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

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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: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2013-06-30 14:19:33 +03:00
parent 1494a1f62b
commit 6462cbd54d
2 changed files with 28 additions and 2 deletions
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8
drivers/usb/dwc3/core.c
View File

@ -37,6 +37,7 @@
#include <linux/usb/ch9.h> #include <linux/usb/ch9.h>
#include <linux/usb/gadget.h> #include <linux/usb/gadget.h>
#include "platform_data.h"
#include "core.h" #include "core.h"
#include "gadget.h" #include "gadget.h"
#include "io.h" #include "io.h"
@ -350,6 +351,7 @@ static void dwc3_core_exit(struct dwc3 *dwc)
static int dwc3_probe(struct platform_device *pdev) 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 device_node *node = pdev->dev.of_node;
struct resource *res; struct resource *res;
struct dwc3 *dwc; struct dwc3 *dwc;
@ -412,9 +414,13 @@ static int dwc3_probe(struct platform_device *pdev)
if (node) { if (node) {
dwc->usb2_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 0); 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->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 { } else {
dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); 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->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)) { if (IS_ERR(dwc->usb2_phy)) {
@ -472,8 +478,6 @@ static int dwc3_probe(struct platform_device *pdev)
else else
dwc->maximum_speed = DWC3_DCFG_SUPERSPEED; dwc->maximum_speed = DWC3_DCFG_SUPERSPEED;
dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
pm_runtime_enable(dev); pm_runtime_enable(dev);
pm_runtime_get_sync(dev); pm_runtime_get_sync(dev);
pm_runtime_forbid(dev); pm_runtime_forbid(dev);

22
drivers/usb/dwc3/platform_data.h Normal file
View File

@ -0,0 +1,22 @@
/**
* 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;
};