Add support for using the sub second registers. It allows reading and
setting alarm with the sub second tick resolution.
The RTC module is configured to get as high frequency as possible, which
equals the source clock (RTCCLK) divided by 2. To get such frequency,
the asynchronous prescaler is set to 1.
According to RM, setting the asynchronous prescaler to a high value
minimize consumption, so the change increase the power consumption.
Use a config to enable the sub second support.
Signed-off-by: Dawid Niedzwiecki <dawidn@google.com>
New RTC API seems to conflict with old RTC implementations based on
COUNTER
This scheme follows Zephyrproject-rtos issue 56599 while keeping backward
compatibility.
Signed-off-by: Kim Bøndergaard <kim.bondergaard@prevas.dk>
This commit changes the ability to keep the RTC value between resets, and
turns it off by default.
Though this feature makes sense for an RTC counting the time and date,
here it is used as a counter. As such the registers used for coutning
should be reset after each MCU reset.
This change puts back in place the previous behavior before the Kconfig
CONFIG_COUNTER_RTC_STM32_BACKUP_DOMAIN_RESET was removed.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
Following #50104, properly deprecates old Kconfig symbols concerning
RTC source clock and makes them optional to have them disabled by
default.
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
Remove a set of Kconfig symbols for configuring the RTC on STM32
that are no longer useful
Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
Update counter drivers to use DT_HAS_<compat>_ENABLED Kconfig symbol
to expose the driver and enable it by default based on devicetree.
We remove 'depend on' Kconfig for symbols that would be implied by
the devicetree node existing.
Signed-off-by: Kumar Gala <galak@kernel.org>
mktime() was being used to convert from struct tm to time_t, but
Zephyr now has functions for that.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Allow the disabling of reseting of the backup domain. This gives
the possibility to keep the content of the 20 backup registers
and use them to store information that survives a reboot.
Signed-off-by: Erwin Rol <erwin@erwinrol.com>
The rtc counter is also built for the stm32l1 series
from STMicroelectronics.
The EXTI line 17 is mapped on RTC alarm pin
Signed-off-by: Francois Ramu <francois.ramu@st.com>
This patch set the EXTI line 17 as the RTC alarm pin
on the stm32f2x serie from STMicroelectronics.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
Enable counter driver support for H7 series. Tested with H743ZI MCU
using samples/drivers/counter/alarm.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
Use this short header style in all Kconfig files:
# <description>
# <copyright>
# <license>
...
Also change all <description>s from
# Kconfig[.extension] - Foo-related options
to just
# Foo-related options
It's clear enough that it's about Kconfig.
The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)
git ls-files '*Kconfig*' | \
xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Provides a STM32 RTC driver using new counter API.
Driver does not support wrap related functions (set, get, ..)
Fixes#11373
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
