On Tue, Dec 24, 2019 at 09:58:26AM +0900, Kunihiko Hayashi wrote: > Add SPI_LOOP to the capabilities to support loopback mode. > master->min_speed_hz = DIV_ROUND_UP(clk_rate, SSI_MAX_CLK_DIVIDER); > - master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST; > + master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST | > + SPI_LOOP; I'd expect to see a matching change that configures the hardware in loopback mode when the driver is in SPI_MODE? There's nothing in the existing driver.
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