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watchdog: s3c2410: describe driver in KConfig

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Describe better which driver applies to which SoC, to make configuring
kernel for Samsung SoC easier.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210924132930.111443-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Krzysztof Kozlowski 2021-09-24 15:29:30 +02:00 committed by Wim Van Sebroeck
parent 4d3d50f607
commit 981785da79
1 changed files with 5 additions and 3 deletions
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8
drivers/watchdog/Kconfig
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@ -496,16 +496,18 @@ config S3C2410_WATCHDOG
select WATCHDOG_CORE
select MFD_SYSCON if ARCH_EXYNOS
help
Watchdog timer block in the Samsung SoCs. This will reboot
the system when the timer expires with the watchdog enabled.
Watchdog timer block in the Samsung S3C24xx, S3C64xx, S5Pv210 and
Exynos SoCs. This will reboot the system when the timer expires with
the watchdog enabled.
The driver is limited by the speed of the system's PCLK
signal, so with reasonably fast systems (PCLK around 50-66MHz)
then watchdog intervals of over approximately 20seconds are
unavailable.
Choose Y/M here only if you build for such Samsung SoC.
The driver can be built as a module by choosing M, and will
be called s3c2410_wdt
be called s3c2410_wdt.
config SA1100_WATCHDOG
tristate "SA1100/PXA2xx watchdog"