feat(stm32_gpio): add a function to reset a pin
Add set_gpio_reset_cfg() to set a pin in its reset configuration:
analog, no-pull, speed low, and its secure configuration, thanks to
stm32_gpio_is_secure_at_reset().
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I7b73c3636859f97fcc57f81cf68b42efc727922e
diff --git a/drivers/st/gpio/stm32_gpio.c b/drivers/st/gpio/stm32_gpio.c
index 7d63262..51276f4 100644
--- a/drivers/st/gpio/stm32_gpio.c
+++ b/drivers/st/gpio/stm32_gpio.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2016-2020, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2016-2021, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -283,3 +283,10 @@
stm32mp_clk_disable(clock);
}
+
+void set_gpio_reset_cfg(uint32_t bank, uint32_t pin)
+{
+ set_gpio(bank, pin, GPIO_MODE_ANALOG, GPIO_SPEED_LOW,
+ GPIO_NO_PULL, GPIO_ALTERNATE_(0), DT_DISABLED);
+ set_gpio_secure_cfg(bank, pin, stm32_gpio_is_secure_at_reset(bank));
+}