Commit 407ccc65 authored by Lad, Prabhakar's avatar Lad, Prabhakar Committed by Mauro Carvalho Chehab

[media] davinci: vpif: add pm_runtime support

Add pm_runtime support to the TI Davinci VPIF driver.
Signed-off-by: default avatarLad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 3778d050
......@@ -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 @@ static int vpif_probe(struct platform_device *pdev)
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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