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authorSteffen Trumtrar <s.trumtrar@pengutronix.de>2013-03-22 18:50:02 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-25 14:06:45 -0700
commit30215c3b8f36cc532267615ceade3657a9bd9563 (patch)
treee5255cb3f8b1304e476c8bf3742b7cc5b8713289
parentb250a6b0015753362eeb63c3a0dd985848ed772d (diff)
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: Steffen Trumtrar <s.trumtrar@pengutronix.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/tty/serial/xilinx_uartps.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index ba451c7209f..974c361a91f 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -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;
}