add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/power/reset/gpio-restart.c
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@@ -1,16 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Toggles a GPIO pin to restart a device
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  *
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  * Copyright (C) 2014 Google, Inc.
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- *
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- * This software is licensed under the terms of the GNU General Public
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- * License version 2, as published by the Free Software Foundation, and
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- * may be copied, distributed, and modified under those terms.
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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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  * Based on the gpio-poweroff driver.
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  */
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@@ -72,9 +64,11 @@
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 	gpio_restart->reset_gpio = devm_gpiod_get(&pdev->dev, NULL,
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 			open_source ? GPIOD_IN : GPIOD_OUT_LOW);
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-	if (IS_ERR(gpio_restart->reset_gpio)) {
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-		dev_err(&pdev->dev, "Could net get reset GPIO\n");
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-		return PTR_ERR(gpio_restart->reset_gpio);
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+	ret = PTR_ERR_OR_ZERO(gpio_restart->reset_gpio);
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+	if (ret) {
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+		if (ret != -EPROBE_DEFER)
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+			dev_err(&pdev->dev, "Could not get reset GPIO\n");
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+		return ret;
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 	}
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 	gpio_restart->restart_handler.notifier_call = gpio_restart_notify;