add driver 5G

hc

2024-01-31 f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2

 kernel/drivers/extcon/extcon-max77843.c
..
..
@@ -1,15 +1,10 @@
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-/*
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- * extcon-max77843.c - Maxim MAX77843 extcon driver to support
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- *			MUIC(Micro USB Interface Controller)
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- *
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- * Copyright (C) 2015 Samsung Electronics
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- * Author: Jaewon Kim <jaewon02.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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+// SPDX-License-Identifier: GPL-2.0+
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+//
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+// extcon-max77843.c - Maxim MAX77843 extcon driver to support
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+//			MUIC(Micro USB Interface Controller)
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+//
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+// Copyright (C) 2015 Samsung Electronics
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+// Author: Jaewon Kim <jaewon02.kim@samsung.com>
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8
 
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 #include <linux/extcon-provider.h>
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 #include <linux/i2c.h>
..
..
@@ -779,12 +774,12 @@
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 {
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 	int ret;
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-	max77843->i2c_muic = i2c_new_dummy(max77843->i2c->adapter,
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+	max77843->i2c_muic = i2c_new_dummy_device(max77843->i2c->adapter,
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 			I2C_ADDR_MUIC);
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-	if (!max77843->i2c_muic) {
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+	if (IS_ERR(max77843->i2c_muic)) {
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 		dev_err(&max77843->i2c->dev,
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 				"Cannot allocate I2C device for MUIC\n");
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-		return -ENOMEM;
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+		return PTR_ERR(max77843->i2c_muic);
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 	}
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 	i2c_set_clientdata(max77843->i2c_muic, max77843);
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@@ -817,6 +812,8 @@
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 	struct max77693_dev *max77843 = dev_get_drvdata(pdev->dev.parent);
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 	struct max77843_muic_info *info;
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 	unsigned int id;
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+	int cable_type;
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+	bool attached;
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 	int i, ret;
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 	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
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@@ -848,7 +845,7 @@
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 			max77843_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 = -ENODEV;
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+		ret = PTR_ERR(info->edev);
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 		goto err_muic_irq;
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 	}
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..
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@@ -861,9 +858,19 @@
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 	/* Set ADC debounce time */
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 	max77843_muic_set_debounce_time(info, MAX77843_DEBOUNCE_TIME_25MS);
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-	/* Set initial path for UART */
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-	max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART, true,
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-			       false);
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+	/* Set initial path for UART when JIG is connected to get serial logs */
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+	ret = regmap_bulk_read(max77843->regmap_muic,
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+			MAX77843_MUIC_REG_STATUS1, info->status,
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+			MAX77843_MUIC_STATUS_NUM);
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+	if (ret) {
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+		dev_err(info->dev, "Cannot read STATUS registers\n");
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+		goto err_muic_irq;
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+	}
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+	cable_type = max77843_muic_get_cable_type(info, MAX77843_CABLE_GROUP_ADC,
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+					 &attached);
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+	if (attached && cable_type == MAX77843_MUIC_ADC_FACTORY_MODE_UART_OFF)
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+		max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART,
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+				       true, false);
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 	/* Check revision number of MUIC device */
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 	ret = regmap_read(max77843->regmap_muic, MAX77843_MUIC_REG_ID, &id);