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spi/xilinx: Use cached value of register
The control register has not changed since the previous access. Therefore we can use the cached value and safe one bus access. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -271,7 +271,6 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
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* transmitter while the Isr refills the transmit register/FIFO,
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* or make sure it is stopped if we're done.
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*/
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cr = xspi->read_fn(xspi->regs + XSPI_CR_OFFSET);
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xspi->write_fn(cr | XSPI_CR_TRANS_INHIBIT,
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xspi->regs + XSPI_CR_OFFSET);
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