From: <dinguyen@opensource.altera.com>
To: <johnyoun@synopsys.com>
Cc: <dinh.linux@gmail.com>, <linux-usb@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Dinh Nguyen <dinguyen@opensource.altera.com>,
Gregory Herrero <gregory.herrero@intel.com>,
Mian Yousaf Kaukab <yousaf.kaukab@intel.com>,
Felipe Balbi <balbi@ti.com>
Subject: [PATCH] usb: dwc2: fix unnecessary USB overcurrent condition
Date: Tue, 26 May 2015 21:26:05 -0500 [thread overview]
Message-ID: <1432693565-31475-1-git-send-email-dinguyen@opensource.altera.com> (raw)
From: Dinh Nguyen <dinguyen@opensource.altera.com>
For platforms that use a ULPI phy, we should enable the external VbusValid
signal instead.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Gregory Herrero <gregory.herrero@intel.com>
Cc: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Cc: Felipe Balbi <balbi@ti.com>
---
drivers/usb/dwc2/core.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index e5b546f..08ffdc6 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -807,6 +807,11 @@ int dwc2_core_init(struct dwc2_hsotg *hsotg, bool select_phy, int irq)
if (hsotg->core_params->ts_dline > 0)
usbcfg |= GUSBCFG_TERMSELDLPULSE;
+ /* Set external VBUS indicator as needed. */
+ if (hsotg->core_params->phy_type == DWC2_PHY_TYPE_PARAM_ULPI)
+ usbcfg |= (GUSBCFG_ULPI_INT_VBUS_IND |
+ GUSBCFG_INDICATORPASSTHROUGH);
+
writel(usbcfg, hsotg->regs + GUSBCFG);
/* Reset the Controller */
--
2.2.1
next reply other threads:[~2015-05-27 2:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-27 2:26 dinguyen [this message]
2015-06-10 2:12 ` John Youn
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