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drivers: stm32_lptim_timer: add support for STM32WL series

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Add the lptim1 device node definition and enable the corresponding
exti interrupt in sys_clock_driver_init().

Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
This commit is contained in:
Fabio Baltieri 2021-05-16 18:20:23 +01:00 • committed by Anas Nashif
commit 9c82898127
2 changed files with 17 additions and 0 deletions
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5
drivers/timer/stm32_lptim_timer.c
View file

@ -128,6 +128,11 @@ int sys_clock_driver_init(const struct device *dev)
lptim_irq_handler, 0, 0);
irq_enable(DT_IRQN(DT_NODELABEL(lptim1)));
#ifdef CONFIG_SOC_SERIES_STM32WLX
/* Enable the LPTIM1 wakeup EXTI line */
LL_EXTI_EnableIT_0_31(LL_EXTI_LINE_29);
#endif
/* configure the LPTIM1 counter */
LL_LPTIM_SetClockSource(LPTIM1, LL_LPTIM_CLK_SOURCE_INTERNAL);
/* configure the LPTIM1 prescaler with 1 */

12
dts/arm/st/wl/stm32wl.dtsi
View file

@ -151,6 +151,18 @@
};
};
lptim1: timers@40007c00 {
compatible = "st,stm32-lptim";
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x80000000>;
#address-cells = <1>;
#size-cells = <0>;
reg = <0x40007c00 0x400>;
interrupts = <39 0>;
interrupt-names = "wakeup";
status = "disabled";
label = "LPTIM_1";
};
rtc: rtc@40002800 {
compatible = "st,stm32-rtc";
reg = <0x40002800 0x400>;