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boards: reel_board: enable pull-up on UART TX pin
Enable pull-up on UART TX pin to reduce power consumption. If the board is powered by battery the SoC consumes more power than expected. The consumption increases because TX pin is floating (High-Impedance state of pin B from Dual-Supply Bus Transceiver). Similar to commit b5b7284 ("boards: reel_board: enable pull-up on UART RX pin") Signed-off-by: Johann Fischer <email@example.com>
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