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2024-02-19 1c055e55a242a33e574e48be530e06770a210dcd

 kernel/drivers/media/pci/tw68/tw68-core.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  tw68-core.c
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  *  Core functions for the Techwell 68xx driver
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@@ -14,16 +15,6 @@
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  *  Refactored and updated to the latest v4l core frameworks:
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  *
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  *  Copyright (C) 2014 Hans Verkuil <hverkuil@xs4all.nl>
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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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- *  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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 #include <linux/init.h>
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@@ -66,7 +57,7 @@
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 /* ------------------------------------------------------------------ */
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 /*
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- * Please add any new PCI IDs to: http://pci-ids.ucw.cz.  This keeps
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+ * Please add any new PCI IDs to: https://pci-ids.ucw.cz.  This keeps
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  * the PCI ID database up to date.  Note that the entries must be
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  * added under vendor 0x1797 (Techwell Inc.) as subsystem IDs.
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  */
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@@ -368,10 +359,9 @@
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 	v4l2_device_unregister(&dev->v4l2_dev);
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 }
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-#ifdef CONFIG_PM
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-
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-static int tw68_suspend(struct pci_dev *pci_dev , pm_message_t state)
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+static int __maybe_unused tw68_suspend(struct device *dev_d)
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 {
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+	struct pci_dev *pci_dev = to_pci_dev(dev_d);
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 	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
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 	struct tw68_dev *dev = container_of(v4l2_dev,
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 				struct tw68_dev, v4l2_dev);
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@@ -382,23 +372,18 @@
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 	synchronize_irq(pci_dev->irq);
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-	pci_save_state(pci_dev);
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-	pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
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 	vb2_discard_done(&dev->vidq);
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 	return 0;
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 }
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-static int tw68_resume(struct pci_dev *pci_dev)
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+static int __maybe_unused tw68_resume(struct device *dev_d)
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 {
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-	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
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+	struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
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 	struct tw68_dev *dev = container_of(v4l2_dev,
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 					    struct tw68_dev, v4l2_dev);
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 	struct tw68_buf *buf;
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 	unsigned long flags;
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-
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-	pci_set_power_state(pci_dev, PCI_D0);
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-	pci_restore_state(pci_dev);
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 	/* Do things that are done in tw68_initdev ,
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 		except of initializing memory structures.*/
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@@ -417,19 +402,17 @@
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 	return 0;
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 }
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-#endif
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 /* ----------------------------------------------------------- */
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+static SIMPLE_DEV_PM_OPS(tw68_pm_ops, tw68_suspend, tw68_resume);
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+
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 static struct pci_driver tw68_pci_driver = {
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-	.name	  = "tw68",
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-	.id_table = tw68_pci_tbl,
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-	.probe	  = tw68_initdev,
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-	.remove	  = tw68_finidev,
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-#ifdef CONFIG_PM
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-	.suspend  = tw68_suspend,
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-	.resume   = tw68_resume
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-#endif
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+	.name	   = "tw68",
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+	.id_table  = tw68_pci_tbl,
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+	.probe	   = tw68_initdev,
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+	.remove	   = tw68_finidev,
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+	.driver.pm = &tw68_pm_ops,
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 };
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 module_pci_driver(tw68_pci_driver);