This commit adds sleepwalk/wake and suspend/resume interfaces
to Tegra XUSB PHY driver.
Signed-off-by: JC Kuo <jckuo@xxxxxxxxxx>
---
drivers/phy/tegra/xusb.c | 78 ++++++++++++++++++++++++++++++++++
drivers/phy/tegra/xusb.h | 8 ++++
include/linux/phy/tegra/xusb.h | 12 ++++++
3 files changed, 98 insertions(+)
diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c
index 7fbba53f6097..14461d59b947 100644
--- a/drivers/phy/tegra/xusb.c
+++ b/drivers/phy/tegra/xusb.c
@@ -975,10 +975,36 @@ static int tegra_xusb_padctl_remove(struct platform_device *pdev)
return err;
}
+static int tegra_xusb_padctl_suspend_noirq(struct device *dev)
+{
+ struct tegra_xusb_padctl *padctl = dev_get_drvdata(dev);
+
+ if (padctl->soc->ops->suspend_noirq)
+ return padctl->soc->ops->suspend_noirq(padctl);
+
+ return 0;
+}
+
+static int tegra_xusb_padctl_resume_noirq(struct device *dev)
+{
+ struct tegra_xusb_padctl *padctl = dev_get_drvdata(dev);
+
+ if (padctl->soc->ops->resume_noirq)
+ return padctl->soc->ops->resume_noirq(padctl);
+
+ return 0;
+}
+
+static const struct dev_pm_ops tegra_xusb_padctl_pm_ops = {
+ SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(tegra_xusb_padctl_suspend_noirq,
+ tegra_xusb_padctl_resume_noirq)
+};
+
static struct platform_driver tegra_xusb_padctl_driver = {
.driver = {
.name = "tegra-xusb-padctl",
.of_match_table = tegra_xusb_padctl_of_match,
+ .pm = &tegra_xusb_padctl_pm_ops,
},
.probe = tegra_xusb_padctl_probe,
.remove = tegra_xusb_padctl_remove,
@@ -1045,6 +1071,58 @@ int tegra_xusb_padctl_hsic_set_idle(struct tegra_xusb_padctl *padctl,
}
EXPORT_SYMBOL_GPL(tegra_xusb_padctl_hsic_set_idle);
+int tegra_xusb_padctl_enable_phy_sleepwalk(struct tegra_xusb_padctl *padctl,
+ struct phy *phy,
+ enum usb_device_speed speed)
+{
+ if (padctl->soc->ops->phy_sleepwalk)
+ return padctl->soc->ops->phy_sleepwalk(padctl, phy, true,
+ speed);
+
+ return -ENOTSUPP;
+}
+EXPORT_SYMBOL_GPL(tegra_xusb_padctl_enable_phy_sleepwalk);
+
+int tegra_xusb_padctl_disable_phy_sleepwalk(struct tegra_xusb_padctl *padctl,
+ struct phy *phy)
+{
+ if (padctl->soc->ops->phy_sleepwalk)
+ return padctl->soc->ops->phy_sleepwalk(padctl, phy, false, 0);
+
+ return -ENOTSUPP;
+}
+EXPORT_SYMBOL_GPL(tegra_xusb_padctl_disable_phy_sleepwalk);
+
+int tegra_xusb_padctl_enable_phy_wake(struct tegra_xusb_padctl *padctl,
+ struct phy *phy)
+{
+ if (padctl->soc->ops->phy_wake)
+ return padctl->soc->ops->phy_wake(padctl, phy, true);
+
+ return -ENOTSUPP;
+}
+EXPORT_SYMBOL_GPL(tegra_xusb_padctl_enable_phy_wake);
+
+int tegra_xusb_padctl_disable_phy_wake(struct tegra_xusb_padctl *padctl,
+ struct phy *phy)
+{
+ if (padctl->soc->ops->phy_wake)
+ return padctl->soc->ops->phy_wake(padctl, phy, false);
+
+ return -ENOTSUPP;
+}
