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(parent: 16ea9b8) | patch
spi/spi-xilinx: Fix spurious IRQ ACK on irq mode
authorRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Thu, 13 Aug 2015 14:09:28 +0000 (16:09 +0200)
committerMark Brown <broonie@kernel.org>
Fri, 14 Aug 2015 15:35:19 +0000 (16:35 +0100)
commit74346841e6f5df5f7b83d5904435d273c507dba6
tree1c035bdb2b0f0c3ec90677b185ade11273c41725tree | snapshot
parent16ea9b8ac45bf11d48af6013283e141e8ed86348commit | diff
spi/spi-xilinx: Fix spurious IRQ ACK on irq mode

The ACK of an inexistent IRQ can trigger an spurious IRQ that breaks the
txrx logic. This has been observed on axi_quad_spi:3.2 core.

This patch only ACKs IRQs that have not been Acknowledge jet.

Reported-by: Edward Kigwana <ekigwana@scires.com>
Tested-by: Edward Kigwana <ekigwana@scires.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
drivers/spi/spi-xilinx.c diff | blob | history
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