[PATCH] ata/pata_arasan_cf: Add Hibernation support
From: Viresh Kumar <hidden>
Date: 2012-02-23 09:45:15
Subsystem:
libata pata arasan compact flash controller, libata subsystem (serial and parallel ata drivers), the rest · Maintainers:
Viresh Kumar, Damien Le Moal, Niklas Cassel, Linus Torvalds
This patch adds in Hibernation related callbacks. Also we don't really need to free DMA channel on suspend. Signed-off-by: Viresh Kumar <redacted> --- drivers/ata/pata_arasan_cf.c | 12 ++++-------- 1 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 048589f..fc2db2a 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c@@ -925,11 +925,10 @@ static int arasan_cf_suspend(struct device *dev) struct ata_host *host = dev_get_drvdata(dev); struct arasan_cf_dev *acdev = host->ports[0]->private_data; - if (acdev->dma_chan) { + if (acdev->dma_chan) acdev->dma_chan->device->device_control(acdev->dma_chan, DMA_TERMINATE_ALL, 0); - dma_release_channel(acdev->dma_chan); - } + cf_exit(acdev); return ata_host_suspend(host, PMSG_SUSPEND); }
@@ -945,10 +944,7 @@ static int arasan_cf_resume(struct device *dev) return 0; } -static const struct dev_pm_ops arasan_cf_pm_ops = { - .suspend = arasan_cf_suspend, - .resume = arasan_cf_resume, -}; +static SIMPLE_DEV_PM_OPS(arasan_cf_pm_ops, arasan_cf_suspend, arasan_cf_resume); #endif static struct platform_driver arasan_cf_driver = {
@@ -958,7 +954,7 @@ static struct platform_driver arasan_cf_driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, #ifdef CONFIG_PM - .pm = &arasan_cf_pm_ops, + .pm = &arasan_cf_pm_ops, #endif }, };
--
1.7.8.110.g4cb5d