| commit | a7b4de13649ab37879ac6348965cb48136ad5c99 | [log] [tgz] |
|---|---|---|
| author | Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> | Thu Mar 22 13:50:46 2018 +0300 |
| committer | Jagan Teki <jagan@amarulasolutions.com> | Thu Mar 22 23:01:35 2018 +0530 |
| tree | 282b2100df88487e155416e3f3e5e351108c0dd4 | |
| parent | c5c6d459e21a40548c14db97b876f79ca905ef6a [diff] |
DW SPI: add option to use external gpio for chip select DW SPI internal chip select management has limitation: it hold CS line in active state only when the FIFO is not empty. If the FIFO freed before we add new data the SPI transaction will be broken. So add option to use external gpio for chip select. Gpio can be added via device tree using standard gpio bindings. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Reviewed-by: Jagan Teki <jagan@openedev.com>