Commit d6ecf158 authored by Thomas Petazzoni's avatar Thomas Petazzoni Committed by Tejun Heo
Browse files

ata: ahci_mvebu: add suspend/resume support

This commit adds suspend/resume support to the ahci_mvebu driver. The
suspend hook doesn't do anything special despite calling the generic
ahci_platform_suspend_host() function. However, the resume hook has to
restore the MBus windows configuration, as well as the regret option.

Tested on Marvell Armada 388 GP.
Signed-off-by: default avatarThomas Petazzoni <>
Signed-off-by: default avatarTejun Heo <>
parent 34c56932
......@@ -62,6 +62,26 @@ static void ahci_mvebu_regret_option(struct ahci_host_priv *hpriv)
writel(0x80, hpriv->mmio + AHCI_VENDOR_SPECIFIC_0_DATA);
static int ahci_mvebu_suspend(struct platform_device *pdev, pm_message_t state)
return ahci_platform_suspend_host(&pdev->dev);
static int ahci_mvebu_resume(struct platform_device *pdev)
struct ata_host *host = platform_get_drvdata(pdev);
struct ahci_host_priv *hpriv = host->private_data;
const struct mbus_dram_target_info *dram;
dram = mv_mbus_dram_info();
if (dram)
ahci_mvebu_mbus_config(hpriv, dram);
return ahci_platform_resume_host(&pdev->dev);
static const struct ata_port_info ahci_mvebu_port_info = {
.pio_mask = ATA_PIO4,
......@@ -120,6 +140,8 @@ MODULE_DEVICE_TABLE(of, ahci_mvebu_of_match);
static struct platform_driver ahci_mvebu_driver = {
.probe = ahci_mvebu_probe,
.remove = ata_platform_remove_one,
.suspend = ahci_mvebu_suspend,
.resume = ahci_mvebu_resume,
.driver = {
.name = DRV_NAME,
.of_match_table = ahci_mvebu_of_match,
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