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| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2006-09-21 23:16:48 +0200 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-09-22 10:26:56 +0100 |
| commit | 17c2dae3aaff9b1e5d83996a5f098ad693f3aeca (patch) | |
| tree | e2d35bb9f404a84761b2641309b22881a4672e7e | |
| parent | 25f0c659fe64832d8ee06aa623fffaad708dcf8b (diff) | |
| download | linux-3.10-17c2dae3aaff9b1e5d83996a5f098ad693f3aeca.tar.gz linux-3.10-17c2dae3aaff9b1e5d83996a5f098ad693f3aeca.tar.bz2 linux-3.10-17c2dae3aaff9b1e5d83996a5f098ad693f3aeca.zip | |
[MTD] physmap: add power management support
Implement PM handling for physmap. Idea from Steven Scholz, patch
by David Anders.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| -rw-r--r-- | drivers/mtd/maps/physmap.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 7799a25a7f2..bc7cc71788b 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -158,9 +158,42 @@ err_out: return err; } +#ifdef CONFIG_PM +static int physmap_flash_suspend(struct platform_device *dev, pm_message_t state) +{ + struct physmap_flash_info *info = platform_get_drvdata(dev); + int ret = 0; + + if (info) + ret = info->mtd->suspend(info->mtd); + + return ret; +} + +static int physmap_flash_resume(struct platform_device *dev) +{ + struct physmap_flash_info *info = platform_get_drvdata(dev); + if (info) + info->mtd->resume(info->mtd); + return 0; +} + +static void physmap_flash_shutdown(struct platform_device *dev) +{ + struct physmap_flash_info *info = platform_get_drvdata(dev); + if (info && info->mtd->suspend(info->mtd) == 0) + info->mtd->resume(info->mtd); +} +#endif + static struct platform_driver physmap_flash_driver = { .probe = physmap_flash_probe, .remove = physmap_flash_remove, +#ifdef CONFIG_PM + .suspend = physmap_flash_suspend, + .resume = physmap_flash_resume, + .shutdown = physmap_flash_shutdown, +#endif .driver = { .name = "physmap-flash", }, |