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commit cd603af95870d4c0b6df8fbbce3dfb15b0929c15 Author: David Sidrane <[email protected]> AuthorDate: Mon May 3 10:37:57 2021 -0700 stm32f7:Allow for reuse of the OTG_ID GPIO --- arch/arm/src/stm32f7/Kconfig | 13 +++++++++++++ arch/arm/src/stm32f7/stm32_otgdev.c | 6 +++++- 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/arch/arm/src/stm32f7/Kconfig b/arch/arm/src/stm32f7/Kconfig index b819744..9074db7 100644 --- a/arch/arm/src/stm32f7/Kconfig +++ b/arch/arm/src/stm32f7/Kconfig @@ -1734,6 +1734,19 @@ config STM32F7_SYSCFG_IOCOMPENSATION The I/O compensation cell can be used only when the supply voltage ranges from 2.4 to 3.6 V. +menu "OTG Configuration" + depends on STM32F7_OTGFS + +config OTG_ID_GPIO_DISABLE + bool "Disable the use of GPIO_OTG_ID pin." + default n + ---help--- + Disables/Enabled the use of GPIO_OTG_ID pin. This allows non OTG use + cases to reuse this GPIO pin and ensure it is not set incorrectlty + during OS boot. + +endmenu + menu "U[S]ART Configuration" depends on STM32F7_USART diff --git a/arch/arm/src/stm32f7/stm32_otgdev.c b/arch/arm/src/stm32f7/stm32_otgdev.c index c719157..c4e6593 100644 --- a/arch/arm/src/stm32f7/stm32_otgdev.c +++ b/arch/arm/src/stm32f7/stm32_otgdev.c @@ -5726,7 +5726,11 @@ void arm_usbinitialize(void) stm32_configgpio(GPIO_OTG_DM); stm32_configgpio(GPIO_OTG_DP); - stm32_configgpio(GPIO_OTG_ID); /* Only needed for OTG */ + + /* Only needed for OTG */ +# ifndef CONFIG_OTG_ID_GPIO_DISABLE + stm32_configgpio(GPIO_OTG_ID); +# endif /* SOF output pin configuration is configurable. */
