| .. | .. |
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| 1 | | -/* |
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| 2 | | - * extcon-max8997.c - MAX8997 extcon driver to support MAX8997 MUIC |
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| 3 | | - * |
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| 4 | | - * Copyright (C) 2012 Samsung Electronics |
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| 5 | | - * Donggeun Kim <dg77.kim@samsung.com> |
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| 6 | | - * |
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| 7 | | - * This program is free software; you can redistribute it and/or modify |
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| 8 | | - * it under the terms of the GNU General Public License as published by |
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| 9 | | - * the Free Software Foundation; either version 2 of the License, or |
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| 10 | | - * (at your option) any later version. |
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| 11 | | - * |
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| 12 | | - * This program is distributed in the hope that it will be useful, |
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| 13 | | - * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | | - * GNU General Public License for more details. |
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| 16 | | - */ |
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| 1 | +// SPDX-License-Identifier: GPL-2.0+ |
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| 2 | +// |
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| 3 | +// extcon-max8997.c - MAX8997 extcon driver to support MAX8997 MUIC |
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| 4 | +// |
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| 5 | +// Copyright (C) 2012 Samsung Electronics |
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| 6 | +// Donggeun Kim <dg77.kim@samsung.com> |
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| 17 | 7 | |
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| 18 | 8 | #include <linux/kernel.h> |
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| 19 | 9 | #include <linux/module.h> |
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| .. | .. |
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| 640 | 630 | struct max8997_platform_data *pdata = dev_get_platdata(max8997->dev); |
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| 641 | 631 | struct max8997_muic_info *info; |
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| 642 | 632 | int delay_jiffies; |
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| 633 | + int cable_type; |
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| 634 | + bool attached; |
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| 643 | 635 | int ret, i; |
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| 644 | 636 | |
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| 645 | 637 | info = devm_kzalloc(&pdev->dev, sizeof(struct max8997_muic_info), |
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| .. | .. |
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| 682 | 674 | info->edev = devm_extcon_dev_allocate(&pdev->dev, max8997_extcon_cable); |
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| 683 | 675 | if (IS_ERR(info->edev)) { |
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| 684 | 676 | dev_err(&pdev->dev, "failed to allocate memory for extcon\n"); |
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| 685 | | - ret = -ENOMEM; |
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| 677 | + ret = PTR_ERR(info->edev); |
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| 686 | 678 | goto err_irq; |
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| 687 | 679 | } |
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| 688 | 680 | |
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| .. | .. |
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| 732 | 724 | delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); |
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| 733 | 725 | } |
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| 734 | 726 | |
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| 735 | | - /* Set initial path for UART */ |
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| 736 | | - max8997_muic_set_path(info, info->path_uart, true); |
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| 727 | + /* Set initial path for UART when JIG is connected to get serial logs */ |
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| 728 | + ret = max8997_bulk_read(info->muic, MAX8997_MUIC_REG_STATUS1, |
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| 729 | + 2, info->status); |
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| 730 | + if (ret) { |
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| 731 | + dev_err(info->dev, "failed to read MUIC register\n"); |
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| 732 | + goto err_irq; |
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| 733 | + } |
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| 734 | + cable_type = max8997_muic_get_cable_type(info, |
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| 735 | + MAX8997_CABLE_GROUP_ADC, &attached); |
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| 736 | + if (attached && cable_type == MAX8997_MUIC_ADC_FACTORY_MODE_UART_OFF) |
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| 737 | + max8997_muic_set_path(info, info->path_uart, true); |
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| 737 | 738 | |
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| 738 | 739 | /* Set ADC debounce time */ |
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| 739 | 740 | max8997_muic_set_debounce_time(info, ADC_DEBOUNCE_TIME_25MS); |
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