88 	int rc;  in fsi_spi_check_mux()  local
92 	rc = fsi_slave_read(fsi->slave, FSI_MBOX_ROOT_CTRL_8, &root_ctrl_8_be,  in fsi_spi_check_mux()
94 	if (rc)  in fsi_spi_check_mux()
95 		return rc;  in fsi_spi_check_mux()
108 	int rc;  in fsi_spi_check_status()  local
112 	rc = fsi_device_read(ctx->bridge->fsi, FSI2SPI_STATUS, &sts_be,  in fsi_spi_check_status()
114 	if (rc)  in fsi_spi_check_status()
115 		return rc;  in fsi_spi_check_status()
128 	int rc = 0;  in fsi_spi_read_reg()  local
139 	rc = mutex_lock_interruptible(&bridge->lock);  in fsi_spi_read_reg()
140 	if (rc)  in fsi_spi_read_reg()
141 		return rc;  in fsi_spi_read_reg()
144 	rc = fsi_device_write(bridge->fsi, FSI2SPI_CMD, &cmd_be,  in fsi_spi_read_reg()
146 	if (rc)  in fsi_spi_read_reg()
149 	rc = fsi_spi_check_status(ctx);  in fsi_spi_read_reg()
150 	if (rc)  in fsi_spi_read_reg()
153 	rc = fsi_device_read(bridge->fsi, FSI2SPI_DATA0, &data_be,  in fsi_spi_read_reg()
155 	if (rc)  in fsi_spi_read_reg()
160 	rc = fsi_device_read(bridge->fsi, FSI2SPI_DATA1, &data_be,  in fsi_spi_read_reg()
162 	if (rc)  in fsi_spi_read_reg()
170 	return rc;  in fsi_spi_read_reg()
175 	int rc = 0;  in fsi_spi_write_reg()  local
184 	rc = mutex_lock_interruptible(&bridge->lock);  in fsi_spi_write_reg()
185 	if (rc)  in fsi_spi_write_reg()
186 		return rc;  in fsi_spi_write_reg()
191 	rc = fsi_device_write(bridge->fsi, FSI2SPI_DATA0, &data_be,  in fsi_spi_write_reg()
193 	if (rc)  in fsi_spi_write_reg()
197 	rc = fsi_device_write(bridge->fsi, FSI2SPI_DATA1, &data_be,  in fsi_spi_write_reg()
199 	if (rc)  in fsi_spi_write_reg()
203 	rc = fsi_device_write(bridge->fsi, FSI2SPI_CMD, &cmd_be,  in fsi_spi_write_reg()
205 	if (rc)  in fsi_spi_write_reg()
208 	rc = fsi_spi_check_status(ctx);  in fsi_spi_write_reg()
212 	return rc;  in fsi_spi_write_reg()
243 	int rc;  in fsi_spi_reset()  local
247 	rc = fsi_spi_write_reg(ctx, SPI_FSI_CLOCK_CFG,  in fsi_spi_reset()
249 	if (rc)  in fsi_spi_reset()
250 		return rc;  in fsi_spi_reset()
252 	rc = fsi_spi_write_reg(ctx, SPI_FSI_CLOCK_CFG,  in fsi_spi_reset()
254 	if (rc)  in fsi_spi_reset()
255 		return rc;  in fsi_spi_reset()
262 	int rc = fsi_spi_read_reg(ctx, SPI_FSI_STATUS, status);  in fsi_spi_status()  local
264 	if (rc)  in fsi_spi_status()
265 		return rc;  in fsi_spi_status()
270 		rc = fsi_spi_reset(ctx);  in fsi_spi_status()
271 		if (rc)  in fsi_spi_status()
272 			return rc;  in fsi_spi_status()
302 	int rc = 0;  in fsi_spi_transfer_data()  local
316 			rc = fsi_spi_write_reg(ctx, SPI_FSI_DATA_TX, out);  in fsi_spi_transfer_data()
317 			if (rc)  in fsi_spi_transfer_data()
318 				return rc;  in fsi_spi_transfer_data()
326 				rc = fsi_spi_status(ctx, &status, "TX");  in fsi_spi_transfer_data()
327 				if (rc)  in fsi_spi_transfer_data()
328 					return rc;  in fsi_spi_transfer_data()
345 				rc = fsi_spi_status(ctx, &status, "RX");  in fsi_spi_transfer_data()
346 				if (rc)  in fsi_spi_transfer_data()
347 					return rc;  in fsi_spi_transfer_data()
350 			rc = fsi_spi_read_reg(ctx, SPI_FSI_DATA_RX, &in);  in fsi_spi_transfer_data()
351 			if (rc)  in fsi_spi_transfer_data()
352 				return rc;  in fsi_spi_transfer_data()
365 	int rc;  in fsi_spi_transfer_init()  local
380 		rc = fsi_spi_read_reg(ctx, SPI_FSI_STATUS, &status);  in fsi_spi_transfer_init()
381 		if (rc)  in fsi_spi_transfer_init()
382 			return rc;  in fsi_spi_transfer_init()
396 			rc = fsi_spi_reset(ctx);  in fsi_spi_transfer_init()
397 			if (rc)  in fsi_spi_transfer_init()
398 				return rc;  in fsi_spi_transfer_init()
405 	rc = fsi_spi_write_reg(ctx, SPI_FSI_COUNTER_CFG, 0ULL);  in fsi_spi_transfer_init()
406 	if (rc)  in fsi_spi_transfer_init()
407 		return rc;  in fsi_spi_transfer_init()
409 	rc = fsi_spi_read_reg(ctx, SPI_FSI_CLOCK_CFG, &clock_cfg);  in fsi_spi_transfer_init()
410 	if (rc)  in fsi_spi_transfer_init()
411 		return rc;  in fsi_spi_transfer_init()
418 		rc = fsi_spi_write_reg(ctx, SPI_FSI_CLOCK_CFG,  in fsi_spi_transfer_init()
421 	return rc;  in fsi_spi_transfer_init()
427 	int rc;  in fsi_spi_transfer_one_message()  local
433 	rc = fsi_spi_check_mux(ctx->bridge->fsi, ctx->dev);  in fsi_spi_transfer_one_message()
434 	if (rc)  in fsi_spi_transfer_one_message()
443 			rc = -EINVAL;  in fsi_spi_transfer_one_message()
449 		rc = fsi_spi_transfer_init(ctx);  in fsi_spi_transfer_one_message()
450 		if (rc < 0)  in fsi_spi_transfer_one_message()
473 					rc = -EINVAL;  in fsi_spi_transfer_one_message()
489 		rc = fsi_spi_write_reg(ctx, SPI_FSI_SEQUENCE, seq.data);  in fsi_spi_transfer_one_message()
490 		if (rc)  in fsi_spi_transfer_one_message()
493 		rc = fsi_spi_transfer_data(ctx, transfer);  in fsi_spi_transfer_one_message()
494 		if (rc)  in fsi_spi_transfer_one_message()
498 			rc = fsi_spi_transfer_data(ctx, next);  in fsi_spi_transfer_one_message()
499 			if (rc)  in fsi_spi_transfer_one_message()
507 	mesg->status = rc;  in fsi_spi_transfer_one_message()
510 	return rc;  in fsi_spi_transfer_one_message()
520 	int rc;  in fsi_spi_probe()  local
526 	rc = fsi_spi_check_mux(fsi, dev);  in fsi_spi_probe()
527 	if (rc)  in fsi_spi_probe()
562 		rc = devm_spi_register_controller(dev, ctlr);  in fsi_spi_probe()
563 		if (rc)  in fsi_spi_probe()