| From | Willy Tarreau <> | Subject | [PATCH 3.10 035/139] usb: renesas_usbhs: fix usbhsc_resume() for !USBHSF_RUNTIME_PWCTRL | Date | Wed, 1 Nov 2017 22:17:35 +0100 |
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From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
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: ca8a282a5373 ("usb: gadget: renesas_usbhs: add suspend/resume support") Cc: <stable@vger.kernel.org> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Willy Tarreau <w@1wt.eu> --- drivers/usb/renesas_usbhs/common.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index cfd2050..a4b0273 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -600,8 +600,10 @@ static int usbhsc_resume(struct device *dev) struct usbhs_priv *priv = dev_get_drvdata(dev); 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); + usbhs_mod_autonomy_mode(priv); + } usbhs_platform_call(priv, phy_reset, pdev); -- 2.8.0.rc2.1.gbe9624a
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