tree b47af745558915b9bfbe64cf869df5845d99e84c
parent c6cb3815f70d39e377bec6b44d25f2d8b68b324e
author Serge Semin <Sergey.Semin@baikalelectronics.ru> 1602114902 +0300
committer Mark Brown <broonie@kernel.org> 1602194416 +0100
gpgsig -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl9/i/AACgkQJNaLcl1U
 h9ADMgf/RKPwBERQWKgd4WOn6fK+2TkawrrPoppNcoi7qlay9snxgVyYN/wexi0X
 7vbahHFTK3UFVC9cAOvcWSAPGSfE31/wJs8a0ImSFh6KiBV13XvqOfXPoJZxSysC
 YDurXBRXkPlJhxMmNCmP4xjxiOV6i/BtgIHsEHjskJT42OEJkfJoZ4pBx3pGwqNH
 exbzTorLPxO8+hRo2jJentg/fE5odRqjDIa/BSNr4lVJcI2HyQ6kISD0rvItQnwr
 h389gUcCzpYywSPBS+bbyGk2fMiaN4+31AT2A1eFOXyrqgYnzKaXKTH4rRe9gDMK
 NrmI4HK5R4QHze4FF3Cjc/tHg/dWjQ==
 =x268
 -----END PGP SIGNATURE-----

spi: dw: De-assert chip-select on reset

SPI memory operations implementation will require to have the CS register
cleared before executing the operation in order not to have the
transmission automatically started prior the Tx FIFO is pre-initialized.
Let's clear the register then on explicit controller reset to fulfil the
requirements in case of an error or having the CS left set by a bootloader
or another software.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20201007235511.4935-14-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Mark Brown <broonie@kernel.org>