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path: root/drivers/mtd/nand/fsmc_nand.c
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Diffstat (limited to 'drivers/mtd/nand/fsmc_nand.c')
-rw-r--r--drivers/mtd/nand/fsmc_nand.c56
1 files changed, 28 insertions, 28 deletions
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 67e62d3d495c..05ba3f0c2d19 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -573,23 +573,22 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len,
dma_dev = chan->device;
dma_addr = dma_map_single(dma_dev->dev, buffer, len, direction);
+ flags |= DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
+
if (direction == DMA_TO_DEVICE) {
dma_src = dma_addr;
dma_dst = host->data_pa;
- flags |= DMA_COMPL_SRC_UNMAP_SINGLE | DMA_COMPL_SKIP_DEST_UNMAP;
} else {
dma_src = host->data_pa;
dma_dst = dma_addr;
- flags |= DMA_COMPL_DEST_UNMAP_SINGLE | DMA_COMPL_SKIP_SRC_UNMAP;
}
tx = dma_dev->device_prep_dma_memcpy(chan, dma_dst, dma_src,
len, flags);
-
if (!tx) {
dev_err(host->dev, "device_prep_dma_memcpy error\n");
- dma_unmap_single(dma_dev->dev, dma_addr, len, direction);
- return -EIO;
+ ret = -EIO;
+ goto unmap_dma;
}
tx->callback = dma_complete;
@@ -599,7 +598,7 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len,
ret = dma_submit_error(cookie);
if (ret) {
dev_err(host->dev, "dma_submit_error %d\n", cookie);
- return ret;
+ goto unmap_dma;
}
dma_async_issue_pending(chan);
@@ -610,10 +609,17 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len,
if (ret <= 0) {
chan->device->device_control(chan, DMA_TERMINATE_ALL, 0);
dev_err(host->dev, "wait_for_completion_timeout\n");
- return ret ? ret : -ETIMEDOUT;
+ if (!ret)
+ ret = -ETIMEDOUT;
+ goto unmap_dma;
}
- return 0;
+ ret = 0;
+
+unmap_dma:
+ dma_unmap_single(dma_dev->dev, dma_addr, len, direction);
+
+ return ret;
}
/*
@@ -937,42 +943,35 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
if (!res)
return -EINVAL;
- host->data_va = devm_request_and_ioremap(&pdev->dev, res);
- if (!host->data_va) {
- dev_err(&pdev->dev, "data ioremap failed\n");
- return -ENOMEM;
- }
+ host->data_va = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(host->data_va))
+ return PTR_ERR(host->data_va);
+
host->data_pa = (dma_addr_t)res->start;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_addr");
if (!res)
return -EINVAL;
- host->addr_va = devm_request_and_ioremap(&pdev->dev, res);
- if (!host->addr_va) {
- dev_err(&pdev->dev, "ale ioremap failed\n");
- return -ENOMEM;
- }
+ host->addr_va = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(host->addr_va))
+ return PTR_ERR(host->addr_va);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd");
if (!res)
return -EINVAL;
- host->cmd_va = devm_request_and_ioremap(&pdev->dev, res);
- if (!host->cmd_va) {
- dev_err(&pdev->dev, "ale ioremap failed\n");
- return -ENOMEM;
- }
+ host->cmd_va = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(host->cmd_va))
+ return PTR_ERR(host->cmd_va);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fsmc_regs");
if (!res)
return -EINVAL;
- host->regs_va = devm_request_and_ioremap(&pdev->dev, res);
- if (!host->regs_va) {
- dev_err(&pdev->dev, "regs ioremap failed\n");
- return -ENOMEM;
- }
+ host->regs_va = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(host->regs_va))
+ return PTR_ERR(host->regs_va);
host->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(host->clk)) {
@@ -1218,6 +1217,7 @@ static SIMPLE_DEV_PM_OPS(fsmc_nand_pm_ops, fsmc_nand_suspend, fsmc_nand_resume);
#ifdef CONFIG_OF
static const struct of_device_id fsmc_nand_id_table[] = {
{ .compatible = "st,spear600-fsmc-nand" },
+ { .compatible = "stericsson,fsmc-nand" },
{}
};
MODULE_DEVICE_TABLE(of, fsmc_nand_id_table);