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authorMichal Simek <michal.simek@xilinx.com>2014-02-12 14:41:25 +0100
committerWim Van Sebroeck <wim@iguana.be>2014-03-31 13:29:31 +0200
commit8d6a140b5f0def8c34d803474780b7b11fe0fab4 (patch)
tree5f351455fc832a30e0824d4597b58f64bcd858cd /drivers/watchdog
parentwatchdog: xilinx: Enable this driver for Zynq (diff)
downloadlinux-8d6a140b5f0def8c34d803474780b7b11fe0fab4.tar.xz
linux-8d6a140b5f0def8c34d803474780b7b11fe0fab4.zip
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>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/of_xilinx_wdt.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index 97370f63897c..57ccae8327ff 100644
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -146,10 +146,9 @@ static u32 xwdt_selftest(struct xwdt_device *xdev)
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 @@ static int xwdt_probe(struct platform_device *pdev)
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 @@ static int xwdt_probe(struct platform_device *pdev)
* 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);