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authorFelipe Balbi <balbi@ti.com>2013-06-30 11:19:33 (GMT)
committerFelipe Balbi <balbi@ti.com>2013-07-29 10:56:46 (GMT)
commit6462cbd54d2fa649b27633267d8ddf835705e47a (patch)
treee1f6634558af44b76f2b81308b44a6878406bedc
parent1494a1f62bf7cf57345e9282c8189fe2a21fab64 (diff)
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: Felipe Balbi <balbi@ti.com>
-rw-r--r--drivers/usb/dwc3/core.c8
-rw-r--r--drivers/usb/dwc3/platform_data.h22
2 files changed, 28 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index f69e45a..cb1eb37 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -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);
diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h
new file mode 100644
index 0000000..0385164
--- /dev/null
+++ b/drivers/usb/dwc3/platform_data.h
@@ -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;
+};

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