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path: root/drivers/spi/spi-mt65xx.c
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Diffstat (limited to 'drivers/spi/spi-mt65xx.c')
-rw-r--r--drivers/spi/spi-mt65xx.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 11aeae7fe7fc..a33c9a3de395 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -551,14 +551,17 @@ static void mtk_spi_enable_transfer(struct spi_master *master)
writel(cmd, mdata->base + SPI_CMD_REG);
}
-static int mtk_spi_get_mult_delta(u32 xfer_len)
+static int mtk_spi_get_mult_delta(struct mtk_spi *mdata, u32 xfer_len)
{
- u32 mult_delta;
+ u32 mult_delta = 0;
- if (xfer_len > MTK_SPI_PACKET_SIZE)
- mult_delta = xfer_len % MTK_SPI_PACKET_SIZE;
- else
- mult_delta = 0;
+ if (mdata->dev_comp->ipm_design) {
+ if (xfer_len > MTK_SPI_IPM_PACKET_SIZE)
+ mult_delta = xfer_len % MTK_SPI_IPM_PACKET_SIZE;
+ } else {
+ if (xfer_len > MTK_SPI_PACKET_SIZE)
+ mult_delta = xfer_len % MTK_SPI_PACKET_SIZE;
+ }
return mult_delta;
}
@@ -570,22 +573,22 @@ static void mtk_spi_update_mdata_len(struct spi_master *master)
if (mdata->tx_sgl_len && mdata->rx_sgl_len) {
if (mdata->tx_sgl_len > mdata->rx_sgl_len) {
- mult_delta = mtk_spi_get_mult_delta(mdata->rx_sgl_len);
+ mult_delta = mtk_spi_get_mult_delta(mdata, mdata->rx_sgl_len);
mdata->xfer_len = mdata->rx_sgl_len - mult_delta;
mdata->rx_sgl_len = mult_delta;
mdata->tx_sgl_len -= mdata->xfer_len;
} else {
- mult_delta = mtk_spi_get_mult_delta(mdata->tx_sgl_len);
+ mult_delta = mtk_spi_get_mult_delta(mdata, mdata->tx_sgl_len);
mdata->xfer_len = mdata->tx_sgl_len - mult_delta;
mdata->tx_sgl_len = mult_delta;
mdata->rx_sgl_len -= mdata->xfer_len;
}
} else if (mdata->tx_sgl_len) {
- mult_delta = mtk_spi_get_mult_delta(mdata->tx_sgl_len);
+ mult_delta = mtk_spi_get_mult_delta(mdata, mdata->tx_sgl_len);
mdata->xfer_len = mdata->tx_sgl_len - mult_delta;
mdata->tx_sgl_len = mult_delta;
} else if (mdata->rx_sgl_len) {
- mult_delta = mtk_spi_get_mult_delta(mdata->rx_sgl_len);
+ mult_delta = mtk_spi_get_mult_delta(mdata, mdata->rx_sgl_len);
mdata->xfer_len = mdata->rx_sgl_len - mult_delta;
mdata->rx_sgl_len = mult_delta;
}