change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/ptp/ptp_pch.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * PTP 1588 clock using the EG20T PCH
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  *
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@@ -5,19 +6,6 @@
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  * Copyright (C) 2011-2012 LAPIS SEMICONDUCTOR Co., LTD.
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  *
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  * This code was derived from the IXP46X driver.
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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; version 2 of the License.
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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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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
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  */
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10
 
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 #include <linux/device.h>
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@@ -520,40 +508,8 @@
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 	.enable		= ptp_pch_enable,
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 };
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-
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-#ifdef CONFIG_PM
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-static s32 pch_suspend(struct pci_dev *pdev, pm_message_t state)
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-{
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-	pci_disable_device(pdev);
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-	pci_enable_wake(pdev, PCI_D3hot, 0);
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-
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-	if (pci_save_state(pdev) != 0) {
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-		dev_err(&pdev->dev, "could not save PCI config state\n");
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-		return -ENOMEM;
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-	}
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-	pci_set_power_state(pdev, pci_choose_state(pdev, state));
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-
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-	return 0;
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-}
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-
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-static s32 pch_resume(struct pci_dev *pdev)
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-{
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-	s32 ret;
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-
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-	pci_set_power_state(pdev, PCI_D0);
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-	pci_restore_state(pdev);
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-	ret = pci_enable_device(pdev);
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-	if (ret) {
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-		dev_err(&pdev->dev, "pci_enable_device failed\n");
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-		return ret;
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-	}
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-	pci_enable_wake(pdev, PCI_D3hot, 0);
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-	return 0;
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-}
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-#else
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 #define pch_suspend NULL
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 #define pch_resume NULL
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-#endif
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 static void pch_remove(struct pci_dev *pdev)
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 {
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@@ -697,13 +653,14 @@
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 };
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 MODULE_DEVICE_TABLE(pci, pch_ieee1588_pcidev_id);
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+static SIMPLE_DEV_PM_OPS(pch_pm_ops, pch_suspend, pch_resume);
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+
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 static struct pci_driver pch_driver = {
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 	.name = KBUILD_MODNAME,
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 	.id_table = pch_ieee1588_pcidev_id,
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 	.probe = pch_probe,
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 	.remove = pch_remove,
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-	.suspend = pch_suspend,
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-	.resume = pch_resume,
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+	.driver.pm = &pch_pm_ops,
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 };
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 static void __exit ptp_pch_exit(void)