On Wed, Jun 19, 2024 at 09:42:23AM -0300, Marcelo Schmitt wrote: > On 06/19, Mark Brown wrote: > > On Tue, Jun 18, 2024 at 08:10:44PM -0300, Marcelo Schmitt wrote: > > > First replies to v3 brought the idea of having a feature detection mechanism. > > > I didn't really get how to do that. If feature detection is required, can > > > somebody please provide some pointers on how to implement that? > > Look at the checks in spi_setup() for bad_bits. > Yes, I added MOSI idle configuration bits to bad_bits so spi_setup() fails > if the feature is requested but not supported: > bad_bits = spi->mode & ~(spi->controller->mode_bits | SPI_CS_WORD | > SPI_NO_TX | SPI_NO_RX | SPI_MOSI_IDLE_LOW | > SPI_MOSI_IDLE_HIGH); > am I still missing anything? That should be fine.
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