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authorFelipe Balbi <balbi@ti.com>2012-07-19 14:09:48 +0300
committerFelipe Balbi <balbi@ti.com>2012-09-10 19:29:43 +0300
commit51e1e7bcef53e6a91cfffff0145ab315def61f61 (patch)
tree5c8abd62f7d4b9a64208b8f2eababc948b158832 /drivers/usb/dwc3
parentd720f057fda4bae91a5108a11587374b9e396c6a (diff)
usb: dwc3: add basic PHY support
this will let us control PHYs on platforms which need them. Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3')
-rw-r--r--drivers/usb/dwc3/core.c15
-rw-r--r--drivers/usb/dwc3/core.h5
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index c34452a7304..79a24fab13d 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -50,6 +50,7 @@
#include <linux/dma-mapping.h>
#include <linux/of.h>
+#include <linux/usb/otg.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
@@ -136,6 +137,8 @@ static void dwc3_core_soft_reset(struct dwc3 *dwc)
reg |= DWC3_GUSB2PHYCFG_PHYSOFTRST;
dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+ usb_phy_init(dwc->usb2_phy);
+ usb_phy_init(dwc->usb3_phy);
mdelay(100);
/* Clear USB3 PHY reset */
@@ -465,6 +468,18 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
return -ENOMEM;
}
+ dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+ if (IS_ERR_OR_NULL(dwc->usb2_phy)) {
+ dev_err(dev, "no usb2 phy configured\n");
+ return -EPROBE_DEFER;
+ }
+
+ dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);
+ if (IS_ERR_OR_NULL(dwc->usb3_phy)) {
+ dev_err(dev, "no usb3 phy configured\n");
+ return -EPROBE_DEFER;
+ }
+
spin_lock_init(&dwc->lock);
platform_set_drvdata(pdev, dwc);
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 151eca876df..dbc5713d84f 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -624,6 +624,8 @@ struct dwc3_scratchpad_array {
* @maximum_speed: maximum speed requested (mainly for testing purposes)
* @revision: revision register contents
* @mode: mode of operation
+ * @usb2_phy: pointer to USB2 PHY
+ * @usb3_phy: pointer to USB3 PHY
* @is_selfpowered: true when we are selfpowered
* @three_stage_setup: set if we perform a three phase setup
* @ep0_bounced: true when we used bounce buffer
@@ -667,6 +669,9 @@ struct dwc3 {
struct usb_gadget gadget;
struct usb_gadget_driver *gadget_driver;
+ struct usb_phy *usb2_phy;
+ struct usb_phy *usb3_phy;
+
void __iomem *regs;
size_t regs_size;