add driver 5G

hc

2024-01-31 f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2

 kernel/drivers/extcon/extcon-max14577.c
..
..
@@ -1,20 +1,10 @@
1
-/*
2
- * extcon-max14577.c - MAX14577/77836 extcon driver to support MUIC
3
- *
4
- * Copyright (C) 2013,2014 Samsung Electronics
5
- * Chanwoo Choi <cw00.choi@samsung.com>
6
- * Krzysztof Kozlowski <krzk@kernel.org>
7
- *
8
- * This program is free software; you can redistribute it and/or modify
9
- * it under the terms of the GNU General Public License as published by
10
- * the Free Software Foundation; either version 2 of the License, or
11
- * (at your option) any later version.
12
- *
13
- * This program is distributed in the hope that it will be useful,
14
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
15
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
- * GNU General Public License for more details.
17
- */
1
+// SPDX-License-Identifier: GPL-2.0+
2
+//
3
+// extcon-max14577.c - MAX14577/77836 extcon driver to support MUIC
4
+//
5
+// Copyright (C) 2013,2014 Samsung Electronics
6
+// Chanwoo Choi <cw00.choi@samsung.com>
7
+// Krzysztof Kozlowski <krzk@kernel.org>
18
8
 
19
9
 #include <linux/kernel.h>
20
10
 #include <linux/module.h>
..
..
@@ -667,6 +657,8 @@
667
657
 	struct max14577 *max14577 = dev_get_drvdata(pdev->dev.parent);
668
658
 	struct max14577_muic_info *info;
669
659
 	int delay_jiffies;
660
+	int cable_type;
661
+	bool attached;
670
662
 	int ret;
671
663
 	int i;
672
664
 	u8 id;
..
..
@@ -721,7 +713,7 @@
721
713
 					      max14577_extcon_cable);
722
714
 	if (IS_ERR(info->edev)) {
723
715
 		dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
724
-		return -ENOMEM;
716
+		return PTR_ERR(info->edev);
725
717
 	}
726
718
 
727
719
 	ret = devm_extcon_dev_register(&pdev->dev, info->edev);
..
..
@@ -735,8 +727,17 @@
735
727
 	info->path_uart = CTRL1_SW_UART;
736
728
 	delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT);
737
729
 
738
-	/* Set initial path for UART */
739
-	max14577_muic_set_path(info, info->path_uart, true);
730
+	/* Set initial path for UART when JIG is connected to get serial logs */
731
+	ret = max14577_bulk_read(info->max14577->regmap,
732
+			MAX14577_MUIC_REG_STATUS1, info->status, 2);
733
+	if (ret) {
734
+		dev_err(info->dev, "Cannot read STATUS registers\n");
735
+		return ret;
736
+	}
737
+	cable_type = max14577_muic_get_cable_type(info, MAX14577_CABLE_GROUP_ADC,
738
+					 &attached);
739
+	if (attached && cable_type == MAX14577_MUIC_ADC_FACTORY_MODE_UART_OFF)
740
+		max14577_muic_set_path(info, info->path_uart, true);
740
741
 
741
742
 	/* Check revision number of MUIC device*/
742
743
 	ret = max14577_read_reg(info->max14577->regmap,
..
..
@@ -781,9 +782,19 @@
781
782
 };
782
783
 MODULE_DEVICE_TABLE(platform, max14577_muic_id);
783
784
 
785
+static const struct of_device_id of_max14577_muic_dt_match[] = {
786
+	{ .compatible = "maxim,max14577-muic",
787
+	  .data = (void *)MAXIM_DEVICE_TYPE_MAX14577, },
788
+	{ .compatible = "maxim,max77836-muic",
789
+	  .data = (void *)MAXIM_DEVICE_TYPE_MAX77836, },
790
+	{ },
791
+};
792
+MODULE_DEVICE_TABLE(of, of_max14577_muic_dt_match);
793
+
784
794
 static struct platform_driver max14577_muic_driver = {
785
795
 	.driver		= {
786
796
 		.name	= "max14577-muic",
797
+		.of_match_table = of_max14577_muic_dt_match,
787
798
 	},
788
799
 	.probe		= max14577_muic_probe,
789
800
 	.remove		= max14577_muic_remove,