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authorLad, Prabhakar <prabhakar.csengg@gmail.com>2013-04-02 09:41:30 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-04-14 20:07:15 -0300
commit407ccc65bfd2899ed008c4f8900f23ac15f75f9f (patch)
treee1141d57865cae9072413db1ca57ed6c3357d2b9
parent3778d05036cc7ddd983ae2451da579af00acdac2 (diff)
[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>
-rw-r--r--drivers/media/platform/davinci/vpif.c24
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;
}

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