watchdog: s3c2410_wdt: Use devm_clk_get[_optional]_enabled() helpers
The devm_clk_get[_optional]_enabled() helpers: - call devm_clk_get[_optional]() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the calls to clk_disable_unprepare(). While at it, use dev_err_probe consistently, and use its return value to return the error code. Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230304165653.2179835-1-linux@roeck-us.netSigned-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
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