linux-kernel - [PATCH 2/4] ata: ahci_brcmstb: disable DIPM support

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Message-Id: <1452211413-1350-3-git-send-email-f.fainelli@gmail.com>
Date:	Thu,  7 Jan 2016 16:03:31 -0800
From:	Florian Fainelli <f.fainelli@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	bcm-kernel-feedback-list@...adcom.com, computersforpeace@...il.com,
	gregory.0xf0@...il.com, Danesh Petigara <dpetigara@...adcom.com>,
	Florian Fainelli <f.fainelli@...il.com>
Subject: [PATCH 2/4] ata: ahci_brcmstb: disable DIPM support

From: Danesh Petigara <dpetigara@...adcom.com>

The Broadcom STB SATA host controller does not support device
initiated power management. Disable support for this feature
so the driver never sends SETFEATURES commands to the device
to enable/disable DIPM.

Signed-off-by: Danesh Petigara <dpetigara@...adcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/ata/ahci_brcmstb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/ahci_brcmstb.c b/drivers/ata/ahci_brcmstb.c
index f38a07ea59f4..f51e3d9ba86e 100644
--- a/drivers/ata/ahci_brcmstb.c
+++ b/drivers/ata/ahci_brcmstb.c
@@ -84,7 +84,7 @@ struct brcm_ahci_priv {
 };
 
 static const struct ata_port_info ahci_brcm_port_info = {
-	.flags		= AHCI_FLAG_COMMON,
+	.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
 	.pio_mask	= ATA_PIO4,
 	.udma_mask	= ATA_UDMA6,
 	.port_ops	= &ahci_platform_ops,
-- 
2.1.0