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From: John Stultz <john.stultz@linaro.org>
To: lkml <linux-kernel@vger.kernel.org>
Cc: John Stultz <john.stultz@linaro.org>,
	Wei Xu <xuwei5@hisilicon.com>, Guodong Xu <guodong.xu@linaro.org>,
	Amit Pundir <amit.pundir@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	John Youn <johnyoun@synopsys.com>,
	Douglas Anderson <dianders@chromium.org>,
	Chen Yu <chenyu56@huawei.com>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Felipe Balbi <felipe.balbi@linux.intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-usb@vger.kernel.org
Subject: [RFC][PATCH 2/3] HACK: dwc2: force dual use of uphy and phy
Date: Tue, 22 Nov 2016 19:46:48 -0800	[thread overview]
Message-ID: <1479872809-11958-3-git-send-email-john.stultz@linaro.org> (raw)
In-Reply-To: <1479872809-11958-1-git-send-email-john.stultz@linaro.org>

I can't seem to figure out how to connect a generic phy device
to the usb UDC logic, as the dwc2 code seems to exclusively work
with either generic phys or usb-phys.

So to try to make this work with the phy-hi6220-usb driver, tweak
the dwc2 logic to support call hooks to both phy and uphy devices.

I realize this is likely wrong, but without a good pointer as to
how this should be done, I'm a bit wandering around in the dark.

Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: John Youn <johnyoun@synopsys.com>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Chen Yu <chenyu56@huawei.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/usb/dwc2/platform.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 8e1728b..8fb2f4d 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -297,7 +297,7 @@ static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)
 
 	if (hsotg->uphy)
 		ret = usb_phy_init(hsotg->uphy);
-	else if (hsotg->plat && hsotg->plat->phy_init)
+	if (hsotg->plat && hsotg->plat->phy_init)
 		ret = hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
 	else {
 		ret = phy_power_on(hsotg->phy);
@@ -411,7 +411,7 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg)
 		}
 	}
 
-	if (!hsotg->phy) {
+	if (1 || !hsotg->phy) {
 		hsotg->uphy = devm_usb_get_phy(hsotg->dev, USB_PHY_TYPE_USB2);
 		if (IS_ERR(hsotg->uphy)) {
 			ret = PTR_ERR(hsotg->uphy);
-- 
2.7.4

  parent reply	other threads:[~2016-11-23  3:55 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-23  3:46 [RFC][PATCH 0/3] Try to connect hikey's usb phy to dwc2 driver John Stultz
2016-11-23  3:46 ` [RFC][PATCH 1/3] phy: phy-hi6220-usb: Wire up extconn support to hikey's phy driver John Stultz
2016-12-01  8:23   ` Kishon Vijay Abraham I
2016-12-01 20:12     ` John Stultz
2016-12-03  1:07       ` John Youn
2016-11-23  3:46 ` John Stultz [this message]
2016-11-23  3:46 ` [RFC][PATCH 3/3] usb: dwc2: Avoid suspending if we're in gadget mode John Stultz
2016-12-01  1:35 ` [RFC][PATCH 0/3] Try to connect hikey's usb phy to dwc2 driver John Stultz

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