From: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Date: Thu, 8 Jan 2015 18:41:34 +0000 (+0100)
Subject: ahci: Use dev_info() to inform about the lack of Device Sleep support
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=95bbbe9a6663635b6cdef20c01c0ea32ec6987e4;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

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 97683e45ab04..61a9c07e0dff 100644
--- 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;
 	}