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.za...@pengutronix.de>
---
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
