On 02/18/2018 04:07 PM, Rob Herring wrote:
On Sun, Feb 11, 2018 at 09:08:43PM +0100, Marcus Folkesson wrote:
watchdog_init_timeout() will allways pick timeout_param since it
defaults to a valid timeout.
By following best practice described in
Documentation/watchdog/watchdog-kernel-api.txt, it also
let us to set timout-sec property in devicetree.
typo
Signed-off-by: Marcus Folkesson <marcus.folkesson@xxxxxxxxx>
Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt | 4 ++++
drivers/watchdog/sirfsoc_wdt.c | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt b/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt
index 9cbc76c89b2b..0dce5e3100b4 100644
--- a/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt
@@ -5,10 +5,14 @@ Required properties:
- reg: Address range of tick timer/WDT register set
- interrupts: interrupt number to the cpu
+Optional properties:
+- timeout-sec : Contains the watchdog timeout in seconds
+
Example:
timer@b0020000 {
compatible = "sirf,prima2-tick";
reg = <0xb0020000 0x1000>;
interrupts = <0>;
+ timeout-sec = <30>;
};
diff --git a/drivers/watchdog/sirfsoc_wdt.c b/drivers/watchdog/sirfsoc_wdt.c
index 4eea351e09b0..ac0c9d2c4aee 100644
--- a/drivers/watchdog/sirfsoc_wdt.c
+++ b/drivers/watchdog/sirfsoc_wdt.c
@@ -29,7 +29,7 @@
#define SIRFSOC_WDT_MAX_TIMEOUT (10 * 60) /* 10 mins */
#define SIRFSOC_WDT_DEFAULT_TIMEOUT 30 /* 30 secs */
-static unsigned int timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT;
+static unsigned int timeout;
If you have an old dtb, then you still need the default.
No. It is optional to start with, and the driver already has
static struct watchdog_device sirfsoc_wdd = {
.info = &sirfsoc_wdt_ident,
.ops = &sirfsoc_wdt_ops,
.timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT, <------
.min_timeout = SIRFSOC_WDT_MIN_TIMEOUT,
.max_timeout = SIRFSOC_WDT_MAX_TIMEOUT,
};
Guenter
static bool nowayout = WATCHDOG_NOWAYOUT;
module_param(timeout, uint, 0);
--
2.15.1
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