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authorAnirudha Sarangi <anirudha.sarangi@xilinx.com>2016-09-21 17:01:18 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-22 12:49:55 +0300
commita3081893cab48df3facff8144d9506610213241a (patch)
tree2a3defd7d48e9eafac8f89cb87d42a8fd6d77e93 /fs/devpts
parent87f1f809c9b90903e6a9ee0a8356a2303fd4270d (diff)
downloadlinux-a3081893cab48df3facff8144d9506610213241a.tar.xz
serial: xuartps: Do not enable parity error interrupt
The patch makes changes not to enable parity error interrupt. With the current implementation, each parity error results in two distinct interrupts (almost always). The first one is normal parity error interrupt with no data in the fifo and the second one is a proper Rx interrupt with the received data in the fifo. By disabling parity error interrupt we still ensure handling of parity errors as for the Rx fifo interrupt the parity error still shows up in the interrupt status register. Considering the fact that the by default INPCK and IGNPAR are not set, this is the optimal implementation for parity error handling. Signed-off-by: Anirudha Sarangi <anirudh@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> [stelford@cadence.com: cherry picked from https://github.com/Xilinx/linux-xlnx commit bf9f610b445e2c9ed33c41e1e0e30b43be4e1f97 with manual conflict resolution] Signed-off-by: Scott Telford <stelford@cadence.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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