fix: Fix accidentally close PDMA used by other devices when close the serial port
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@ -803,8 +803,10 @@ static rt_err_t nu_uart_control(struct rt_serial_device *serial, int cmd, void *
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rt_hw_interrupt_mask(psNuUart->irqn);
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#if defined(RT_SERIAL_USING_DMA)
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nu_pdma_channel_terminate(psNuUart->pdma_chanid_tx);
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nu_pdma_channel_terminate(psNuUart->pdma_chanid_rx);
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if (psNuUart->dma_flag != 0) {
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nu_pdma_channel_terminate(psNuUart->pdma_chanid_tx);
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nu_pdma_channel_terminate(psNuUart->pdma_chanid_rx);
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}
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#endif
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/* Close UART port */
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