diff options
| -rw-r--r-- | drivers/spi/spi-npcm-pspi.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/spi/spi-npcm-pspi.c b/drivers/spi/spi-npcm-pspi.c index fed05b02007c..dda91c19af93 100644 --- a/drivers/spi/spi-npcm-pspi.c +++ b/drivers/spi/spi-npcm-pspi.c @@ -217,15 +217,23 @@ static void npcm_pspi_recv(struct npcm_pspi *priv) rsize = min(bytes_per_word(priv->bits_per_word), priv->rx_bytes); priv->rx_bytes -= rsize; - if (priv->rx_buf) { - if (rsize == 1) - val = ioread8(priv->base + NPCM_PSPI_DATA); - if (rsize == 2) - val = ioread16(priv->base + NPCM_PSPI_DATA); + if (!priv->rx_buf) + return; - *priv->rx_buf = val; - priv->rx_buf += rsize; + switch (rsize) { + case 1: + val = ioread8(priv->base + NPCM_PSPI_DATA); + break; + case 2: + val = ioread16(priv->base + NPCM_PSPI_DATA); + break; + default: + WARN_ON_ONCE(1); + return; } + + *priv->rx_buf = val; + priv->rx_buf += rsize; } static int npcm_pspi_transfer_one(struct spi_master *master, |