Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Received-SPF: Fail (protection.outlook.com: domain of nxp.com does not
 designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com;
 client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net;
From:   Ran Wang <ran.wang_1@nxp.com>
To:     <linux-kernel@vger.kernel.org>, <linux-usb@vger.kernel.org>,
        <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        Felipe Balbi <balbi@kernel.org>
CC:     <robh+dt@kernel.org>, <mark.rutland@arm.com>, <kishon@ti.com>,
        <catalin.marinas@arm.com>, <will.deacon@arm.com>,
        <stern@rowland.harvard.edu>, <pku.leo@gmail.com>,
        <mathias.nyman@intel.com>, <gregkh@linuxfoundation.org>,
        <suresh.gupta@nxp.com>, <felipe.balbi@linux.intel.com>,
        Shawn Guo <shawnguo@kernel.org>,
        Sriram Dash <sriram.dash@nxp.com>,
        Li Yang <leoyang.li@nxp.com>,
        Hongtao Jia <hongtao.jia@nxp.com>,
        Ran Wang <ran.wang_1@nxp.com>
Subject: [PATCH v2 3/3] usb: dwc3: Enable USB 3.0 phy driver
Date:   Tue, 7 Nov 2017 15:20:55 +0800
Message-ID: <20171107072055.26945-3-ran.wang_1@nxp.com>
In-Reply-To: <20171107072055.26945-1-ran.wang_1@nxp.com>
References: <20171107072055.26945-1-ran.wang_1@nxp.com>
MIME-Version: 1.0
Content-Type: text/plain
SpamDiagnosticOutput: 1:99
SpamDiagnosticMetadata: NSPM
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Nov 2017 07:39:43.5715
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 60e8dffa-6f35-47ee-47e6-08d525b2b692
X-MS-Exchange-CrossTenant-Id: 5afe0b00-7697-4969-b663-5eab37d5f47e
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=5afe0b00-7697-4969-b663-5eab37d5f47e;Ip=[192.88.168.50];Helo=[tx30smr01.am.freescale.net]
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO2PR03MB2360
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Adds entry point at dwc3 core init function to enable
USB 3.0 PHY driver.

Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
---
Change in v2:
	- New file

 drivers/usb/dwc3/core.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 03474d3575ab..a9df03c64a7b 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -746,6 +746,8 @@ static int dwc3_core_init(struct dwc3 *dwc)
 {
 	u32			reg;
 	int			ret;
+	int			retval;
+	struct phy *phy;
 
 	if (!dwc3_core_is_valid(dwc)) {
 		dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
@@ -770,6 +772,19 @@ static int dwc3_core_init(struct dwc3 *dwc)
 	if (ret)
 		goto err0;
 
+	phy = phy_get(dwc->dev, "usb-phy");
+	if (IS_ERR(phy)) {
+		retval = PTR_ERR(phy);
+		if (retval == -EPROBE_DEFER)
+			dev_dbg(dwc->dev, "usb-phy no found\n");
+	} else {
+		retval = phy_init(phy);
+		if (retval) {
+			phy_put(phy);
+		    dev_dbg(dwc->dev, "phy_init() error!\n");
+		}
+	}
+
 	ret = dwc3_core_soft_reset(dwc);
 	if (ret)
 		goto err0;
-- 
2.14.1


From 1583495348829371670@xxx Wed Nov 08 11:00:44 +0000 2017
X-GM-THRID: 1583333049916108051
X-Gmail-Labels: Inbox,Category Forums,HistoricalUnread