diff options
| author |   Jon Lin <jon.lin@rock-chips.com> | 2021-06-21 18:47:57 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2021-06-23 12:35:41 +0100 |
| commit | 4a47fcdb5f8b220a396e896a4efed51c13e27d8b (patch) | |
| tree | 1ff7c9f09dfa4ab09d9f4e165104328b44e327cb /drivers/spi | |
| parent | spi: rockchip: add compatible string for rv1126 (diff) | |
| download | linux-dev-4a47fcdb5f8b220a396e896a4efed51c13e27d8b.tar.xz linux-dev-4a47fcdb5f8b220a396e896a4efed51c13e27d8b.zip | |
spi: rockchip: Set rx_fifo interrupt waterline base on transfer item
The error here is to calculate the width as 8 bits. In fact, 16 bits
should be considered.
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20210621104800.19088-4-jon.lin@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-rockchip.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c index bbeed3ae4ee1..0887b19ef3ad 100644 --- a/drivers/spi/spi-rockchip.c +++ b/drivers/spi/spi-rockchip.c @@ -540,8 +540,8 @@ static int rockchip_spi_config(struct rockchip_spi *rs, * interrupt exactly when the fifo is full doesn't seem to work, * so we need the strict inequality here */ - if (xfer->len < rs->fifo_len) - writel_relaxed(xfer->len - 1, rs->regs + ROCKCHIP_SPI_RXFTLR); + if ((xfer->len / rs->n_bytes) < rs->fifo_len) + writel_relaxed(xfer->len / rs->n_bytes - 1, rs->regs + ROCKCHIP_SPI_RXFTLR); else writel_relaxed(rs->fifo_len / 2 - 1, rs->regs + ROCKCHIP_SPI_RXFTLR); |