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Subject[PATCH 1/5] agp/efficeon: Convert to generic power management
Date
From: Bjorn Helgaas <bhelgaas@google.com>

Convert agpgart-efficeon from legacy PCI power management to the generic
power management framework.

Previously agpgart-efficeon used legacy PCI power management, which means
agp_efficeon_suspend() and agp_efficeon_resume() were responsible for both
device-specific things and generic PCI things like saving and restoring
config space and managing power state.

In this case, agp_efficeon_suspend() was empty, and agp_efficeon_resume()
already did only device-specific things, so the conversion is trivial.

Based on 0aeddbd0cb07 ("via-agp: convert to generic power management") by
Vaibhav Gupta <vaibhavgupta40@gmail.com>.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/char/agp/efficeon-agp.c | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c
index c53f0f9ef5b0..7cf2c9b0bb02 100644
--- a/drivers/char/agp/efficeon-agp.c
+++ b/drivers/char/agp/efficeon-agp.c
@@ -412,18 +412,11 @@ static void agp_efficeon_remove(struct pci_dev *pdev)
agp_put_bridge(bridge);
}

-#ifdef CONFIG_PM
-static int agp_efficeon_suspend(struct pci_dev *dev, pm_message_t state)
-{
- return 0;
-}
-
-static int agp_efficeon_resume(struct pci_dev *pdev)
+static int __maybe_unused agp_efficeon_resume(struct device *dev)
{
printk(KERN_DEBUG PFX "agp_efficeon_resume()\n");
return efficeon_configure();
}
-#endif

static const struct pci_device_id agp_efficeon_pci_table[] = {
{
@@ -437,6 +430,8 @@ static const struct pci_device_id agp_efficeon_pci_table[] = {
{ }
};

+static SIMPLE_DEV_PM_OPS(agp_efficeon_pm_ops, NULL, agp_efficeon_resume);
+
MODULE_DEVICE_TABLE(pci, agp_efficeon_pci_table);

static struct pci_driver agp_efficeon_pci_driver = {
@@ -444,10 +439,7 @@ static struct pci_driver agp_efficeon_pci_driver = {
.id_table = agp_efficeon_pci_table,
.probe = agp_efficeon_probe,
.remove = agp_efficeon_remove,
-#ifdef CONFIG_PM
- .suspend = agp_efficeon_suspend,
- .resume = agp_efficeon_resume,
-#endif
+ .driver.pm = &agp_efficeon_pm_ops,
};

static int __init agp_efficeon_init(void)
--
2.25.1
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