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serial: xilinx_uartps: remove superfluous IDR write

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The datesheet clearly states, that writing low bits to the
XUARTPS_IDR register have no effect. Remove the write.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Steffen Trumtrar
2013-03-22 18:50:02 +01:00
committed by Greg Kroah-Hartman
parent b250a6b001
commit 30215c3b8f
1 changed files with 0 additions and 3 deletions
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3
drivers/tty/serial/xilinx_uartps.c
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@@ -583,9 +583,6 @@ static int xuartps_startup(struct uart_port *port)
xuartps_writel(XUARTPS_IXR_TXEMPTY | XUARTPS_IXR_PARITY |
XUARTPS_IXR_FRAMING | XUARTPS_IXR_OVERRUN |
XUARTPS_IXR_RXTRIG | XUARTPS_IXR_TOUT, XUARTPS_IER_OFFSET);
xuartps_writel(~(XUARTPS_IXR_TXEMPTY | XUARTPS_IXR_PARITY |
XUARTPS_IXR_FRAMING | XUARTPS_IXR_OVERRUN |
XUARTPS_IXR_RXTRIG | XUARTPS_IXR_TOUT), XUARTPS_IDR_OFFSET);
return retval;
}