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| author | Saeed Bishara <saeed@marvell.com> | 2009-12-06 18:26:19 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2009-12-17 00:56:59 -0500 |
| commit | 6481f2b52cd5411ea6342b749daf0e4f3b390d7b (patch) | |
| tree | 7ce843a328f536eaaa8ee475107dc9108646470b /drivers/ata/sata_mv.c | |
| parent | c77a2f4e6b76c9094182dfa653ece4243f6df80c (diff) | |
| download | linux-6481f2b52cd5411ea6342b749daf0e4f3b390d7b.tar.gz linux-6481f2b52cd5411ea6342b749daf0e4f3b390d7b.tar.bz2 linux-6481f2b52cd5411ea6342b749daf0e4f3b390d7b.zip | |
sata_mv: add power management support for the platform driver
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/sata_mv.c')
| -rwxr-xr-x[-rw-r--r--] | drivers/ata/sata_mv.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index b625b3614989..0f7704c0b4cc 100644..100755 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -4112,9 +4112,52 @@ static int __devexit mv_platform_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int mv_platform_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct ata_host *host = dev_get_drvdata(&pdev->dev); + if (host) + return ata_host_suspend(host, state); + else + return 0; +} + +static int mv_platform_resume(struct platform_device *pdev) +{ + struct ata_host *host = dev_get_drvdata(&pdev->dev); + int ret; + + if (host) { + struct mv_host_priv *hpriv = host->private_data; + const struct mv_sata_platform_data *mv_platform_data = \ + pdev->dev.platform_data; + /* + * (Re-)program MBUS remapping windows if we are asked to. + */ + if (mv_platform_data->dram != NULL) + mv_conf_mbus_windows(hpriv, mv_platform_data->dram); + + /* initialize adapter */ + ret = mv_init_host(host, chip_soc); + if (ret) { + printk(KERN_ERR DRV_NAME ": Error during HW init\n"); + return ret; + } + ata_host_resume(host); + } + + return 0; +} +#else +#define mv_platform_suspend NULL +#define mv_platform_resume NULL +#endif + static struct platform_driver mv_platform_driver = { .probe = mv_platform_probe, .remove = __devexit_p(mv_platform_remove), + .suspend = mv_platform_suspend, + .resume = mv_platform_resume, .driver = { .name = DRV_NAME, .owner = THIS_MODULE, |