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usb: renesas_usbhs: add power control function

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Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kuninori Morimoto 2011-04-28 16:41:02 +09:00 committed by Greg Kroah-Hartman
parent 206dcc2cfe
commit 6e267da8f1
1 changed files with 29 additions and 13 deletions
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42
drivers/usb/renesas_usbhs/common.c
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@ -148,7 +148,31 @@ static u32 usbhsc_default_pipe_type[] = {
};
/*
* driver callback functions
* power control
*/
static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable)
{
struct device *dev = usbhs_priv_to_dev(priv);
if (enable) {
/* enable PM */
pm_runtime_get_sync(dev);
/* USB on */
usbhs_sys_clock_ctrl(priv, enable);
usbhsc_bus_ctrl(priv, enable);
} else {
/* USB off */
usbhsc_bus_ctrl(priv, enable);
usbhs_sys_clock_ctrl(priv, enable);
/* disable PM */
pm_runtime_put_sync(dev);
}
}
/*
* notify hotplug
*/
static void usbhsc_notify_hotplug(struct work_struct *work)
{
@ -178,12 +202,8 @@ static void usbhsc_notify_hotplug(struct work_struct *work)
dev_dbg(&pdev->dev, "%s enable\n", __func__);
/* enable PM */
pm_runtime_get_sync(&pdev->dev);
/* USB on */
usbhs_sys_clock_ctrl(priv, enable);
usbhsc_bus_ctrl(priv, enable);
/* power on */
usbhsc_power_ctrl(priv, enable);
/* module start */
usbhs_mod_call(priv, start, priv);
@ -194,12 +214,8 @@ static void usbhsc_notify_hotplug(struct work_struct *work)
/* module stop */
usbhs_mod_call(priv, stop, priv);
/* USB off */
usbhsc_bus_ctrl(priv, enable);
usbhs_sys_clock_ctrl(priv, enable);
/* disable PM */
pm_runtime_put_sync(&pdev->dev);
/* power off */
usbhsc_power_ctrl(priv, enable);
usbhs_mod_change(priv, -1);