Commit 936c77c8 authored Jul 19, 2017 by Yoshihiro Shimoda Committed by Greg Kroah-Hartman Jul 27, 2017

usb: renesas_usbhs: fix usbhsc_resume() for !USBHSF_RUNTIME_PWCTRL

commit 59a0879a0e17b2e43ecdc5e3299da85b8410d7ce upstream.

This patch fixes an issue that some registers may be not initialized
after resume if the USBHSF_RUNTIME_PWCTRL is not set. Otherwise,
if a cable is not connected, the driver will not enable INTENB0.VBSE
after resume. And then, the driver cannot detect the VBUS.

Fixes: ca8a282a ("usb: gadget: renesas_usbhs: add suspend/resume support")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 92491596

drivers/usb/renesas_usbhs/common.c

+3 −1

Original line number	Original line	Diff line number	Diff line
	@@ -699,8 +699,10 @@ static int usbhsc_resume(struct device *dev)
	struct usbhs_priv *priv = dev_get_drvdata(dev);		struct usbhs_priv *priv = dev_get_drvdata(dev);
	struct platform_device *pdev = usbhs_priv_to_pdev(priv);		struct platform_device *pdev = usbhs_priv_to_pdev(priv);

	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))		if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) {
	usbhsc_power_ctrl(priv, 1);		usbhsc_power_ctrl(priv, 1);
			usbhs_mod_autonomy_mode(priv);
			}

	usbhs_platform_call(priv, phy_reset, pdev);		usbhs_platform_call(priv, phy_reset, pdev);