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serial: samsung: remove redundant interrupt enabling

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Function s3c24xx_serial_start_tx_pio() enables interrupts if needed,
so we don't have to (or even we shouldn't) enable them before.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Robert Baldyga 2015-01-28 14:44:23 +01:00 • committed by Greg Kroah-Hartman
parent 632f32e210
commit ba019a3e2a
1 changed files with 1 additions and 8 deletions
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9
drivers/tty/serial/samsung.c
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@ -358,15 +358,8 @@ void s3c24xx_serial_start_tx(struct uart_port *port)
s3c24xx_serial_rx_disable(port); s3c24xx_serial_rx_disable(port);
tx_enabled(port) = 1; tx_enabled(port) = 1;
if (!ourport->dma || !ourport->dma->tx_chan) { if (!ourport->dma || !ourport->dma->tx_chan)
if (s3c24xx_serial_has_interrupt_mask(port))
__clear_bit(S3C64XX_UINTM_TXD,
portaddrl(port, S3C64XX_UINTM));
else
enable_irq(ourport->tx_irq);
s3c24xx_serial_start_tx_pio(ourport); s3c24xx_serial_start_tx_pio(ourport);
}
} }
if (ourport->dma && ourport->dma->tx_chan) { if (ourport->dma && ourport->dma->tx_chan) {