90 	int rc;  in fsi_spi_check_mux()  local
94 	rc = fsi_slave_read(fsi->slave, FSI_MBOX_ROOT_CTRL_8, &root_ctrl_8_be,  in fsi_spi_check_mux()
96 	if (rc)  in fsi_spi_check_mux()
97 		return rc;  in fsi_spi_check_mux()
110 	int rc;  in fsi_spi_check_status()  local
114 	rc = fsi_device_read(ctx->fsi, FSI2SPI_STATUS, &sts_be,  in fsi_spi_check_status()
116 	if (rc)  in fsi_spi_check_status()
117 		return rc;  in fsi_spi_check_status()
130 	int rc;  in fsi_spi_read_reg()  local
141 	rc = fsi_device_write(ctx->fsi, FSI2SPI_CMD, &cmd_be, sizeof(cmd_be));  in fsi_spi_read_reg()
142 	if (rc)  in fsi_spi_read_reg()
143 		return rc;  in fsi_spi_read_reg()
145 	rc = fsi_spi_check_status(ctx);  in fsi_spi_read_reg()
146 	if (rc)  in fsi_spi_read_reg()
147 		return rc;  in fsi_spi_read_reg()
149 	rc = fsi_device_read(ctx->fsi, FSI2SPI_DATA0, &data_be,  in fsi_spi_read_reg()
151 	if (rc)  in fsi_spi_read_reg()
152 		return rc;  in fsi_spi_read_reg()
156 	rc = fsi_device_read(ctx->fsi, FSI2SPI_DATA1, &data_be,  in fsi_spi_read_reg()
158 	if (rc)  in fsi_spi_read_reg()
159 		return rc;  in fsi_spi_read_reg()
169 	int rc;  in fsi_spi_write_reg()  local
180 	rc = fsi_device_write(ctx->fsi, FSI2SPI_DATA0, &data_be,  in fsi_spi_write_reg()
182 	if (rc)  in fsi_spi_write_reg()
183 		return rc;  in fsi_spi_write_reg()
186 	rc = fsi_device_write(ctx->fsi, FSI2SPI_DATA1, &data_be,  in fsi_spi_write_reg()
188 	if (rc)  in fsi_spi_write_reg()
189 		return rc;  in fsi_spi_write_reg()
192 	rc = fsi_device_write(ctx->fsi, FSI2SPI_CMD, &cmd_be, sizeof(cmd_be));  in fsi_spi_write_reg()
193 	if (rc)  in fsi_spi_write_reg()
194 		return rc;  in fsi_spi_write_reg()
227 	int rc;  in fsi_spi_reset()  local
231 	rc = fsi_spi_write_reg(ctx, SPI_FSI_CLOCK_CFG,  in fsi_spi_reset()
233 	if (rc)  in fsi_spi_reset()
234 		return rc;  in fsi_spi_reset()
236 	rc = fsi_spi_write_reg(ctx, SPI_FSI_CLOCK_CFG,  in fsi_spi_reset()
238 	if (rc)  in fsi_spi_reset()
239 		return rc;  in fsi_spi_reset()
271 	int rc;  in fsi_spi_sequence_transfer()  local
323 		rc = fsi_spi_write_reg(ctx, SPI_FSI_COUNTER_CFG, cfg);  in fsi_spi_sequence_transfer()
324 		if (rc)  in fsi_spi_sequence_transfer()
325 			return rc;  in fsi_spi_sequence_transfer()
339 	int rc = 0;  in fsi_spi_transfer_data()  local
353 			rc = fsi_spi_write_reg(ctx, SPI_FSI_DATA_TX, out);  in fsi_spi_transfer_data()
354 			if (rc)  in fsi_spi_transfer_data()
355 				return rc;  in fsi_spi_transfer_data()
358 				rc = fsi_spi_read_reg(ctx, SPI_FSI_STATUS,  in fsi_spi_transfer_data()
360 				if (rc)  in fsi_spi_transfer_data()
361 					return rc;  in fsi_spi_transfer_data()
364 					rc = fsi_spi_reset(ctx);  in fsi_spi_transfer_data()
365 					if (rc)  in fsi_spi_transfer_data()
366 						return rc;  in fsi_spi_transfer_data()
379 		rc = fsi_spi_read_reg(ctx, SPI_FSI_COUNTER_CFG, &cfg);  in fsi_spi_transfer_data()
