watchdog: xilinx: Remove no_timeout variable
Remove no_timeout variable and check variables
directly.
Suggested-by: Rob Herring <robherring2@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index 97370f6..57ccae8 100644
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -146,10 +146,9 @@
static int xwdt_probe(struct platform_device *pdev)
{
int rc;
- u32 pfreq, enable_once = 0;
+ u32 pfreq = 0, enable_once = 0;
struct resource *res;
struct xwdt_device *xdev;
- bool no_timeout = false;
struct watchdog_device *xilinx_wdt_wdd;
xdev = devm_kzalloc(&pdev->dev, sizeof(*xdev), GFP_KERNEL);
@@ -167,19 +166,15 @@
return PTR_ERR(xdev->base);
rc = of_property_read_u32(pdev->dev.of_node, "clock-frequency", &pfreq);
- if (rc) {
+ if (rc)
dev_warn(&pdev->dev,
"The watchdog clock frequency cannot be obtained\n");
- no_timeout = true;
- }
rc = of_property_read_u32(pdev->dev.of_node, "xlnx,wdt-interval",
&xdev->wdt_interval);
- if (rc) {
+ if (rc)
dev_warn(&pdev->dev,
"Parameter \"xlnx,wdt-interval\" not found\n");
- no_timeout = true;
- }
rc = of_property_read_u32(pdev->dev.of_node, "xlnx,wdt-enable-once",
&enable_once);
@@ -193,7 +188,7 @@
* Twice of the 2^wdt_interval / freq because the first wdt overflow is
* ignored (interrupt), reset is only generated at second wdt overflow
*/
- if (!no_timeout)
+ if (pfreq && xdev->wdt_interval)
xilinx_wdt_wdd->timeout = 2 * ((1 << xdev->wdt_interval) /
pfreq);