watchdog: iTCO_wdt: cleanup set/unset no_reboot_bit functions
iTCO_wdt no_reboot_bit set/unset functions has lot of common code between them. So merging these two functions into a single update function would remove these unnecessary code duplications. This patch fixes this issue by creating a no_reboot_bit update function to handle both set/unset functions. Also checking for iTCO version every time you make no_reboot_bit set/unset call is inefficient and makes the code look complex. This can be improved by performing this check once during device probe and selecting the appropriate no_reboot_bit update function. This patch fixes this issue by splitting the update function into multiple helper functions. Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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