diff options
Diffstat (limited to 'drivers/dma/qcom')
| -rw-r--r-- | drivers/dma/qcom/gpi.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/dma/qcom/gpi.c b/drivers/dma/qcom/gpi.c index 8e87738086b2..66bfea1f156d 100644 --- a/drivers/dma/qcom/gpi.c +++ b/drivers/dma/qcom/gpi.c @@ -1619,7 +1619,8 @@ gpi_peripheral_config(struct dma_chan *chan, struct dma_slave_config *config) } static int gpi_create_i2c_tre(struct gchan *chan, struct gpi_desc *desc, - struct scatterlist *sgl, enum dma_transfer_direction direction) + struct scatterlist *sgl, enum dma_transfer_direction direction, + unsigned long flags) { struct gpi_i2c_config *i2c = chan->config; struct device *dev = chan->gpii->gpi_dev->dev; @@ -1684,6 +1685,9 @@ static int gpi_create_i2c_tre(struct gchan *chan, struct gpi_desc *desc, tre->dword[3] = u32_encode_bits(TRE_TYPE_DMA, TRE_FLAGS_TYPE); tre->dword[3] |= u32_encode_bits(1, TRE_FLAGS_IEOT); + + if (!(flags & DMA_PREP_INTERRUPT)) + tre->dword[3] |= u32_encode_bits(1, TRE_FLAGS_BEI); } for (i = 0; i < tre_idx; i++) @@ -1827,6 +1831,9 @@ gpi_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, return NULL; } + if (!(flags & DMA_PREP_INTERRUPT) && (nr - nr_tre < 2)) + return NULL; + gpi_desc = kzalloc(sizeof(*gpi_desc), GFP_NOWAIT); if (!gpi_desc) return NULL; @@ -1835,7 +1842,7 @@ gpi_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, if (gchan->protocol == QCOM_GPI_SPI) { i = gpi_create_spi_tre(gchan, gpi_desc, sgl, direction); } else if (gchan->protocol == QCOM_GPI_I2C) { - i = gpi_create_i2c_tre(gchan, gpi_desc, sgl, direction); + i = gpi_create_i2c_tre(gchan, gpi_desc, sgl, direction, flags); } else { dev_err(dev, "invalid peripheral: %d\n", gchan->protocol); kfree(gpi_desc); |