From patchwork Tue Jun 23 15:43:58 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [3/3] sata_mv: add power management support for the platform driver Date: Tue, 23 Jun 2009 05:43:58 -0000 From: Saeed Bishara X-Patchwork-Id: 29082 Message-Id: <1245771838-1332-3-git-send-email-saeed@marvell.com> To: linux-ide@vger.kernel.org, liml@rtr.ca Cc: saeed.bishara@gmail.com, Saeed Bishara Signed-off-by: Saeed Bishara --- drivers/ata/sata_mv.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 42 insertions(+), 0 deletions(-) diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index ca9157d..6723a9a 100755 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -4087,9 +4087,51 @@ 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); + 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,