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watchdog: cdns: Add comment for expire_now function

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IP itself has no reg/no bit which can be used for this functionality.
Add this note to the driver to make sure that none will be asking for
that. Current method is to setup 1s timeout and hang() which is done via
wdt_expire_now().

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek 2018-07-16 13:34:55 +02:00
parent 28a961aa0b
commit 6c253be7ce
1 changed files with 1 additions and 0 deletions
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1
drivers/watchdog/cdns_wdt.c
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@ -251,6 +251,7 @@ static const struct wdt_ops cdns_wdt_ops = {
.start = cdns_wdt_start,
.reset = cdns_wdt_reset,
.stop = cdns_wdt_stop,
/* There is no bit/reg/support in IP for expire_now functionality */
};
static const struct udevice_id cdns_wdt_ids[] = {