add driver 5G

hc

2024-01-31 f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2

 kernel/drivers/extcon/extcon-max8997.c
..
..
@@ -1,19 +1,9 @@
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-/*
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- * extcon-max8997.c - MAX8997 extcon driver to support MAX8997 MUIC
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- *
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- *  Copyright (C) 2012 Samsung Electronics
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- *  Donggeun Kim <dg77.kim@samsung.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- */
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+// SPDX-License-Identifier: GPL-2.0+
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+//
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+// extcon-max8997.c - MAX8997 extcon driver to support MAX8997 MUIC
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+//
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+//  Copyright (C) 2012 Samsung Electronics
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+//  Donggeun Kim <dg77.kim@samsung.com>
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7
 
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 #include <linux/kernel.h>
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 #include <linux/module.h>
..
..
@@ -640,6 +630,8 @@
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 	struct max8997_platform_data *pdata = dev_get_platdata(max8997->dev);
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 	struct max8997_muic_info *info;
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 	int delay_jiffies;
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+	int cable_type;
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+	bool attached;
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 	int ret, i;
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 	info = devm_kzalloc(&pdev->dev, sizeof(struct max8997_muic_info),
..
..
@@ -682,7 +674,7 @@
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 	info->edev = devm_extcon_dev_allocate(&pdev->dev, max8997_extcon_cable);
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 	if (IS_ERR(info->edev)) {
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 		dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
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-		ret = -ENOMEM;
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+		ret = PTR_ERR(info->edev);
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 		goto err_irq;
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 	}
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..
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@@ -732,8 +724,17 @@
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 		delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT);
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 	}
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-	/* Set initial path for UART */
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-	 max8997_muic_set_path(info, info->path_uart, true);
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+	/* Set initial path for UART when JIG is connected to get serial logs */
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+	ret = max8997_bulk_read(info->muic, MAX8997_MUIC_REG_STATUS1,
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+				2, info->status);
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+	if (ret) {
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+		dev_err(info->dev, "failed to read MUIC register\n");
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+		goto err_irq;
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+	}
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+	cable_type = max8997_muic_get_cable_type(info,
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+					   MAX8997_CABLE_GROUP_ADC, &attached);
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+	if (attached && cable_type == MAX8997_MUIC_ADC_FACTORY_MODE_UART_OFF)
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+		max8997_muic_set_path(info, info->path_uart, true);
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 	/* Set ADC debounce time */
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 	max8997_muic_set_debounce_time(info, ADC_DEBOUNCE_TIME_25MS);