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| /openbmc/linux/drivers/rtc/ |
| H A D | rtc-pcf2127.c | diff 0e735eaae1650a2e26835cc776f496e06a87be9f Thu Aug 22 08:19:35 CDT 2019 Bruno Thomsen <bruno.thomsen@gmail.com> rtc: pcf2127: add watchdog feature support
Add partial support for the watchdog functionality of
both PCF2127 and PCF2129 chips.
The programmable watchdog timer is currently using a fixed
clock source of 1Hz. This result in a selectable range of
1-255 seconds, which covers most embedded Linux use-cases.
Clock sources of 4096Hz, 64Hz and 1/60Hz is mostly useful
in MCU use-cases.
Countdown timer not available when using watchdog feature.
Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20190822131936.18772-4-bruno.thomsen@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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| H A D | Kconfig | diff 0e735eaae1650a2e26835cc776f496e06a87be9f Thu Aug 22 08:19:35 CDT 2019 Bruno Thomsen <bruno.thomsen@gmail.com> rtc: pcf2127: add watchdog feature support
Add partial support for the watchdog functionality of
both PCF2127 and PCF2129 chips.
The programmable watchdog timer is currently using a fixed
clock source of 1Hz. This result in a selectable range of
1-255 seconds, which covers most embedded Linux use-cases.
Clock sources of 4096Hz, 64Hz and 1/60Hz is mostly useful
in MCU use-cases.
Countdown timer not available when using watchdog feature.
Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20190822131936.18772-4-bruno.thomsen@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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