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