linux-kernel - [PATCH] ahci: add DT binding for Calxeda AHCI controller

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Message-Id: <1314976215-23902-1-git-send-email-robherring2@gmail.com>
Date:	Fri,  2 Sep 2011 10:10:15 -0500
From:	Rob Herring <robherring2@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	Rob Herring <rob.herring@...xeda.com>,
	Jeff Garzik <jgarzik@...ox.com>, linux-kernel@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org
Subject: [PATCH] ahci: add DT binding for Calxeda AHCI controller

From: Rob Herring <rob.herring@...xeda.com>

Add devicetree match table to ahci platform driver for Calxeda Highbank
AHCI controller.

Signed-off-by: Rob Herring <rob.herring@...xeda.com>
Cc: Jeff Garzik <jgarzik@...ox.com>
Cc: linux-ide@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: devicetree-discuss@...ts.ozlabs.org
---
 .../devicetree/bindings/ata/calxeda-sata.txt       |   17 +++++++++++++++++
 drivers/ata/ahci_platform.c                        |    7 +++++++
 2 files changed, 24 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/ata/calxeda-sata.txt

diff --git a/Documentation/devicetree/bindings/ata/calxeda-sata.txt b/Documentation/devicetree/bindings/ata/calxeda-sata.txt
new file mode 100644
index 0000000..79caa56
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/calxeda-sata.txt
@@ -0,0 +1,17 @@
+* Calxeda SATA Controller
+
+SATA nodes are defined to describe on-chip Serial ATA controllers.
+Each SATA controller should have its own node.
+
+Required properties:
+- compatible        : compatible list, contains "calxeda,hb-ahci"
+- interrupts        : <interrupt mapping for SATA IRQ>
+- reg               : <registers mapping>
+
+Example:
+        sata@...08000 {
+		compatible = "calxeda,hb-ahci";
+                reg = <0xffe08000 0x1000>;
+                interrupts = <115>;
+        };
+
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 6fef1fa..9bfc970 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -171,11 +171,18 @@ static int __devexit ahci_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id ahci_of_match[] = {
+	{ .compatible = "calxeda,hb-ahci", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, ahci_of_match);
+
 static struct platform_driver ahci_driver = {
 	.remove = __devexit_p(ahci_remove),
 	.driver = {
 		.name = "ahci",
 		.owner = THIS_MODULE,
+		.of_match_table = ahci_of_match,
 	},
 };
 
-- 
1.7.5.4

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