ahci: Use dev_info() to inform about the lack of Device Sleep support

According to the Serial ATA AHCI specification, Device Sleep is an
optional feature and as such no errors should be printed if it's
missing. Keep informing users, but use dev_info() instead of dev_err().

Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 97683e45ab043be5045ae22945a5520e845cfe4f..61a9c07e0dff5b277dba35cfa135bac449f9ce84 100644 (file)
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -2003,7 +2003,7 @@ static void ahci_set_aggressive_devslp(struct ata_port *ap, bool sleep)
 
        devslp = readl(port_mmio + PORT_DEVSLP);
        if (!(devslp & PORT_DEVSLP_DSP)) {
-               dev_err(ap->host->dev, "port does not support device sleep\n");
+               dev_info(ap->host->dev, "port does not support device sleep\n");
                return;
        }