watchdog: of_xilinx_wdt: Add comment to spinlock

Based on checkpatch every spinlock should be documented.
The patch is fixing this issue:
./scripts/checkpatch.pl --strict -f drivers/watchdog/of_xilinx_wdt.c
CHECK: spinlock_t definition without comment
+	spinlock_t spinlock;

Signed-off-by: Srinivas Goud <srinivas.goud@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>

diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index d3f7eb0466782f4b386895cf509c54213a31819d..f3bea9ef8e671431a55f6caa6d895a633557b307 100644 (file)
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -40,7 +40,7 @@
 struct xwdt_device {
        void __iomem *base;
        u32 wdt_interval;
-       spinlock_t spinlock;
+       spinlock_t spinlock; /* spinlock for register handling */
        struct watchdog_device xilinx_wdt_wdd;
        struct clk              *clk;
 };