diff options
| -rw-r--r-- | drivers/spi/rk_spi.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/spi/rk_spi.c b/drivers/spi/rk_spi.c index 5f8f915e02..63efa0563a 100644 --- a/drivers/spi/rk_spi.c +++ b/drivers/spi/rk_spi.c @@ -374,9 +374,18 @@ static int rockchip_spi_xfer(struct udevice *dev, unsigned int bitlen, toread--; } } - ret = rkspi_wait_till_not_busy(regs); - if (ret) - break; + + /* + * In case that there's a transmit-component, we need to wait + * until the control goes idle before we can disable the SPI + * control logic (as this will implictly flush the FIFOs). + */ + if (out) { + ret = rkspi_wait_till_not_busy(regs); + if (ret) + break; + } + len -= todo; } |