From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/drivers/extcon/extcon-max14577.c | 51 +++++++++++++++++++++++++++++++--------------------
1 files changed, 31 insertions(+), 20 deletions(-)
diff --git a/kernel/drivers/extcon/extcon-max14577.c b/kernel/drivers/extcon/extcon-max14577.c
index b871836..ace5239 100644
--- a/kernel/drivers/extcon/extcon-max14577.c
+++ b/kernel/drivers/extcon/extcon-max14577.c
@@ -1,20 +1,10 @@
-/*
- * extcon-max14577.c - MAX14577/77836 extcon driver to support MUIC
- *
- * Copyright (C) 2013,2014 Samsung Electronics
- * Chanwoo Choi <cw00.choi@samsung.com>
- * Krzysztof Kozlowski <krzk@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+// SPDX-License-Identifier: GPL-2.0+
+//
+// extcon-max14577.c - MAX14577/77836 extcon driver to support MUIC
+//
+// Copyright (C) 2013,2014 Samsung Electronics
+// Chanwoo Choi <cw00.choi@samsung.com>
+// Krzysztof Kozlowski <krzk@kernel.org>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -667,6 +657,8 @@
struct max14577 *max14577 = dev_get_drvdata(pdev->dev.parent);
struct max14577_muic_info *info;
int delay_jiffies;
+ int cable_type;
+ bool attached;
int ret;
int i;
u8 id;
@@ -721,7 +713,7 @@
max14577_extcon_cable);
if (IS_ERR(info->edev)) {
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
- return -ENOMEM;
+ return PTR_ERR(info->edev);
}
ret = devm_extcon_dev_register(&pdev->dev, info->edev);
@@ -735,8 +727,17 @@
info->path_uart = CTRL1_SW_UART;
delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT);
- /* Set initial path for UART */
- max14577_muic_set_path(info, info->path_uart, true);
+ /* Set initial path for UART when JIG is connected to get serial logs */
+ ret = max14577_bulk_read(info->max14577->regmap,
+ MAX14577_MUIC_REG_STATUS1, info->status, 2);
+ if (ret) {
+ dev_err(info->dev, "Cannot read STATUS registers\n");
+ return ret;
+ }
+ cable_type = max14577_muic_get_cable_type(info, MAX14577_CABLE_GROUP_ADC,
+ &attached);
+ if (attached && cable_type == MAX14577_MUIC_ADC_FACTORY_MODE_UART_OFF)
+ max14577_muic_set_path(info, info->path_uart, true);
/* Check revision number of MUIC device*/
ret = max14577_read_reg(info->max14577->regmap,
@@ -781,9 +782,19 @@
};
MODULE_DEVICE_TABLE(platform, max14577_muic_id);
+static const struct of_device_id of_max14577_muic_dt_match[] = {
+ { .compatible = "maxim,max14577-muic",
+ .data = (void *)MAXIM_DEVICE_TYPE_MAX14577, },
+ { .compatible = "maxim,max77836-muic",
+ .data = (void *)MAXIM_DEVICE_TYPE_MAX77836, },
+ { },
+};
+MODULE_DEVICE_TABLE(of, of_max14577_muic_dt_match);
+
static struct platform_driver max14577_muic_driver = {
.driver = {
.name = "max14577-muic",
+ .of_match_table = of_max14577_muic_dt_match,
},
.probe = max14577_muic_probe,
.remove = max14577_muic_remove,
--
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