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serial: fsl_lpuart: use UARTDATA_MASK macro 

Use the corresponding macro instead of the magic number. While at it,
drop the useless cast to "unsigned char".

Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210512141255.18277-3-michael@walle.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Walle 2021-05-12 16:12:48 +02:00 committed by Greg Kroah-Hartman
parent ccf08fd120
commit ec22c3eec5
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/serial/fsl_lpuart.c
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@ -928,9 +928,9 @@ static void lpuart32_rxint(struct lpuart_port *sport)
*/ */
sr = lpuart32_read(&sport->port, UARTSTAT); sr = lpuart32_read(&sport->port, UARTSTAT);
rx = lpuart32_read(&sport->port, UARTDATA); rx = lpuart32_read(&sport->port, UARTDATA);
rx &= 0x3ff; rx &= UARTDATA_MASK;
if (uart_handle_sysrq_char(&sport->port, (unsigned char)rx)) if (uart_handle_sysrq_char(&sport->port, rx))
continue; continue;
if (sr & (UARTSTAT_PE | UARTSTAT_OR | UARTSTAT_FE)) { if (sr & (UARTSTAT_PE | UARTSTAT_OR | UARTSTAT_FE)) {