spi/hspi: add device tree support

Commit Message

Kuninori Morimoto Oct. 25, 2013, 4:53 a.m. UTC

Support for loading the Renesas HSPI driver via devicetree.

Signed-off-by: Kuninori Morimoto <[e-mail]>
---
 Documentation/devicetree/bindings/spi/sh-hspi.txt |    7 +++++++
 drivers/spi/spi-sh-hspi.c                         |    8 ++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/sh-hspi.txt

Patch

diff --git a/Documentation/devicetree/bindings/spi/sh-hspi.txt b/Documentation/devicetree/bindings/spi/sh-hspi.txt
new file mode 100644
index 0000000..30b57b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/sh-hspi.txt
@@ -0,0 +1,7 @@ 
+Renesas HSPI.
+
+Required properties:
+- compatible : 	"renesas,hspi"
+- reg : Offset and length of the register set for the device
+- interrupts : interrupt line used by HSPI
+
diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index e488a90..47acb20 100644
--- a/drivers/spi/spi-sh-hspi.c
+++ b/drivers/spi/spi-sh-hspi.c
@@ -303,6 +303,7 @@  static int hspi_probe(struct platform_device *pdev)
 	master->setup		= hspi_setup;
 	master->cleanup		= hspi_cleanup;
 	master->mode_bits	= SPI_CPOL | SPI_CPHA;
+	master->dev.of_node	= pdev->dev.of_node;
 	master->auto_runtime_pm = true;
 	master->transfer_one_message		= hspi_transfer_one_message;
 	ret = spi_register_master(master);
@@ -333,12 +334,19 @@  static int hspi_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static struct of_device_id hspi_of_match[] = {
+	{ .compatible = "renesas,hspi", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, hspi_of_match);
+
 static struct platform_driver hspi_driver = {
 	.probe = hspi_probe,
 	.remove = hspi_remove,
 	.driver = {
 		.name = "sh-hspi",
 		.owner = THIS_MODULE,
+		.of_match_table = hspi_of_match,
 	},
 };
 module_platform_driver(hspi_driver);