diff options
| author | Lad, Prabhakar <prabhakar.csengg@gmail.com> | 2013-04-02 16:41:30 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-04-15 03:07:15 +0400 |
| commit | 407ccc65bfd2899ed008c4f8900f23ac15f75f9f (patch) | |
| tree | e1141d57865cae9072413db1ca57ed6c3357d2b9 /drivers/media | |
| parent | 3778d05036cc7ddd983ae2451da579af00acdac2 (diff) | |
| download | linux-407ccc65bfd2899ed008c4f8900f23ac15f75f9f.tar.xz | |
[media] davinci: vpif: add pm_runtime support
Add pm_runtime support to the TI Davinci VPIF driver.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/davinci/vpif.c | 24 |
1 files changed, 6 insertions, 18 deletions
diff --git a/drivers/media/platform/davinci/vpif.c b/drivers/media/platform/davinci/vpif.c index 3bc4db8f0f27..ea82a8bd2803 100644 --- a/drivers/media/platform/davinci/vpif.c +++ b/drivers/media/platform/davinci/vpif.c @@ -23,8 +23,8 @@ #include <linux/spinlock.h> #include <linux/kernel.h> #include <linux/io.h> -#include <linux/clk.h> #include <linux/err.h> +#include <linux/pm_runtime.h> #include <linux/v4l2-dv-timings.h> #include <mach/hardware.h> @@ -46,8 +46,6 @@ spinlock_t vpif_lock; void __iomem *vpif_base; EXPORT_SYMBOL_GPL(vpif_base); -struct clk *vpif_clk; - /** * vpif_ch_params: video standard configuration parameters for vpif * The table must include all presets from supported subdevices. @@ -443,19 +441,13 @@ static int vpif_probe(struct platform_device *pdev) goto fail; } - vpif_clk = clk_get(&pdev->dev, "vpif"); - if (IS_ERR(vpif_clk)) { - status = PTR_ERR(vpif_clk); - goto clk_fail; - } - clk_prepare_enable(vpif_clk); + pm_runtime_enable(&pdev->dev); + pm_runtime_get(&pdev->dev); spin_lock_init(&vpif_lock); dev_info(&pdev->dev, "vpif probe success\n"); return 0; -clk_fail: - iounmap(vpif_base); fail: release_mem_region(res->start, res_len); return status; @@ -463,11 +455,7 @@ fail: static int vpif_remove(struct platform_device *pdev) { - if (vpif_clk) { - clk_disable_unprepare(vpif_clk); - clk_put(vpif_clk); - } - + pm_runtime_disable(&pdev->dev); iounmap(vpif_base); release_mem_region(res->start, res_len); return 0; @@ -476,13 +464,13 @@ static int vpif_remove(struct platform_device *pdev) #ifdef CONFIG_PM static int vpif_suspend(struct device *dev) { - clk_disable_unprepare(vpif_clk); + pm_runtime_put(dev); return 0; } static int vpif_resume(struct device *dev) { - clk_prepare_enable(vpif_clk); + pm_runtime_get(dev); return 0; } |