From a6a1bcd3700a792d89999a7ec89a9303534ccefc Mon Sep 17 00:00:00 2001
From: Joachim Eastwood <manabian@gmail.com>
Date: Thu, 14 Feb 2013 23:02:29 +0100
Subject: [PATCH] watchdog: at91rm9200: add DT support
Add DT support for at91rm9200_wdt.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
.../bindings/watchdog/atmel-at91rm9200-wdt.txt | 9 +++++++++
drivers/watchdog/Kconfig | 2 +-
drivers/watchdog/at91rm9200_wdt.c | 9 +++++++++
3 files changed, 19 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/watchdog/atmel-at91rm9200-wdt.txt
diff --git a/Documentation/devicetree/bindings/watchdog/atmel-at91rm9200-wdt.txt b/Documentation/devicetree/bindings/watchdog/atmel-at91rm9200-wdt.txt
new file mode 100644
index 0000000000000..d4d86cf8f9ebb
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/atmel-at91rm9200-wdt.txt
@@ -0,0 +1,9 @@
+Atmel AT91RM9200 System Timer Watchdog
+
+Required properties:
+- compatible: must be "atmel,at91sam9260-wdt".
+
+Example:
+ watchdog@fffffd00 {
+ compatible = "atmel,at91rm9200-wdt";
+ };
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 83ac1f7ac32c9..0374e0edb9239 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -117,7 +117,7 @@ config ARM_SP805_WATCHDOG
config AT91RM9200_WATCHDOG
tristate "AT91RM9200 watchdog"
- depends on ARCH_AT91RM9200
+ depends on ARCH_AT91
help
Watchdog timer embedded into AT91RM9200 chips. This will reboot your
system when the timeout is reached.
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index 89831ed24a4ff..1c75260b987c1 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -24,6 +24,8 @@
#include <linux/types.h>
#include <linux/watchdog.h>
#include <linux/uaccess.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
#include <mach/at91_st.h>
#define WDT_DEFAULT_TIME 5 /* seconds */
@@ -252,6 +254,12 @@ static int at91wdt_resume(struct platform_device *pdev)
#define at91wdt_resume NULL
#endif
+static const struct of_device_id at91_wdt_dt_ids[] = {
+ { .compatible = "atmel,at91rm9200-wdt" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, at91_wdt_dt_ids);
+
static struct platform_driver at91wdt_driver = {
.probe = at91wdt_probe,
.remove = at91wdt_remove,
@@ -261,6 +269,7 @@ static struct platform_driver at91wdt_driver = {
.driver = {
.name = "at91_wdt",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(at91_wdt_dt_ids),
},
};
--
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