Commit 30215c3b authored by Steffen Trumtrar's avatar Steffen Trumtrar Committed by Greg Kroah-Hartman
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serial: xilinx_uartps: remove superfluous IDR write 



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

Signed-off-by: default avatarSteffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b250a6b0

drivers/tty/serial/xilinx_uartps.c

+0 −3
Original line number Diff line number Diff line
@@ -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;

}

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