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Commit ca8a282a authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Felipe Balbi
Browse files

usb: gadget: renesas_usbhs: add suspend/resume support 



Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 4bb99b7c

drivers/usb/renesas_usbhs/common.c

+64 −5
Original line number Original line Diff line number Diff line
@@ -203,13 +203,10 @@ static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable) 
}

}





/*

/*

 *		notify hotplug

 *		hotplug

 */

 */

static void usbhsc_notify_hotplug(struct work_struct *work)

static void usbhsc_hotplug(struct usbhs_priv *priv)

{

{

	struct usbhs_priv *priv = container_of(work,

					       struct usbhs_priv,

					       notify_hotplug_work.work);

	struct platform_device *pdev = usbhs_priv_to_pdev(priv);

	struct platform_device *pdev = usbhs_priv_to_pdev(priv);

	struct usbhs_mod *mod = usbhs_mod_get_current(priv);

	struct usbhs_mod *mod = usbhs_mod_get_current(priv);

	int id;

	int id;
@@ -257,6 +254,17 @@ static void usbhsc_notify_hotplug(struct work_struct *work) 
	}

	}

}

}





/*

 *		notify hotplug

 */

static void usbhsc_notify_hotplug(struct work_struct *work)

{

	struct usbhs_priv *priv = container_of(work,

					       struct usbhs_priv,

					       notify_hotplug_work.work);

	usbhsc_hotplug(priv);

}



int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)

int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)

{

{

	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);

	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
@@ -443,9 +451,60 @@ static int __devexit usbhs_remove(struct platform_device *pdev) 
	return 0;

	return 0;

}

}





static int usbhsc_suspend(struct device *dev)

{

	struct usbhs_priv *priv = dev_get_drvdata(dev);

	struct usbhs_mod *mod = usbhs_mod_get_current(priv);



	if (mod) {

		usbhs_mod_call(priv, stop, priv);

		usbhs_mod_change(priv, -1);

	}



	if (mod || !usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))

		usbhsc_power_ctrl(priv, 0);



	return 0;

}



static int usbhsc_resume(struct device *dev)

{

	struct usbhs_priv *priv = dev_get_drvdata(dev);

	struct platform_device *pdev = usbhs_priv_to_pdev(priv);



	usbhs_platform_call(priv, phy_reset, pdev);



	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))

		usbhsc_power_ctrl(priv, 1);



	usbhsc_hotplug(priv);



	return 0;

}



static int usbhsc_runtime_nop(struct device *dev)

{

	/* Runtime PM callback shared between ->runtime_suspend()

	 * and ->runtime_resume(). Simply returns success.

	 *

	 * This driver re-initializes all registers after

	 * pm_runtime_get_sync() anyway so there is no need

	 * to save and restore registers here.

	 */

	return 0;

}



static const struct dev_pm_ops usbhsc_pm_ops = {

	.suspend		= usbhsc_suspend,

	.resume			= usbhsc_resume,

	.runtime_suspend	= usbhsc_runtime_nop,

	.runtime_resume		= usbhsc_runtime_nop,

};



static struct platform_driver renesas_usbhs_driver = {

static struct platform_driver renesas_usbhs_driver = {

	.driver		= {

	.driver		= {

		.name	= "renesas_usbhs",

		.name	= "renesas_usbhs",

		.pm	= &usbhsc_pm_ops,

	},

	},

	.probe		= usbhs_probe,

	.probe		= usbhs_probe,

	.remove		= __devexit_p(usbhs_remove),

	.remove		= __devexit_p(usbhs_remove),