr = OP_START << edev->addrlen; in eeprom_93xx46_eral()
285 if (edev->addrlen == 7) { in eeprom_93xx46_eral()
293 if (has_quirk_instruction_length(edev)) { in eeprom_93xx46_eral()
298 dev_dbg(&edev->spi->dev, "eral cmd 0x%04x, %d bits\n", cmd_addr, bits); in eeprom_93xx46_eral()
308 mutex_lock(&edev->lock); in eeprom_93xx46_eral()
310 if (edev->pdata->prepare) in eeprom_93xx46_eral()
311 edev->pdata->prepare(edev); in eeprom_93xx46_eral()
313 ret = spi_sync(edev->spi, &m); in eeprom_93xx46_eral()
315 dev_err(&edev->spi->dev, "erase error %d\n", ret); in eeprom_93xx46_eral()
320 pd->finish(edev); in eeprom_93xx46_eral()
322 mutex_unlock(&edev->lock); in eeprom_93xx46_eral()
330 struct eeprom_93xx46_dev *edev = dev_get_drvdata(dev); in eeprom_93xx46_store_erase() local
335 ret = eeprom_93xx46_ew(edev, 1); in eeprom_93xx46_store_erase()
338 ret = eeprom_93xx46_eral(edev); in eeprom_93xx46_store_erase()
341 ret = eeprom_93xx46_ew(edev, 0); in eeprom_93xx46_store_erase()
351 struct eeprom_93xx46_dev *edev = context; in select_assert() local
353 gpiod_set_value_cansleep(edev->pdata->select, 1); in select_assert()
358 struct eeprom_93xx46_dev *edev = context; in select_deassert() local
360 gpiod_set_value_cansleep(edev->pdata->select, 0); in select_deassert()
424 struct eeprom_93xx46_dev *edev; in eeprom_93xx46_probe() local
439 edev = devm_kzalloc(&spi->dev, sizeof(*edev), GFP_KERNEL); in eeprom_93xx46_probe()
440 if (!edev) in eeprom_93xx46_probe()
444 edev->addrlen = 7; in eeprom_93xx46_probe()
446 edev->addrlen = 6; in eeprom_93xx46_probe()
452 mutex_init(&edev->lock); in eeprom_93xx46_probe()
454 edev->spi = spi; in eeprom_93xx46_probe()
455 edev->pdata = pd; in eeprom_93xx46_probe()
457 edev->size = 128; in eeprom_93xx46_probe()
458 edev->nvmem_config.name = dev_name(&spi->dev); in eeprom_93xx46_probe()
459 edev->nvmem_config.dev = &spi->dev; in eeprom_93xx46_probe()
460 edev->nvmem_config.read_only = pd->flags & EE_READONLY; in eeprom_93xx46_probe()
461 edev->nvmem_config.root_only = true; in eeprom_93xx46_probe()
462 edev->nvmem_config.owner = THIS_MODULE; in eeprom_93xx46_probe()
463 edev->nvmem_config.compat = true; in eeprom_93xx46_probe()
464 edev->nvmem_config.base_dev = &spi->dev; in eeprom_93xx46_probe()
465 edev->nvmem_config.reg_read = eeprom_93xx46_read; in eeprom_93xx46_probe()
466 edev->nvmem_config.reg_write = eeprom_93xx46_write; in eeprom_93xx46_probe()
467 edev->nvmem_config.priv = edev; in eeprom_93xx46_probe()
468 edev->nvmem_config.stride = 4; in eeprom_93xx46_probe()
469 edev->nvmem_config.word_size = 1; in eeprom_93xx46_probe()
470 edev->nvmem_config.size = edev->size; in eeprom_93xx46_probe()
472 edev->nvmem = devm_nvmem_register(&spi->dev, &edev->nvmem_config); in eeprom_93xx46_probe()
473 if (IS_ERR(edev->nvmem)) in eeprom_93xx46_probe()
474 return PTR_ERR(edev->nvmem); in eeprom_93xx46_probe()
485 spi_set_drvdata(spi, edev); in eeprom_93xx46_probe()
491 struct eeprom_93xx46_dev *edev = spi_get_drvdata(spi); in eeprom_93xx46_remove() local
493 if (!(edev->pdata->flags & EE_READONLY)) in eeprom_93xx46_remove()