diff options
| -rw-r--r-- | drivers/spi/spi-pxa2xx-dma.c | 10 | ||||
| -rw-r--r-- | drivers/spi/spi-pxa2xx.c | 1 | ||||
| -rw-r--r-- | drivers/spi/spi-pxa2xx.h | 1 |
3 files changed, 2 insertions, 10 deletions
diff --git a/drivers/spi/spi-pxa2xx-dma.c b/drivers/spi/spi-pxa2xx-dma.c index 624cb06bd2e1..a18a03d0afb7 100644 --- a/drivers/spi/spi-pxa2xx-dma.c +++ b/drivers/spi/spi-pxa2xx-dma.c @@ -53,11 +53,7 @@ static int pxa2xx_spi_map_dma_buffer(struct driver_data *drv_data, for_each_sg(sgt->sgl, sg, sgt->nents, i) { size_t bytes = min_t(size_t, len, SZ_2K); - if (buf) - sg_set_buf(sg, pbuf, bytes); - else - sg_set_buf(sg, drv_data->dummy, bytes); - + sg_set_buf(sg, pbuf, bytes); pbuf += bytes; len -= bytes; } @@ -312,10 +308,6 @@ int pxa2xx_spi_dma_setup(struct driver_data *drv_data) dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - drv_data->dummy = devm_kzalloc(dev, SZ_2K, GFP_KERNEL); - if (!drv_data->dummy) - return -ENOMEM; - drv_data->tx_chan = dma_request_slave_channel_compat(mask, pdata->dma_filter, pdata->tx_param, dev, "tx"); if (!drv_data->tx_chan) diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 47bdbd350a24..86c155aea0cf 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1562,6 +1562,7 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) master->unprepare_transfer_hardware = pxa2xx_spi_unprepare_transfer; master->fw_translate_cs = pxa2xx_spi_fw_translate_cs; master->auto_runtime_pm = true; + master->flags = SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX; drv_data->ssp_type = ssp->type; diff --git a/drivers/spi/spi-pxa2xx.h b/drivers/spi/spi-pxa2xx.h index 85017f9ca67c..e6b09000ff14 100644 --- a/drivers/spi/spi-pxa2xx.h +++ b/drivers/spi/spi-pxa2xx.h @@ -56,7 +56,6 @@ struct driver_data { struct sg_table tx_sgt; int rx_nents; int tx_nents; - void *dummy; atomic_t dma_running; /* Current message transfer state info */ |