From: Vivek Gautam <gautam.vivek@samsung.com>
To: linux-usb@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
        linux-samsung-soc@vger.kernel.org, gregkh@linuxfoundation.org,
        balbi@ti.com
Subject: [PATCH] usb: dwc3: Set DWC3 context's mode based on selected mode.
Date: Sat, 02 Mar 2013 18:55:24 +0530
Message-id: <1362230724-21017-1-git-send-email-gautam.vivek@samsung.com>
In-reply-to: <CAFp+6iGGAY=nMg03-bqHz=XuNP+1t9mQR=M53HGoqCXv=t+f0Q@mail.gmail.com>
References: <CAFp+6iGGAY=nMg03-bqHz=XuNP+1t9mQR=M53HGoqCXv=t+f0Q@mail.gmail.com>
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Sender: linux-kernel-owner@vger.kernel.org
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Now that machines may select the mode of working of DWC3 (HOST only,
GADGET only or DUAL_ROLE), lets set DWC3 mode based on that
rather than fixing it to whatever DWC3 hardware says.
This way we can skip initializing Gadget/Host in case
we are using Host-only/Gadget-only mode respectively.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
---

Changes from RFC patch "usb: dwc3: Set GCTL.PrtCapDir based on selected mode"
 - Setting the mode in dwc3 context structure based on
   selected mode in machine, rather than programming PrtCapDir

 drivers/usb/dwc3/core.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 79f335f..be0672f 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -478,7 +478,12 @@ static int dwc3_probe(struct platform_device *pdev)
 		goto err1;
 	}
 
-	mode = DWC3_MODE(dwc->hwparams.hwparams0);
+	if (IS_ENABLED(CONFIG_USB_DWC3_HOST))
+		mode = DWC3_MODE_HOST;
+	else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET))
+		mode = DWC3_MODE_DEVICE;
+	else
+		mode = DWC3_MODE_DRD;
 
 	switch (mode) {
 	case DWC3_MODE_DEVICE:
-- 
1.7.6.5

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