V4L/DVB (5467): Add suspend/resume support to the Cafe CCIC (ff68defa) · Commits · 戴 / test

drivers/media/video/cafe_ccic.c

+44 −1

Original line number	Original line	Diff line number	Diff line
	@@ -37,7 +37,7 @@

	#include "cafe_ccic-regs.h"		#include "cafe_ccic-regs.h"

	#define CAFE_VERSION 0x000001		#define CAFE_VERSION 0x000002


	/*		/*
	@@ -2188,6 +2188,45 @@ static void cafe_pci_remove(struct pci_dev *pdev)
	}		}


			#ifdef CONFIG_PM
			/*
			* Basic power management.
			*/
			static int cafe_pci_suspend(struct pci_dev *pdev, pm_message_t state)
			{
			struct cafe_camera *cam = cafe_find_by_pdev(pdev);
			int ret;

			ret = pci_save_state(pdev);
			if (ret)
			return ret;
			cafe_ctlr_stop_dma(cam);
			cafe_ctlr_power_down(cam);
			pci_disable_device(pdev);
			return 0;
			}


			static int cafe_pci_resume(struct pci_dev *pdev)
			{
			struct cafe_camera *cam = cafe_find_by_pdev(pdev);
			int ret = 0;

			ret = pci_restore_state(pdev);
			if (ret)
			return ret;
			pci_enable_device(pdev);
			cafe_ctlr_init(cam);
			cafe_ctlr_power_up(cam);
			set_bit(CF_CONFIG_NEEDED, &cam->flags);
			if (cam->state == S_SPECREAD)
			cam->state = S_IDLE; /* Don't bother restarting */
			else if (cam->state == S_SINGLEREAD \|\| cam->state == S_STREAMING)
			ret = cafe_read_setup(cam, cam->state);
			return ret;
			}

			#endif /* CONFIG_PM */


	static struct pci_device_id cafe_ids[] = {		static struct pci_device_id cafe_ids[] = {
	@@ -2203,6 +2242,10 @@ static struct pci_driver cafe_pci_driver = {
	.id_table = cafe_ids,		.id_table = cafe_ids,
	.probe = cafe_pci_probe,		.probe = cafe_pci_probe,
	.remove = cafe_pci_remove,		.remove = cafe_pci_remove,
			#ifdef CONFIG_PM
			.suspend = cafe_pci_suspend,
			.resume = cafe_pci_resume,
			#endif
	};		};