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authorLad, Prabhakar <prabhakar.csengg@gmail.com>2013-06-17 11:20:42 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-06-21 11:25:09 -0300
commitc7f808d19d344a33f6687a0558553a415eca2902 (patch)
treee675d1120d87dd4e005c6dce5e23b12e15951e57 /drivers/media/platform/davinci
parent01105690c40ceafc28df15e8b3eae6cd668229d5 (diff)
downloadlinux-c7f808d19d344a33f6687a0558553a415eca2902.tar.bz2
[media] media: davinci: vpif: Convert to devm_* api
Use devm_ioremap_resource instead of reques_mem_region()/ioremap(). This ensures more consistent error values and simplifies error paths. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/platform/davinci')
-rw-r--r--drivers/media/platform/davinci/vpif.c27
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/media/platform/davinci/vpif.c b/drivers/media/platform/davinci/vpif.c
index 761c8259a8af..164c1b7b4e6f 100644
--- a/drivers/media/platform/davinci/vpif.c
+++ b/drivers/media/platform/davinci/vpif.c
@@ -37,8 +37,6 @@ MODULE_LICENSE("GPL");
#define VPIF_CH2_MAX_MODES (15)
#define VPIF_CH3_MAX_MODES (02)
-static resource_size_t res_len;
-static struct resource *res;
spinlock_t vpif_lock;
void __iomem *vpif_base;
@@ -421,23 +419,12 @@ EXPORT_SYMBOL(vpif_channel_getfid);
static int vpif_probe(struct platform_device *pdev)
{
- int status = 0;
+ static struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENOENT;
-
- res_len = resource_size(res);
-
- res = request_mem_region(res->start, res_len, res->name);
- if (!res)
- return -EBUSY;
-
- vpif_base = ioremap(res->start, res_len);
- if (!vpif_base) {
- status = -EBUSY;
- goto fail;
- }
+ vpif_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(vpif_base))
+ return PTR_ERR(vpif_base);
pm_runtime_enable(&pdev->dev);
pm_runtime_get(&pdev->dev);
@@ -445,17 +432,11 @@ static int vpif_probe(struct platform_device *pdev)
spin_lock_init(&vpif_lock);
dev_info(&pdev->dev, "vpif probe success\n");
return 0;
-
-fail:
- release_mem_region(res->start, res_len);
- return status;
}
static int vpif_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
- iounmap(vpif_base);
- release_mem_region(res->start, res_len);
return 0;
}