i2c/busses/i2c-bcm-kona.c

245 	int rc;
249 	rc = bcm_kona_i2c_wait_if_busy(dev);
250 	if (rc < 0)
251 		return rc;
270 		rc = -ETIMEDOUT;
276 	return rc;
322 	int rc;
332 		rc = bcm_kona_i2c_read_fifo_single(dev, tmp_buf, bytes_to_read,
334 		if (rc < 0)
348 	int rc;
353 	rc = bcm_kona_i2c_wait_if_busy(dev);
354 	if (rc < 0)
355 		return rc;
446 	int rc;
454 		rc = bcm_kona_i2c_write_fifo_single(dev, tmp_buf,
456 		if (rc < 0)
545 	int rc;
548 	rc = bcm_kona_i2c_write_byte(dev, MASTERCODE, 1);
549 	if (rc < 0) {
551 		return rc;
555 	rc = clk_set_rate(dev->external_clk, HS_EXT_CLK_FREQ);
556 	if (rc) {
558 			__func__, rc);
559 		return rc;
566 	rc = bcm_kona_send_i2c_cmd(dev, BCM_CMD_RESTART);
567 	if (rc < 0)
570 	return rc;
575 	int rc;
581 	rc = clk_set_rate(dev->external_clk, STD_EXT_CLK_FREQ);
582 	if (rc) {
584 			__func__, rc);
587 	return rc;
596 	int rc = 0;
599 	rc = clk_prepare_enable(dev->external_clk);
600 	if (rc) {
602 			__func__, rc);
603 		return rc;
613 	rc = bcm_kona_send_i2c_cmd(dev, BCM_CMD_START);
614 	if (rc < 0) {
615 		dev_err(dev->device, "Start command failed rc = %d\n", rc);
621 		rc = bcm_kona_i2c_switch_to_hs(dev);
622 		if (rc < 0)
632 			rc = bcm_kona_send_i2c_cmd(dev, BCM_CMD_RESTART);
633 			if (rc < 0) {
635 					"restart cmd failed rc = %d\n", rc);
642 			rc = bcm_kona_i2c_do_addr(dev, pmsg);
643 			if (rc < 0) {
645 					"NAK from addr %2.2x msg#%d rc = %d\n",
646 					pmsg->addr, i, rc);
653 			rc = bcm_kona_i2c_read_fifo(dev, pmsg);
654 			if (rc < 0) {
659 			rc = bcm_kona_i2c_write_fifo(dev, pmsg);
660 			if (rc < 0) {
667 	rc = num;
678 			rc = hs_rc;
690 	return rc;
740 	int rc = 0;
765 	rc = clk_set_rate(dev->external_clk, STD_EXT_CLK_FREQ);
766 	if (rc) {
768 			__func__, rc);
769 		return rc;
772 	rc = clk_prepare_enable(dev->external_clk);
773 	if (rc) {
775 		return rc;
779 	rc = bcm_kona_i2c_assign_bus_speed(dev);
780 	if (rc)
814 		rc = dev->irq;
819 	rc = devm_request_irq(&pdev->dev, dev->irq, bcm_kona_i2c_isr,
821 	if (rc) {
847 	rc = i2c_add_adapter(adap);
848 	if (rc)
849 		return rc;
859 	return rc;