23 Apr
2019
23 Apr
'19
4:31 p.m.
The maximum transfer length (in a single transaction) for the Rockchip SPI controller is 64Kframes (i.e. 0x10000 frames) of 8bit or 16bit frames and is encoded as (num_frames - 1) in CTRLR1. The existing code subtracted the "minus 1" twice for a maximum transfer length of 0xffff (64K - 1) frames.
While this is not strictly an error (the existing code is correct, but leads to a bit of head-scrating), fix this off-by-one situation.
Signed-off-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com
drivers/spi/rk_spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Applied to u-boot-rockchip, thanks!