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spi/spi-xilinx: Fix mixed poll/irq mode
Once the module process a transfer in irq mode, the next poll transfer
will not work because the transmitter is left in inhibited state.
Fixes: 22417352f6
(Use polling mode on small transfers)
Reported-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
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1 changed files with 3 additions and 1 deletions
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@ -302,8 +302,10 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
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remaining_words -= n_words;
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}
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if (use_irq)
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if (use_irq) {
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xspi->write_fn(0, xspi->regs + XIPIF_V123B_DGIER_OFFSET);
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xspi->write_fn(cr, xspi->regs + XSPI_CR_OFFSET);
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}
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return t->len;
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}
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