linux-kernel - [PATCH v4 04/12] ata: ahci_mvebu: add support for Armada 3700 variant

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Date:	Tue, 16 Feb 2016 19:14:54 +0100
From:	Gregory CLEMENT <gregory.clement@...e-electrons.com>
To:	Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	arm@...nel.org, Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Jonathan Corbet <corbet@....net>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org,
	Tejun Heo <tj@...nel.org>, Hans de Goede <hdegoede@...hat.com>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	linux-arm-kernel@...ts.infradead.org,
	Lior Amsalem <alior@...vell.com>,
	Nadav Haklai <nadavh@...vell.com>,
	Omri Itach <omrii@...vell.com>
Subject: [PATCH v4 04/12] ata: ahci_mvebu: add support for Armada 3700 variant

From: Lior Amsalem <alior@...vell.com>

The main difference in the new Armada 3700 is that no address
decoding needs to take place in the driver probe.

[gregory.clement@...e-electrons.com: reformulate the commit log]

Signed-off-by: Lior Amsalem <alior@...vell.com>
Reviewed-by: Nadav Haklai <nadavh@...vell.com>
Tested-by: Nadav Haklai <nadavh@...vell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
---
 drivers/ata/ahci_mvebu.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/ahci_mvebu.c b/drivers/ata/ahci_mvebu.c
index f7a7fa81740e..de7128d81e9c 100644
--- a/drivers/ata/ahci_mvebu.c
+++ b/drivers/ata/ahci_mvebu.c
@@ -112,12 +112,15 @@ static int ahci_mvebu_probe(struct platform_device *pdev)
 	if (rc)
 		return rc;
 
-	dram = mv_mbus_dram_info();
-	if (!dram)
-		return -ENODEV;
+	if (of_device_is_compatible(pdev->dev.of_node,
+				    "marvell,armada-380-ahci")) {
+		dram = mv_mbus_dram_info();
+		if (!dram)
+			return -ENODEV;
 
-	ahci_mvebu_mbus_config(hpriv, dram);
-	ahci_mvebu_regret_option(hpriv);
+		ahci_mvebu_mbus_config(hpriv, dram);
+		ahci_mvebu_regret_option(hpriv);
+	}
 
 	rc = ahci_platform_init_host(pdev, hpriv, &ahci_mvebu_port_info,
 				     &ahci_platform_sht);
@@ -133,6 +136,7 @@ disable_resources:
 
 static const struct of_device_id ahci_mvebu_of_match[] = {
 	{ .compatible = "marvell,armada-380-ahci", },
+	{ .compatible = "marvell,armada-3700-ahci", },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, ahci_mvebu_of_match);
-- 
2.5.0