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Commit 70dbf7e6 authored by Mahesh Mahadevan's avatar Mahesh Mahadevan Committed by David Leach
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drivers: uart_imx: Fix the poll_in function 



Current poll_in function implementation blocks when there is
no data available. The Zephyr documentation for poll_in
expects the function to return -1 when no data is available.

Signed-off-by: default avatarMahesh Mahadevan <mahesh.mahadevan@nxp.com>
parent a8c7f825
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