PCI: remove useless pci driver method (56906c61) · Commits · 戴 / test

Documentation/pci.txt

+0 −3

Original line number	Diff line number	Diff line
		@@ -113,9 +113,6 @@ initialization with a pointer to a structure describing the driver
		(Please see Documentation/power/pci.txt for descriptions
		of PCI Power Management and the related functions.)

		enable_wake Enable device to generate wake events from a low power
		state.

		shutdown Hook into reboot_notifier_list (kernel/sys.c).
		Intended to stop any idling DMA operations.
		Useful for enabling wake-on-lan (NIC) or changing

Documentation/power/pci.txt

+0 −37

Original line number	Diff line number	Diff line
		@@ -164,7 +164,6 @@ struct pci_driver:

		int (suspend) (struct pci_dev dev, pm_message_t state);
		int (resume) (struct pci_dev dev);
		int (enable_wake) (struct pci_dev dev, pci_power_t state, int enable);


		suspend
		@@ -251,42 +250,6 @@ The driver should update the current_state field in its pci_dev structure in
		this function, except for PM-capable devices when pci_set_power_state is used.


		enable_wake
		-----------

		Usage:

		if (dev->driver && dev->driver->enable_wake)
		dev->driver->enable_wake(dev,state,enable);

		This callback is generally only relevant for devices that support the PCI PM
		spec and have the ability to generate a PME# (Power Management Event Signal)
		to wake the system up. (However, it is possible that a device may support
		some non-standard way of generating a wake event on sleep.)

		Bits 15:11 of the PMC (Power Mgmt Capabilities) Register in a device's
		PM Capabilities describe what power states the device supports generating a
		wake event from:

		+------------------+
		\| Bit \| State \|
		+------------------+
		\| 11 \| D0 \|
		\| 12 \| D1 \|
		\| 13 \| D2 \|
		\| 14 \| D3hot \|
		\| 15 \| D3cold \|
		+------------------+

		A device can use this to enable wake events:

		pci_enable_wake(dev,state,enable);

		Note that to enable PME# from D3cold, a value of 4 should be passed to
		pci_enable_wake (since it uses an index into a bitmask). If a driver gets
		a request to enable wake events from D3, two calls should be made to
		pci_enable_wake (one for both D3hot and D3cold).


		A reference implementation
		-------------------------

drivers/net/typhoon.c

+0 −7

Original line number	Diff line number	Diff line
		@@ -2267,12 +2267,6 @@ need_resume:
		typhoon_resume(pdev);
		return -EBUSY;
		}

		static int
		typhoon_enable_wake(struct pci_dev *pdev, pci_power_t state, int enable)
		{
		return pci_enable_wake(pdev, state, enable);
		}
		#endif

		static int __devinit
		@@ -2636,7 +2630,6 @@ static struct pci_driver typhoon_driver = {
		#ifdef CONFIG_PM
		.suspend = typhoon_suspend,
		.resume = typhoon_resume,
		.enable_wake = typhoon_enable_wake,
		#endif
		};

drivers/net/wireless/hostap/hostap_pci.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -453,8 +453,6 @@ static struct pci_driver prism2_pci_drv_id = {
		.suspend = prism2_pci_suspend,
		.resume = prism2_pci_resume,
		#endif /* CONFIG_PM */
		/* Linux 2.4.6 added save_state and enable_wake that are not used here
		*/
		};

drivers/net/wireless/hostap/hostap_plx.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -613,9 +613,6 @@ static struct pci_driver prism2_plx_drv_id = {
		.id_table = prism2_plx_id_table,
		.probe = prism2_plx_probe,
		.remove = prism2_plx_remove,
		.suspend = NULL,
		.resume = NULL,
		.enable_wake = NULL
		};

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