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usb: host: ehci-platform: Add basic runtime PM support

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Like the runtime PM support patch of ohci-platform, we
add the same basic runtime PM for ehci-platform.

Change-Id: I84cbb15dd393e6af69b4cf6887f1628e2cba4999
Signed-off-by: William Wu <william.wu@rock-chips.com>
This commit is contained in:
William Wu
2018-12-06 19:40:16 +08:00
committed by Tao Huang
parent cf15e865dd
commit 747277acfe
1 changed files with 9 additions and 0 deletions
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9
drivers/usb/host/ehci-platform.c
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@@ -30,6 +30,7 @@
#include <linux/of.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
@@ -308,6 +309,9 @@ static int ehci_platform_probe(struct platform_device *dev)
}
#endif
pm_runtime_set_active(&dev->dev);
pm_runtime_enable(&dev->dev);
pm_runtime_get_sync(&dev->dev);
if (pdata->power_on) {
err = pdata->power_on(dev);
if (err < 0)
@@ -341,6 +345,8 @@ err_power:
if (pdata->power_off)
pdata->power_off(dev);
err_reset:
pm_runtime_put_sync(&dev->dev);
pm_runtime_disable(&dev->dev);
if (priv->rst)
reset_control_assert(priv->rst);
err_put_clks:
@@ -375,6 +381,9 @@ static int ehci_platform_remove(struct platform_device *dev)
usb_put_hcd(hcd);
pm_runtime_put_sync(&dev->dev);
pm_runtime_disable(&dev->dev);
if (pdata == &ehci_platform_defaults)
dev->dev.platform_data = NULL;