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Commit 6e267da8 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Greg Kroah-Hartman
Browse files

usb: renesas_usbhs: add power control function 



Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 206dcc2c

drivers/usb/renesas_usbhs/common.c

+29 −13
Original line number Diff line number Diff line
@@ -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);