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Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 47831
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* use kernel buildin transfer_one_message. we only need to implement
transfer_one and set_cs function
* should support use gpio as cs pin
* deselected the spi device when setup and add debug info
* only reset device when first driver probe
Signed-off-by: Michael Lee <igvtee@gmail.com>
SVN-Revision: 47579
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before spi transfer. use spi_prepare_message to setup spi hardware. it
will setup MSB, spi mode and speed
remove sys_freq member and speed check code
Signed-off-by: Michael Lee <igvtee@gmail.com>
SVN-Revision: 47578
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* check clock rate, SPI mode, and word sizes
* setup spi polarity
* enable spi1 hw if need
Signed-off-by: Michael Lee <igvtee@gmail.com>
SVN-Revision: 47577
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* fill struct according to the member order
* add error clean up
* set min/max spi speed. so we don't need to check again
Signed-off-by: Michael Lee <igvtee@gmail.com>
SVN-Revision: 47576
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use loops_per_jiffy, spi clock speed and write bytes to get the
spi loop count. if loop to 0 than spi operation timeout.
remove usleep. we only write 1 byte to spi device. use busy loop
would be better.
Signed-off-by: Michael Lee <igvtee@gmail.com>
SVN-Revision: 47575
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Signed-off-by: Michael Lee <igvtee@gmail.com>
SVN-Revision: 47574
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Signed-off-by: Michael Lee <igvtee@gmail.com>
SVN-Revision: 47573
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keep default as 3.14, mt7621 gic need to be ported to 3.18
Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 44349
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