drivers/misc/gehc-achc.c

66 	int ret;
73 	ret = spi_sync_locked(spi, &msg);
74 	if (ret)
85 	ret = spi_sync_locked(spi, &msg);
89 	return ret;
102 	int ret;
104 	ret = spi_w8r8(spi, EZPORT_CMD_RDSR);
105 	if (ret < 0)
106 		return ret;
107 	if (ret == 0xff) {
112 	return ret;
118 	int ret;
120 	ret = spi_write(spi, &cmd, 1);
121 	if (ret < 0)
122 		return ret;
131 	int ret;
133 	ret = spi_write(spi, &cmd, 1);
134 	if (ret < 0)
135 		return ret;
142 	int ret;
146 		ret = ezport_get_status_register(spi);
147 		if (ret >= 0 && !(ret & EZPORT_STATUS_WIP))
152 	return ret;
157 	int ret = 0, retries = 3;
160 		ret = ezport_send_simple(spi, EZPORT_CMD_WREN);
161 		if (ret > 0 && ret & EZPORT_STATUS_WEN)
165 	if (!(ret & EZPORT_STATUS_WEN)) {
174 	int ret;
179 	ret = ezport_write_enable(spi);
180 	if (ret < 0)
181 		return ret;
183 	ret = spi_write(spi, &cmd, 1);
184 	if (ret < 0)
185 		return ret;
187 	ret = ezport_wait_write(spi, 1000);
188 	if (ret < 0)
189 		return ret;
197 	int ret;
204 	ret = ezport_write_enable(spi);
205 	if (ret < 0)
206 		return ret;
208 	ret = spi_write(spi, query, sizeof(query));
209 	if (ret < 0)
210 		return ret;
220 	int ret;
224 	ret = ezport_write_enable(spi);
225 	if (ret < 0)
226 		return ret;
243 	ret = spi_sync_transfer(spi, xfers, 2);
245 	if (ret < 0)
246 		return ret;
256 	int ret;
275 	ret = spi_sync_transfer(spi, xfers, 2);
276 	if (ret)
280 	ret = memcmp(payload, buffer + 4 + 1, payload_size);
281 	if (ret) {
282 		ret = -EBADMSG;
290 	return ret;
296 	int ret;
302 	ret = ezport_get_status_register(spi);
303 	if (ret < 0)
304 		return ret;
306 	if (ret & EZPORT_STATUS_FS) {
307 		dev_info(&spi->dev, "Device is in secure mode (status=0x%02x)!\n", ret);
315 		ret = ezport_flash_compare(spi, address, data+address, transfer_size);
316 		if (ret)
317 			return ret;
328 	int ret;
334 	ret = ezport_get_status_register(spi);
335 	if (ret < 0)
336 		return ret;
338 	if (ret & EZPORT_STATUS_FS) {
339 		ret = ezport_bulk_erase(spi);
340 		if (ret < 0)
341 			return ret;
342 		if (ret & EZPORT_STATUS_FS)
348 			ret = ezport_section_erase(spi, address);
349 			if (ret < 0)
350 				return ret;
351 			if (ret & EZPORT_STATUS_WIP || ret & EZPORT_STATUS_WEF)
357 		ret = ezport_flash_transfer(spi, address,
359 		if (ret < 0)
360 			return ret;
361 		else if (ret & EZPORT_STATUS_WIP)
363 		else if (ret & EZPORT_STATUS_WEF)
370 	ret = ezport_firmware_compare_data(spi, data, size);
373 	if (ret == -EACCES)
374 		ret = 0;
376 	if (ret < 0)
377 		dev_err(&spi->dev, "Failed to verify flashed data: %d\n", ret);
379 	ret = ezport_soft_reset(spi);
380 	if (ret < 0)
383 	return ret;
389 	int ret;
391 	ret = request_firmware(&fw, fwname, &spi->dev);
392 	if (ret) {
393 		dev_err(&spi->dev, "Could not get firmware: %d\n", ret);
394 		return ret;
397 	ret = ezport_firmware_flash_data(spi, fw->data, fw->size);
401 	return ret;
416 	int ret;
418 	ret = ezport_start_programming(spi, reset);
419 	if (ret)
420 		return ret;
422 	ret = ezport_firmware_load(spi, fwname);
426 	if (ret)
427 		dev_err(&spi->dev, "Failed to flash firmware: %d\n", ret);
431 	return ret;
439 	int ret;
441 	ret = kstrtoul(buf, 0, &value);
442 	if (ret < 0 || value != 1)
446 	ret = ezport_flash(achc->ezport, achc->reset, "achc.bin");
449 	if (ret < 0)
450 		return ret;
459 	int ret;
462 	ret = gpiod_get_value(achc->reset);
465 	if (ret < 0)
466 		return ret;
468 	return sysfs_emit(buf, "%d\n", ret);
476 	int ret;
478 	ret = kstrtoul(buf, 0, &value);
479 	if (ret < 0 || value > 1)
507 	int ezport_reg, ret;
521 	ret = of_property_read_u32_index(spi->dev.of_node, "reg", 1, &ezport_reg);
522 	if (ret)
523 		return dev_err_probe(&spi->dev, ret, "missing second reg entry!\n");
529 	ret = devm_add_action_or_reset(&spi->dev, unregister_ezport, achc->ezport);
530 	if (ret)
531 		return ret;