diff options
Diffstat (limited to 'drivers/spi/spi-topcliff-pch.c')
| -rw-r--r-- | drivers/spi/spi-topcliff-pch.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c index 2e7f38c..88eb57e 100644 --- a/drivers/spi/spi-topcliff-pch.c +++ b/drivers/spi/spi-topcliff-pch.c @@ -915,7 +915,7 @@ static void pch_spi_request_dma(struct pch_spi_data *data, int bpw) /* Set Tx DMA */ param = &dma->param_tx; param->dma_dev = &dma_dev->dev; - param->chan_id = data->master->bus_num * 2; /* Tx = 0, 2 */ + param->chan_id = data->ch * 2; /* Tx = 0, 2 */; param->tx_reg = data->io_base_addr + PCH_SPDWR; param->width = width; chan = dma_request_channel(mask, pch_spi_filter, param); @@ -930,7 +930,7 @@ static void pch_spi_request_dma(struct pch_spi_data *data, int bpw) /* Set Rx DMA */ param = &dma->param_rx; param->dma_dev = &dma_dev->dev; - param->chan_id = data->master->bus_num * 2 + 1; /* Rx = Tx + 1 */ + param->chan_id = data->ch * 2 + 1; /* Rx = Tx + 1 */; param->rx_reg = data->io_base_addr + PCH_SPDRR; param->width = width; chan = dma_request_channel(mask, pch_spi_filter, param); @@ -1452,6 +1452,11 @@ static int pch_spi_pd_probe(struct platform_device *plat_dev) pch_spi_set_master_mode(master); + if (use_dma) { + dev_info(&plat_dev->dev, "Use DMA for data transfers\n"); + pch_alloc_dma_buf(board_dat, data); + } + ret = spi_register_master(master); if (ret != 0) { dev_err(&plat_dev->dev, @@ -1459,14 +1464,10 @@ static int pch_spi_pd_probe(struct platform_device *plat_dev) goto err_spi_register_master; } - if (use_dma) { - dev_info(&plat_dev->dev, "Use DMA for data transfers\n"); - pch_alloc_dma_buf(board_dat, data); - } - return 0; err_spi_register_master: + pch_free_dma_buf(board_dat, data); free_irq(board_dat->pdev->irq, data); err_request_irq: pch_spi_free_resources(board_dat, data); |
