drivers: i2c: stm32: sync stm32_v2 RTIO on PM runtime state (181e5445) · Commits · Wenxi XU / zephyr

Always call pm_device_runtime_get() when registering a target even if the device is not wakeup capable to prevent I2C target not being function if the device goes into a SoC Stop mode. This change ports into the STM32 v2 RTIO driver the change made in the non-RTIO driver through commit ("i2c: stm32: always call runtime_get when registering targets"). Signed-off-by:

Etienne Carriere <etienne.carriere@st.com>

drivers/i2c/i2c_ll_stm32_v2_rtio.c

+5 −3

Changes for drivers/i2c/i2c_ll_stm32_v2_rtio.c: 5 added lines, 3 removed lines.
Original line number	Diff line number	Diff line
		@@ -210,9 +210,10 @@ int i2c_stm32_target_register(const struct device *dev,
		}

		#if defined(CONFIG_PM_DEVICE_RUNTIME)
		if (pm_device_wakeup_is_capable(dev)) {
		/* Mark device as active */
		(void)pm_device_runtime_get(dev);

		if (pm_device_wakeup_is_capable(dev)) {
		/* Enable wake-up from stop */
		LOG_DBG("i2c: enabling wakeup from stop");
		LL_I2C_EnableWakeUpFromStop(cfg->i2c);
		@@ -303,11 +304,12 @@ int i2c_stm32_target_unregister(const struct device *dev,
		/* Disable wake-up from STOP */
		LOG_DBG("i2c: disabling wakeup from stop");
		LL_I2C_DisableWakeUpFromStop(i2c);
		/* Release the device */
		(void)pm_device_runtime_put(dev);
		}
		#endif /* defined(CONFIG_PM_DEVICE_RUNTIME) */

		/* Release the device */
		(void)pm_device_runtime_put(dev);

		data->slave_attached = false;

		return 0;

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