diff options
Diffstat (limited to 'drivers/video/geode/lxfb_core.c')
| -rw-r--r-- | drivers/video/geode/lxfb_core.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/video/geode/lxfb_core.c b/drivers/video/geode/lxfb_core.c index 19eabef1077a..b565882eee37 100644 --- a/drivers/video/geode/lxfb_core.c +++ b/drivers/video/geode/lxfb_core.c @@ -428,6 +428,45 @@ static struct fb_info * __init lxfb_init_fbinfo(struct device *dev) return info; } +#ifdef CONFIG_PM +static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state) +{ + struct fb_info *info = pci_get_drvdata(pdev); + + if (state.event == PM_EVENT_SUSPEND) { + acquire_console_sem(); + lx_powerdown(info); + fb_set_suspend(info, 1); + release_console_sem(); + } + + /* there's no point in setting PCI states; we emulate PCI, so + * we don't end up getting power savings anyways */ + + return 0; +} + +static int lxfb_resume(struct pci_dev *pdev) +{ + struct fb_info *info = pci_get_drvdata(pdev); + int ret; + + acquire_console_sem(); + ret = lx_powerup(info); + if (ret) { + printk(KERN_ERR "lxfb: power up failed!\n"); + return ret; + } + + fb_set_suspend(info, 0); + release_console_sem(); + return 0; +} +#else +#define lxfb_suspend NULL +#define lxfb_resume NULL +#endif + static int __init lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) { @@ -553,6 +592,8 @@ static struct pci_driver lxfb_driver = { .id_table = lxfb_id_table, .probe = lxfb_probe, .remove = lxfb_remove, + .suspend = lxfb_suspend, + .resume = lxfb_resume, }; #ifndef MODULE |