From aa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 Mon Sep 17 00:00:00 2001 From: merge Date: Thu, 22 Jan 2009 13:55:32 +0000 Subject: MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green fix-stray-endmenu.patch Signed-off-by: Andy Green --- drivers/spi/spi_imx.c | 70 +++++++++++++++++++++++++-------------------------- 1 file changed, 35 insertions(+), 35 deletions(-) (limited to 'drivers/spi/spi_imx.c') diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c index 61ba147e384..269a55ec52e 100644 --- a/drivers/spi/spi_imx.c +++ b/drivers/spi/spi_imx.c @@ -506,20 +506,6 @@ static int map_dma_buffers(struct driver_data *drv_data) if (!IS_DMA_ALIGNED(drv_data->rx) || !IS_DMA_ALIGNED(drv_data->tx)) return -1; - /* NULL rx means write-only transfer and no map needed - since rx DMA will not be used */ - if (drv_data->rx) { - buf = drv_data->rx; - drv_data->rx_dma = dma_map_single( - dev, - buf, - drv_data->len, - DMA_FROM_DEVICE); - if (dma_mapping_error(dev, drv_data->rx_dma)) - return -1; - drv_data->rx_dma_needs_unmap = 1; - } - if (drv_data->tx == NULL) { /* Read only message --> use drv_data->dummy_dma_buf for dummy writes to achive reads */ @@ -533,18 +519,31 @@ static int map_dma_buffers(struct driver_data *drv_data) buf, drv_data->tx_map_len, DMA_TO_DEVICE); - if (dma_mapping_error(dev, drv_data->tx_dma)) { - if (drv_data->rx_dma) { - dma_unmap_single(dev, - drv_data->rx_dma, - drv_data->len, - DMA_FROM_DEVICE); - drv_data->rx_dma_needs_unmap = 0; - } + if (dma_mapping_error(dev, drv_data->tx_dma)) return -1; - } drv_data->tx_dma_needs_unmap = 1; + /* NULL rx means write-only transfer and no map needed + * since rx DMA will not be used */ + if (drv_data->rx) { + buf = drv_data->rx; + drv_data->rx_dma = dma_map_single(dev, + buf, + drv_data->len, + DMA_FROM_DEVICE); + if (dma_mapping_error(dev, drv_data->rx_dma)) { + if (drv_data->tx_dma) { + dma_unmap_single(dev, + drv_data->tx_dma, + drv_data->tx_map_len, + DMA_TO_DEVICE); + drv_data->tx_dma_needs_unmap = 0; + } + return -1; + } + drv_data->rx_dma_needs_unmap = 1; + } + return 0; } @@ -1457,7 +1456,7 @@ static int __init spi_imx_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct spi_imx_master *platform_info; struct spi_master *master; - struct driver_data *drv_data = NULL; + struct driver_data *drv_data; struct resource *res; int irq, status = 0; @@ -1468,14 +1467,6 @@ static int __init spi_imx_probe(struct platform_device *pdev) goto err_no_pdata; } - drv_data->clk = clk_get(&pdev->dev, "perclk2"); - if (IS_ERR(drv_data->clk)) { - dev_err(&pdev->dev, "probe - cannot get get\n"); - status = PTR_ERR(drv_data->clk); - goto err_no_clk; - } - clk_enable(drv_data->clk); - /* Allocate master with space for drv_data */ master = spi_alloc_master(dev, sizeof(struct driver_data)); if (!master) { @@ -1496,6 +1487,14 @@ static int __init spi_imx_probe(struct platform_device *pdev) drv_data->dummy_dma_buf = SPI_DUMMY_u32; + drv_data->clk = clk_get(&pdev->dev, "perclk2"); + if (IS_ERR(drv_data->clk)) { + dev_err(&pdev->dev, "probe - cannot get clock\n"); + status = PTR_ERR(drv_data->clk); + goto err_no_clk; + } + clk_enable(drv_data->clk); + /* Find and map resources */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { @@ -1631,12 +1630,13 @@ err_no_iomap: kfree(drv_data->ioarea); err_no_iores: - spi_master_put(master); - -err_no_pdata: clk_disable(drv_data->clk); clk_put(drv_data->clk); + err_no_clk: + spi_master_put(master); + +err_no_pdata: err_no_mem: return status; } -- cgit v1.2.3