[PATCH v2 08/12] fbdev: cyber2000fb: use generic power management
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STALE2243d
From: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Date: 2020-08-10 19:00:24
Also in:
dri-devel, linux-arm-kernel, linux-kernel-mentees, lkml
Subsystem:
cyberpro fb driver, framebuffer layer, the rest · Maintainers:
Russell King, Helge Deller, Linus Torvalds
Revision v2 of 3 in this series.
Revisions (3)
- v1 [diff vs current]
- v2 current
- v3 [diff vs current]
Drivers should do only device-specific jobs. But in general, drivers using legacy PCI PM framework for .suspend()/.resume() have to manage many PCI PM-related tasks themselves which can be done by PCI Core itself. This brings extra load on the driver and it directly calls PCI helper functions to handle them. Although the cyber2000fb driver does not have that extra load, we should switch to the new generic framework by updating function signatures and define a "struct dev_pm_ops" variable to bind PM callbacks so that we can remove the legacy .suspend & .resume bindings. Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com> --- drivers/video/fbdev/cyber2000fb.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/video/fbdev/cyber2000fb.c b/drivers/video/fbdev/cyber2000fb.c
index 42d37bed518a..d45355b9a58c 100644
--- a/drivers/video/fbdev/cyber2000fb.c
+++ b/drivers/video/fbdev/cyber2000fb.c@@ -1810,7 +1810,7 @@ static void cyberpro_pci_remove(struct pci_dev *dev) } } -static int cyberpro_pci_suspend(struct pci_dev *dev, pm_message_t state) +static int __maybe_unused cyberpro_pci_suspend(struct device *dev) { return 0; }
@@ -1818,9 +1818,9 @@ static int cyberpro_pci_suspend(struct pci_dev *dev, pm_message_t state) /* * Re-initialise the CyberPro hardware */ -static int cyberpro_pci_resume(struct pci_dev *dev) +static int __maybe_unused cyberpro_pci_resume(struct device *dev) { - struct cfb_info *cfb = pci_get_drvdata(dev); + struct cfb_info *cfb = dev_get_drvdata(dev); if (cfb) { cyberpro_pci_enable_mmio(cfb);
@@ -1846,12 +1846,15 @@ static struct pci_device_id cyberpro_pci_table[] = { MODULE_DEVICE_TABLE(pci, cyberpro_pci_table); +static SIMPLE_DEV_PM_OPS(cyberpro_pci_pm_ops, + cyberpro_pci_suspend, + cyberpro_pci_resume); + static struct pci_driver cyberpro_driver = { .name = "CyberPro", .probe = cyberpro_pci_probe, .remove = cyberpro_pci_remove, - .suspend = cyberpro_pci_suspend, - .resume = cyberpro_pci_resume, + .driver.pm = &cyberpro_pci_pm_ops, .id_table = cyberpro_pci_table };
--
2.27.0