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Commit 6462cbd5 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: let non-DT platforms pass tx-fifo-resize flag; 



in case we're not in a DT boot, we should
still be able to tell the driver how to behave.

In order to be able to pass flags to the driver,
we introduce platform_data structure which the
core driver should use.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 1494a1f6

drivers/usb/dwc3/core.c

+6 −2
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ 
#include <linux/usb/ch9.h>

#include <linux/usb/gadget.h>



#include "platform_data.h"

#include "core.h"

#include "gadget.h"

#include "io.h"
@@ -350,6 +351,7 @@ static void dwc3_core_exit(struct dwc3 *dwc) 


static int dwc3_probe(struct platform_device *pdev)

{

	struct dwc3_platform_data *pdata = pdev->dev.platform_data;

	struct device_node	*node = pdev->dev.of_node;

	struct resource		*res;

	struct dwc3		*dwc;
@@ -412,9 +414,13 @@ static int dwc3_probe(struct platform_device *pdev) 
	if (node) {

		dwc->usb2_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 0);

		dwc->usb3_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 1);



		dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");

	} else {

		dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);

		dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);



		dwc->needs_fifo_resize = pdata->tx_fifo_resize;

	}



	if (IS_ERR(dwc->usb2_phy)) {
@@ -472,8 +478,6 @@ static int dwc3_probe(struct platform_device *pdev) 
	else

		dwc->maximum_speed = DWC3_DCFG_SUPERSPEED;



	dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");



	pm_runtime_enable(dev);

	pm_runtime_get_sync(dev);

	pm_runtime_forbid(dev);

drivers/usb/dwc3/platform_data.h

0 → 100644
+22 −0
Original line number Diff line number Diff line 
/**

 * platform_data.h - USB DWC3 Platform Data Support

 *

 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com

 * Author: Felipe Balbi <balbi@ti.com>

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2  of

 * the License as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */



struct dwc3_platform_data {

	bool tx_fifo_resize;

};