thermal: rcar: add Device Tree support

Support for loading the Renesas R-Car thermal module via devicetree.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

2 files changed, 36 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/thermal/rcar-thermal.txt b/Documentation/devicetree/bindings/thermal/rcar-thermal.txt
new file mode 100644
index 000000000000..28ef498a66e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/rcar-thermal.txt
@@ -0,0 +1,29 @@
+* Renesas R-Car Thermal
+
+Required properties:
+- compatible            : "renesas,rcar-thermal"
+- reg                   : Address range of the thermal registers.
+                          The 1st reg will be recognized as common register
+                          if it has "interrupts".
+
+Option properties:
+
+- interrupts            : use interrupt
+
+Example (non interrupt support):
+
+thermal@e61f0100 {
+        compatible = "renesas,rcar-thermal";
+        reg = <0xe61f0100 0x38>;
+};
+
+Example (interrupt support):
+
+thermal@e61f0000 {
+        compatible = "renesas,rcar-thermal";
+        reg = <0xe61f0000 0x14
+                0xe61f0100 0x38
+                0xe61f0200 0x38
+                0xe61f0300 0x38>;
+        interrupts = <0 69 4>;
+};
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 2eebcadb4c99..909bb4bb837f 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -476,9 +476,16 @@ static int rcar_thermal_remove(struct platform_device *pdev)
         return 0;
 }
 
+static const struct of_device_id rcar_thermal_dt_ids[] __devinitconst = {
+        { .compatible = "renesas,rcar-thermal", },
+        {},
+};
+MODULE_DEVICE_TABLE(of, rcar_thermal_dt_ids);
+
 static struct platform_driver rcar_thermal_driver = {
         .driver = {
                 .name   = "rcar_thermal",
+                .of_match_table = rcar_thermal_dt_ids,
         },
         .probe          = rcar_thermal_probe,
         .remove         = rcar_thermal_remove,