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 2e7f38c7a961..88eb57e858b3 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) | |||
915 | /* Set Tx DMA */ | 915 | /* Set Tx DMA */ |
916 | param = &dma->param_tx; | 916 | param = &dma->param_tx; |
917 | param->dma_dev = &dma_dev->dev; | 917 | param->dma_dev = &dma_dev->dev; |
918 | param->chan_id = data->master->bus_num * 2; /* Tx = 0, 2 */ | 918 | param->chan_id = data->ch * 2; /* Tx = 0, 2 */; |
919 | param->tx_reg = data->io_base_addr + PCH_SPDWR; | 919 | param->tx_reg = data->io_base_addr + PCH_SPDWR; |
920 | param->width = width; | 920 | param->width = width; |
921 | chan = dma_request_channel(mask, pch_spi_filter, param); | 921 | 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) | |||
930 | /* Set Rx DMA */ | 930 | /* Set Rx DMA */ |
931 | param = &dma->param_rx; | 931 | param = &dma->param_rx; |
932 | param->dma_dev = &dma_dev->dev; | 932 | param->dma_dev = &dma_dev->dev; |
933 | param->chan_id = data->master->bus_num * 2 + 1; /* Rx = Tx + 1 */ | 933 | param->chan_id = data->ch * 2 + 1; /* Rx = Tx + 1 */; |
934 | param->rx_reg = data->io_base_addr + PCH_SPDRR; | 934 | param->rx_reg = data->io_base_addr + PCH_SPDRR; |
935 | param->width = width; | 935 | param->width = width; |
936 | chan = dma_request_channel(mask, pch_spi_filter, param); | 936 | chan = dma_request_channel(mask, pch_spi_filter, param); |
@@ -1452,6 +1452,11 @@ static int pch_spi_pd_probe(struct platform_device *plat_dev) | |||
1452 | 1452 | ||
1453 | pch_spi_set_master_mode(master); | 1453 | pch_spi_set_master_mode(master); |
1454 | 1454 | ||
1455 | if (use_dma) { | ||
1456 | dev_info(&plat_dev->dev, "Use DMA for data transfers\n"); | ||
1457 | pch_alloc_dma_buf(board_dat, data); | ||
1458 | } | ||
1459 | |||
1455 | ret = spi_register_master(master); | 1460 | ret = spi_register_master(master); |
1456 | if (ret != 0) { | 1461 | if (ret != 0) { |
1457 | dev_err(&plat_dev->dev, | 1462 | dev_err(&plat_dev->dev, |
@@ -1459,14 +1464,10 @@ static int pch_spi_pd_probe(struct platform_device *plat_dev) | |||
1459 | goto err_spi_register_master; | 1464 | goto err_spi_register_master; |
1460 | } | 1465 | } |
1461 | 1466 | ||
1462 | if (use_dma) { | ||
1463 | dev_info(&plat_dev->dev, "Use DMA for data transfers\n"); | ||
1464 | pch_alloc_dma_buf(board_dat, data); | ||
1465 | } | ||
1466 | |||
1467 | return 0; | 1467 | return 0; |
1468 | 1468 | ||
1469 | err_spi_register_master: | 1469 | err_spi_register_master: |
1470 | pch_free_dma_buf(board_dat, data); | ||
1470 | free_irq(board_dat->pdev->irq, data); | 1471 | free_irq(board_dat->pdev->irq, data); |
1471 | err_request_irq: | 1472 | err_request_irq: |
1472 | pch_spi_free_resources(board_dat, data); | 1473 | pch_spi_free_resources(board_dat, data); |