380 		if (rc)  in fsi_spi_transfer_data()
381 			return rc;  in fsi_spi_transfer_data()
384 			rc = fsi_spi_write_reg(ctx, SPI_FSI_DATA_TX, 0);  in fsi_spi_transfer_data()
385 			if (rc)  in fsi_spi_transfer_data()
386 				return rc;  in fsi_spi_transfer_data()
391 				rc = fsi_spi_read_reg(ctx, SPI_FSI_STATUS,  in fsi_spi_transfer_data()
393 				if (rc)  in fsi_spi_transfer_data()
394 					return rc;  in fsi_spi_transfer_data()
397 					rc = fsi_spi_reset(ctx);  in fsi_spi_transfer_data()
398 					if (rc)  in fsi_spi_transfer_data()
399 						return rc;  in fsi_spi_transfer_data()
405 			rc = fsi_spi_read_reg(ctx, SPI_FSI_DATA_RX, &in);  in fsi_spi_transfer_data()
406 			if (rc)  in fsi_spi_transfer_data()
407 				return rc;  in fsi_spi_transfer_data()
419 	int rc;  in fsi_spi_transfer_init()  local
434 		rc = fsi_spi_read_reg(ctx, SPI_FSI_STATUS, &status);  in fsi_spi_transfer_init()
435 		if (rc)  in fsi_spi_transfer_init()
436 			return rc;  in fsi_spi_transfer_init()
446 			rc = fsi_spi_reset(ctx);  in fsi_spi_transfer_init()
447 			if (rc)  in fsi_spi_transfer_init()
448 				return rc;  in fsi_spi_transfer_init()
455 	rc = fsi_spi_read_reg(ctx, SPI_FSI_CLOCK_CFG, &clock_cfg);  in fsi_spi_transfer_init()
456 	if (rc)  in fsi_spi_transfer_init()
457 		return rc;  in fsi_spi_transfer_init()
464 		rc = fsi_spi_write_reg(ctx, SPI_FSI_CLOCK_CFG,  in fsi_spi_transfer_init()
467 	return rc;  in fsi_spi_transfer_init()
473 	int rc;  in fsi_spi_transfer_one_message()  local
478 	rc = fsi_spi_check_mux(ctx->fsi, ctx->dev);  in fsi_spi_transfer_one_message()
479 	if (rc)  in fsi_spi_transfer_one_message()
489 			rc = -EINVAL;  in fsi_spi_transfer_one_message()
495 		rc = fsi_spi_transfer_init(ctx);  in fsi_spi_transfer_one_message()
496 		if (rc < 0)  in fsi_spi_transfer_one_message()
502 		rc = fsi_spi_sequence_transfer(ctx, &seq, transfer);  in fsi_spi_transfer_one_message()
503 		if (rc)  in fsi_spi_transfer_one_message()
513 					rc = -EINVAL;  in fsi_spi_transfer_one_message()
520 				rc = fsi_spi_sequence_transfer(ctx, &seq,  in fsi_spi_transfer_one_message()
522 				if (rc)  in fsi_spi_transfer_one_message()
531 		rc = fsi_spi_write_reg(ctx, SPI_FSI_SEQUENCE, seq.data);  in fsi_spi_transfer_one_message()
532 		if (rc)  in fsi_spi_transfer_one_message()
535 		rc = fsi_spi_transfer_data(ctx, transfer);  in fsi_spi_transfer_one_message()
536 		if (rc)  in fsi_spi_transfer_one_message()
540 			rc = fsi_spi_transfer_data(ctx, next);  in fsi_spi_transfer_one_message()
541 			if (rc)  in fsi_spi_transfer_one_message()
549 	mesg->status = rc;  in fsi_spi_transfer_one_message()
552 	return rc;  in fsi_spi_transfer_one_message()
564 	int rc;  in fsi_spi_probe()  local
569 	rc = fsi_spi_check_mux(fsi, dev);  in fsi_spi_probe()
570 	if (rc)  in fsi_spi_probe()
604 		rc = devm_spi_register_controller(dev, ctlr);  in fsi_spi_probe()
605 		if (rc)  in fsi_spi_probe()