drivers: rtc: Add Micro Crystal RV-8803-C7 RTC driver

This PR adds support for Micro Crystal RV-8803-C7 RTC chip. Supported functionalities: * Update interrupt * Alarm interrupt * Time setting/reading * Alarm setting/reading * Aging offset calibration setting/reading * CLKOUT configuration Tested on nRF52833-DK using rtc_api test set. Signed-off-by: Marcin Lyda <[email protected]>
zephyrproject-rtos · Jan 9, 2025 · 39c4a88 · 39c4a88
1 parent 196fc5c
commit 39c4a88
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diff --git a/drivers/rtc/CMakeLists.txt b/drivers/rtc/CMakeLists.txt
@@ -27,3 +27,4 @@ zephyr_library_sources_ifdef(CONFIG_RTC_RV3028 rtc_rv3028.c)
 zephyr_library_sources_ifdef(CONFIG_RTC_NUMAKER rtc_numaker.c)
 zephyr_library_sources_ifdef(CONFIG_RTC_XMC4XXX rtc_xmc4xxx.c)
 zephyr_library_sources_ifdef(CONFIG_RTC_NXP_IRTC rtc_nxp_irtc.c)
+zephyr_library_sources_ifdef(CONFIG_RTC_RV8803 rtc_rv8803.c)
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
@@ -59,5 +59,6 @@ source "drivers/rtc/Kconfig.numaker"
 source "drivers/rtc/Kconfig.rv8263"
 source "drivers/rtc/Kconfig.xmc4xxx"
 source "drivers/rtc/Kconfig.nxp_irtc"
+source "drivers/rtc/Kconfig.rv8803"
 
 endif # RTC
diff --git a/drivers/rtc/Kconfig.rv8803 b/drivers/rtc/Kconfig.rv8803
@@ -0,0 +1,10 @@
+# Copyright (c) 2024 Marcin Lyda <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+
+config RTC_RV8803
+	bool "Micro Crystal RV8803 Extreme Low Power Real-Time Clock Module driver"
+	default y
+	depends on DT_HAS_MICROCRYSTAL_RV8803_ENABLED
+	select I2C
+	help
+	    Enable Micro Crystal RV8803 I2C RTC driver.