diff options
| -rw-r--r-- | src/drivers/px4io/px4io_serial.cpp | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/src/drivers/px4io/px4io_serial.cpp b/src/drivers/px4io/px4io_serial.cpp index 1a848cbc0..42d87f7e5 100644 --- a/src/drivers/px4io/px4io_serial.cpp +++ b/src/drivers/px4io/px4io_serial.cpp @@ -217,9 +217,6 @@ PX4IO_serial::~PX4IO_serial() stm32_unconfiggpio(PX4IO_SERIAL_TX_GPIO); stm32_unconfiggpio(PX4IO_SERIAL_RX_GPIO); - /* Disable APB clock for the USART peripheral */ - modifyreg32(STM32_RCC_APB2ENR, RCC_APB2ENR_USART6EN, 0); - /* and kill our semaphores */ sem_destroy(&_completion_semaphore); sem_destroy(&_bus_semaphore); @@ -246,12 +243,9 @@ PX4IO_serial::init() /* allocate DMA */ _tx_dma = stm32_dmachannel(PX4IO_SERIAL_TX_DMAMAP); _rx_dma = stm32_dmachannel(PX4IO_SERIAL_RX_DMAMAP); - if ((_tx_dma == nullptr) || (_rx_dma == nullptr)) + if ((_tx_dma == nullptr) || (_rx_dma == nullptr)) { return -1; - - - /* Enable the APB clock for the USART peripheral */ - modifyreg32(STM32_RCC_APB2ENR, 0, RCC_APB2ENR_USART6EN); + } /* configure pins for serial use */ stm32_configgpio(PX4IO_SERIAL_TX_GPIO); |