If the SPI controller supports switching to 16-bit transfers, there is no need to swap bytes on little-endian architectures. This also allows to transfer directly from the 16-bit framebuffer. Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> --- drivers/video/mipi_dbi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/video/mipi_dbi.c b/drivers/video/mipi_dbi.c index e6a147a9bf36..30fba07acfb2 100644 --- a/drivers/video/mipi_dbi.c +++ b/drivers/video/mipi_dbi.c @@ -632,8 +632,7 @@ int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *dbi, dbi->command = mipi_dbi_typec3_command; dbi->dc = dc; - // TODO: can we just force 16 bit? - if (mipi_dbi_machine_little_endian() && spi->bits_per_word != 16) + if (mipi_dbi_machine_little_endian() && !spi_is_bpw_supported(spi, 16)) dbi->swap_bytes = true; dev_dbg(dev, "SPI speed: %uMHz\n", spi->max_speed_hz / 1000000); -- 2.39.2
