From 0ddd846f56a7648b9e70fb94a2b93b5b8b6ae335 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Wed, 17 Apr 2013 13:38:10 -0300 Subject: [PATCH] mtd: nand: pxa3xx: Use devm_ioremap_resource Using the new devm_ioremap_resource() we can greatly simplify resource handling. Signed-off-by: Ezequiel Garcia Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/pxa3xx_nand.c | 31 ++++--------------------------- 1 file changed, 4 insertions(+), 27 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 873eba56ff60..98b3cea078ce 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1108,30 +1108,16 @@ static int alloc_nand_resource(struct platform_device *pdev) } r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (r == NULL) { - dev_err(&pdev->dev, "no IO memory resource defined\n"); - ret = -ENODEV; + info->mmio_base = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(info->mmio_base)) { + ret = PTR_ERR(info->mmio_base); goto fail_put_clk; } - - r = request_mem_region(r->start, resource_size(r), pdev->name); - if (r == NULL) { - dev_err(&pdev->dev, "failed to request memory resource\n"); - ret = -EBUSY; - goto fail_put_clk; - } - - info->mmio_base = ioremap(r->start, resource_size(r)); - if (info->mmio_base == NULL) { - dev_err(&pdev->dev, "ioremap() failed\n"); - ret = -ENODEV; - goto fail_free_res; - } info->mmio_phys = r->start; ret = pxa3xx_nand_init_buff(info); if (ret) - goto fail_free_io; + goto fail_put_clk; /* initialize all interrupts to be disabled */ disable_int(info, NDSR_MASK); @@ -1155,10 +1141,6 @@ fail_free_buf: info->data_buff, info->data_buff_phys); } else kfree(info->data_buff); -fail_free_io: - iounmap(info->mmio_base); -fail_free_res: - release_mem_region(r->start, resource_size(r)); fail_put_clk: clk_disable(info->clk); clk_put(info->clk); @@ -1169,7 +1151,6 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) { struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); struct pxa3xx_nand_platform_data *pdata; - struct resource *r; int irq, cs; if (!info) @@ -1188,10 +1169,6 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) } else kfree(info->data_buff); - iounmap(info->mmio_base); - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(r->start, resource_size(r)); - clk_disable(info->clk); clk_put(info->clk); -- 2.20.1