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Subject[PATCH v2 7/7] watchdog: coh901327: make use of timeout-secs provided in devicetree
Date
watchdog_init_timeout() will allways pick timeout_param since it
defaults to a valid timeout.

Following best practice described in
Documentation/watchdog/watchdog-kernel-api.txt to make use of
the parameter logic.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
---

v2:
- Set .timeout in coh901327_wdt structure declaration.
- Set .min_timeout to 1 instead of 0. I could not find a datasheet
for coh901327, so I'm not sure if 0 is valid. However, 0 seems
wrong to me and most driver has 1 as min value. If it should
be 0, please let me know and I have to set another initial
value for margin.

drivers/watchdog/coh901327_wdt.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c
index 4410337f4f7f..5d8eb9a30879 100644
--- a/drivers/watchdog/coh901327_wdt.c
+++ b/drivers/watchdog/coh901327_wdt.c
@@ -67,7 +67,9 @@
#define U300_WDOG_IFR_WILL_BARK_IRQ_FORCE_ENABLE 0x0001U

/* Default timeout in seconds = 1 minute */
-static unsigned int margin = 60;
+#define U300_WDOG_DEFAULT_TIMEOUT 60
+
+static unsigned int margin;
static int irq;
static void __iomem *virtbase;
static struct device *parent;
@@ -235,8 +237,9 @@ static struct watchdog_device coh901327_wdt = {
* timeout register is max
* 0x7FFF = 327670ms ~= 327s.
*/
- .min_timeout = 0,
+ .min_timeout = 1,
.max_timeout = 327,
+ .timeout = U300_WDOG_DEFAULT_TIMEOUT,
};

static int __exit coh901327_remove(struct platform_device *pdev)
@@ -315,9 +318,7 @@ static int __init coh901327_probe(struct platform_device *pdev)
goto out_no_irq;
}

- ret = watchdog_init_timeout(&coh901327_wdt, margin, dev);
- if (ret < 0)
- coh901327_wdt.timeout = 60;
+ watchdog_init_timeout(&coh901327_wdt, margin, dev);

coh901327_wdt.parent = dev;
ret = watchdog_register_device(&coh901327_wdt);
--
2.15.1
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