These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / ata / ahci_mvebu.c

diff --git a/kernel/drivers/ata/ahci_mvebu.c b/kernel/drivers/ata/ahci_mvebu.c
index 5928d07..f7a7fa8 100644 (file)
--- a/kernel/drivers/ata/ahci_mvebu.c
+++ b/kernel/drivers/ata/ahci_mvebu.c
@@ -62,6 +62,31 @@ static void ahci_mvebu_regret_option(struct ahci_host_priv *hpriv)
        writel(0x80, hpriv->mmio + AHCI_VENDOR_SPECIFIC_0_DATA);
 }
 
+#ifdef CONFIG_PM_SLEEP
+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);
+
+       ahci_mvebu_regret_option(hpriv);
+
+       return ahci_platform_resume_host(&pdev->dev);
+}
+#else
+#define ahci_mvebu_suspend NULL
+#define ahci_mvebu_resume NULL
+#endif
+
 static const struct ata_port_info ahci_mvebu_port_info = {
        .flags     = AHCI_FLAG_COMMON,
        .pio_mask  = ATA_PIO4,
@@ -120,6 +145,8 @@ 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,