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-rw-r--r--drivers/usb/chipidea/ci.h5
-rw-r--r--drivers/usb/chipidea/core.c83
-rw-r--r--drivers/usb/chipidea/host.c5
-rw-r--r--drivers/usb/chipidea/otg_fsm.c6
-rw-r--r--include/linux/usb/chipidea.h2
5 files changed, 80 insertions, 21 deletions
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 9015139a8027..5bbfcc73cf70 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -161,7 +161,8 @@ struct hw_bank {
* @test_mode: the selected test mode
* @platdata: platform specific information supplied by parent device
* @vbus_active: is VBUS active
- * @usb_phy: pointer to USB PHY, if any
+ * @phy: pointer to PHY, if any
+ * @usb_phy: pointer to USB PHY, if any and if using the USB PHY framework
* @hcd: pointer to usb_hcd for ehci host driver
* @debugfs: root dentry for this controller in debugfs
* @id_event: indicates there is an id event, and handled at ci_otg_work
@@ -202,6 +203,8 @@ struct ci_hdrc {
struct ci_hdrc_platform_data *platdata;
int vbus_active;
+ struct phy *phy;
+ /* old usb_phy interface */
struct usb_phy *usb_phy;
struct usb_hcd *hcd;
struct dentry *debugfs;
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 30f89426bf05..60578d9c896d 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -47,6 +47,7 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/idr.h>
@@ -299,6 +300,49 @@ static void hw_phymode_configure(struct ci_hdrc *ci)
}
/**
+ * _ci_usb_phy_init: initialize phy taking in account both phy and usb_phy
+ * interfaces
+ * @ci: the controller
+ *
+ * This function returns an error code if the phy failed to init
+ */
+static int _ci_usb_phy_init(struct ci_hdrc *ci)
+{
+ int ret;
+
+ if (ci->phy) {
+ ret = phy_init(ci->phy);
+ if (ret)
+ return ret;
+
+ ret = phy_power_on(ci->phy);
+ if (ret) {
+ phy_exit(ci->phy);
+ return ret;
+ }
+ } else {
+ ret = usb_phy_init(ci->usb_phy);
+ }
+
+ return ret;
+}
+
+/**
+ * _ci_usb_phy_exit: deinitialize phy taking in account both phy and usb_phy
+ * interfaces
+ * @ci: the controller
+ */
+static void ci_usb_phy_exit(struct ci_hdrc *ci)
+{
+ if (ci->phy) {
+ phy_power_off(ci->phy);
+ phy_exit(ci->phy);
+ } else {
+ usb_phy_shutdown(ci->usb_phy);
+ }
+}
+
+/**
* ci_usb_phy_init: initialize phy according to different phy type
* @ci: the controller
*
@@ -312,7 +356,7 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
case USBPHY_INTERFACE_MODE_UTMI:
case USBPHY_INTERFACE_MODE_UTMIW:
case USBPHY_INTERFACE_MODE_HSIC:
- ret = usb_phy_init(ci->usb_phy);
+ ret = _ci_usb_phy_init(ci);
if (ret)
return ret;
hw_phymode_configure(ci);
@@ -320,12 +364,12 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
case USBPHY_INTERFACE_MODE_ULPI:
case USBPHY_INTERFACE_MODE_SERIAL:
hw_phymode_configure(ci);
- ret = usb_phy_init(ci->usb_phy);
+ ret = _ci_usb_phy_init(ci);
if (ret)
return ret;
break;
default:
- ret = usb_phy_init(ci->usb_phy);
+ ret = _ci_usb_phy_init(ci);
}
return ret;
@@ -605,23 +649,26 @@ static int ci_hdrc_probe(struct platform_device *pdev)
return -ENODEV;
}
- if (ci->platdata->usb_phy)
+ if (ci->platdata->phy) {
+ ci->phy = ci->platdata->phy;
+ } else if (ci->platdata->usb_phy) {
ci->usb_phy = ci->platdata->usb_phy;
- else
+ } else {
+ ci->phy = devm_phy_get(dev, "usb-phy");
ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
- if (IS_ERR(ci->usb_phy)) {
- ret = PTR_ERR(ci->usb_phy);
- /*
- * if -ENXIO is returned, it means PHY layer wasn't
- * enabled, so it makes no sense to return -EPROBE_DEFER
- * in that case, since no PHY driver will ever probe.
- */
- if (ret == -ENXIO)
- return ret;
+ /* if both generic PHY and USB PHY layers aren't enabled */
+ if (PTR_ERR(ci->phy) == -ENOSYS &&
+ PTR_ERR(ci->usb_phy) == -ENXIO)
+ return -ENXIO;
+
+ if (IS_ERR(ci->phy) && IS_ERR(ci->usb_phy))
+ return -EPROBE_DEFER;
- dev_err(dev, "no usb2 phy configured\n");
- return -EPROBE_DEFER;
+ if (IS_ERR(ci->phy))
+ ci->phy = NULL;
+ else if (IS_ERR(ci->usb_phy))
+ ci->usb_phy = NULL;
}
ret = ci_usb_phy_init(ci);
@@ -728,7 +775,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
stop:
ci_role_destroy(ci);
deinit_phy:
- usb_phy_shutdown(ci->usb_phy);
+ ci_usb_phy_exit(ci);
return ret;
}
@@ -741,7 +788,7 @@ static int ci_hdrc_remove(struct platform_device *pdev)
free_irq(ci->irq, ci);
ci_role_destroy(ci);
ci_hdrc_enter_lpm(ci, true);
- usb_phy_shutdown(ci->usb_phy);
+ ci_usb_phy_exit(ci);
return 0;
}
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 789809f680aa..4f8eb40ad93a 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -59,8 +59,11 @@ static int host_start(struct ci_hdrc *ci)
hcd->has_tt = 1;
hcd->power_budget = ci->platdata->power_budget;
- hcd->usb_phy = ci->usb_phy;
hcd->tpl_support = ci->platdata->tpl_support;
+ if (ci->phy)
+ hcd->phy = ci->phy;
+ else
+ hcd->usb_phy = ci->usb_phy;
ehci = hcd_to_ehci(hcd);
ehci->caps = ci->hw_bank.cap;
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 862d7cb01b92..3c2ab1ae00fc 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -779,7 +779,11 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
{
int retval = 0;
- ci->otg.usb_phy = ci->usb_phy;
+ if (ci->phy)
+ ci->otg.phy = ci->phy;
+ else
+ ci->otg.usb_phy = ci->usb_phy;
+
ci->otg.gadget = &ci->gadget;
ci->fsm.otg = &ci->otg;
ci->fsm.power_up = 1;
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index 4fe161a84c7d..c01bf4ea27b9 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -13,6 +13,8 @@ struct ci_hdrc_platform_data {
/* offset of the capability registers */
uintptr_t capoffset;
unsigned power_budget;
+ struct phy *phy;
+ /* old usb_phy interface */
struct usb_phy *usb_phy;
enum usb_phy_interface phy_mode;
unsigned long flags;
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-11 05:56:02 +0300