[1/2] sata_rcar: Adjust and document device tree bindings

Commit Message

Valentine Barshak Oct. 16, 2013, 12:06 p.m. UTC

This deprecates the "rcar-sata" compatibility string
and adds the "sata-r8a7779" which complies to the
preferred <unit>-<soc> format for SH-Mobile devices.
The DT bindings are documented.

Signed-off-by: Valentine Barshak <[e-mail]>
---
 Documentation/devicetree/bindings/ata/sata_rcar.txt | 15 +++++++++++++++
 drivers/ata/sata_rcar.c                             |  3 ++-
 2 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/ata/sata_rcar.txt

Patch

diff --git a/Documentation/devicetree/bindings/ata/sata_rcar.txt b/Documentation/devicetree/bindings/ata/sata_rcar.txt
new file mode 100644
index 0000000..0719115
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/sata_rcar.txt
@@ -0,0 +1,15 @@ 
+* Renesas R-Car SATA
+
+Required properties:
+- compatible		: should contain "renesas,sata-r8a7779";
+- reg			: offset and length of the SATA registers;
+- interrupts		: must consist of one interrupt specifier.
+
+Example:
+
+sata: sata@fc600000 {
+	compatible = "renesas,sata-r8a7779";
+	reg = <0xfc600000 0x2000>;
+	interrupt-parent = <&gic>;
+	interrupts = <0 100 0x4>;
+};
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index c2d95e9..a625cc5 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -893,7 +893,8 @@  static const struct dev_pm_ops sata_rcar_pm_ops = {
 #endif
 
 static struct of_device_id sata_rcar_match[] = {
-	{ .compatible = "renesas,rcar-sata", },
+	{ .compatible = "renesas,rcar-sata", },	/* Deprecated */
+	{ .compatible = "renesas,sata-r8a7779", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, sata_rcar_match);