Hi Valentin, On Mon, Jul 22, 2024 at 6:02 PM Valentin Caron <valentin.caron@xxxxxxxxxxx> wrote: > RTC is able to output on a pin the "LSE" internal clock. > > STM32 RTC is now registered as a clock provider. > It provides rtc_lsco clock, that means RTC_LSCO is output on either > RTC_OUT1 or RTC_OUT2_RMP, depending on pinmux DT property. > The clock is marked as CLK_IGNORE_UNUSED and CLK_IS_CRITICAL because > RTC_LSCO can be early required by devices needed it to init. > > Add LSCO in pinmux functions. > > Add "stm32_rtc_clean_outs" to disable LSCO. As RTC is part of "backup" > power domain, it is not reset during shutdown or reboot. So force LSCO > disable at probe. > > Co-developed-by: Amelie Delaunay <amelie.delaunay@xxxxxxxxxxx> > Signed-off-by: Amelie Delaunay <amelie.delaunay@xxxxxxxxxxx> > Signed-off-by: Valentin Caron <valentin.caron@xxxxxxxxxxx> (...) > @@ -1928,6 +1928,7 @@ config RTC_DRV_STM32 > select PINMUX > select PINCONF > select GENERIC_PINCONF > + depends on COMMON_CLK Just select COMMON_CLK Why not, it will with 100% certainty be needed anyway by the system clock controller. Yours, Linus Walleij
