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Using list_move_tail() and list_move() to simplify the code.
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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wait_for_completion_timeout returns unsigned long not int so the check for
<= 0 should be == 0 here, and the type unsigned long. The function return
is set to -ETIMEDOUT to reflect the actual problem.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Current code does not use ctldata at all, so remove spi_set_ctldata call.
spi_setup() will set spi->bits_per_word = 8 if it was not set, so remove
!spi->max_speed_hz checking.
The spi core allows absent of spi->max_speed_hz setting, if it was not set
spi_setup() assigns spi->master->max_speed_hz to it.
spi core allows spi->max_speed_hz > spi->master->max_speed_hz, in this case
spi core will limit the transfer speed to ensure xfer->speed_hz won't
greater than spi->master->max_speed_hz so remove checking if
spi->max_speed_hz is higher than spi->master->max_speed_hz.
As a result, both pic32_sqi_setup() and pic32_sqi_cleanup() can be removed.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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We read one element beyond the end of the array when we access
"rdesc[i + 1]" so it causes a static checker warning. It's harmless
because we write over it again on the next line. But let's just silence
the warning.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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This driver implements SPI master interface for Quad SPI
controller, specifically for accessing quad SPI flash.
It uses descriptor-based DMA transfer mode and supports
half-duplex communication for single, dual and quad SPI
transactions.
Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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