1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 6bd4f660b4e1..b9861453fc81 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -452,6 +452,13 @@ void ahci_save_initial_config(struct device *dev,
                 cap &= ~HOST_CAP_SNTF;
         }
 
+        if ((cap2 & HOST_CAP2_SDS) && (hpriv->flags & AHCI_HFLAG_NO_DEVSLP)) {
+                dev_info(dev,
+                         "controller can't do DEVSLP, turning off\n");
+                cap2 &= ~HOST_CAP2_SDS;
+                cap2 &= ~HOST_CAP2_SADM;
+        }
+
         if (!(cap & HOST_CAP_FBS) && (hpriv->flags & AHCI_HFLAG_YES_FBS)) {
                 dev_info(dev, "controller can do FBS, turning on CAP_FBS\n");
                 cap |= HOST_CAP_FBS;