+EXPORT_SYMBOL_GPL(tegra_xusb_padctl_disable_phy_wake);
+
+int tegra_xusb_padctl_remote_wake_detected(struct tegra_xusb_padctl *padctl,
+ struct phy *phy)
+{
+ if (padctl->soc->ops->remote_wake_detected)
+ return padctl->soc->ops->remote_wake_detected(phy);
+
+ return -ENOTSUPP;
+}
+EXPORT_SYMBOL_GPL(tegra_xusb_padctl_remote_wake_detected);
+
int tegra_xusb_padctl_usb3_set_lfps_detect(struct tegra_xusb_padctl *padctl,
unsigned int port, bool enable)
{
diff --git a/drivers/phy/tegra/xusb.h b/drivers/phy/tegra/xusb.h
index 1bfe14b2a274..9482914536ac 100644
--- a/drivers/phy/tegra/xusb.h
+++ b/drivers/phy/tegra/xusb.h
@@ -11,6 +11,7 @@
#include <linux/mutex.h>
#include <linux/workqueue.h>
+#include <linux/usb/ch9.h>
#include <linux/usb/otg.h>
/* legacy entry points for backwards-compatibility */
@@ -368,12 +369,19 @@ struct tegra_xusb_padctl_ops {
const struct tegra_xusb_padctl_soc *soc);
void (*remove)(struct tegra_xusb_padctl *padctl);
+ int (*suspend_noirq)(struct tegra_xusb_padctl *padctl);
+ int (*resume_noirq)(struct tegra_xusb_padctl *padctl);
int (*usb3_save_context)(struct tegra_xusb_padctl *padctl,
unsigned int index);
int (*hsic_set_idle)(struct tegra_xusb_padctl *padctl,
unsigned int index, bool idle);
int (*usb3_set_lfps_detect)(struct tegra_xusb_padctl *padctl,
unsigned int index, bool enable);
+ int (*phy_sleepwalk)(struct tegra_xusb_padctl *padctl, struct phy *phy,
+ bool enable, enum usb_device_speed speed);
+ int (*phy_wake)(struct tegra_xusb_padctl *padctl, struct phy *phy,
+ bool enable);
+ int (*remote_wake_detected)(struct phy *phy);
};
struct tegra_xusb_padctl_soc {
diff --git a/include/linux/phy/tegra/xusb.h b/include/linux/phy/tegra/xusb.h
index ee59562c8354..2fb12e3baaee 100644
--- a/include/linux/phy/tegra/xusb.h
+++ b/include/linux/phy/tegra/xusb.h
@@ -8,6 +8,7 @@
struct tegra_xusb_padctl;
struct device;
+enum usb_device_speed;
struct tegra_xusb_padctl *tegra_xusb_padctl_get(struct device *dev);
void tegra_xusb_padctl_put(struct tegra_xusb_padctl *padctl);
@@ -18,5 +19,16 @@ int tegra_xusb_padctl_hsic_set_idle(struct tegra_xusb_padctl *padctl,
unsigned int port, bool idle);
int tegra_xusb_padctl_usb3_set_lfps_detect(struct tegra_xusb_padctl *padctl,
unsigned int port, bool enable);
+int tegra_xusb_padctl_enable_phy_sleepwalk(struct tegra_xusb_padctl *padctl,
+ struct phy *phy,
+ enum usb_device_speed speed);
+int tegra_xusb_padctl_disable_phy_sleepwalk(struct tegra_xusb_padctl *padctl,
+ struct phy *phy);
+int tegra_xusb_padctl_enable_phy_wake(struct tegra_xusb_padctl *padctl,
+ struct phy *phy);
+int tegra_xusb_padctl_disable_phy_wake(struct tegra_xusb_padctl *padctl,
+ struct phy *phy);
+int tegra_xusb_padctl_remote_wake_detected(struct tegra_xusb_padctl *padctl,
+ struct phy *phy);
#endif /* PHY_TEGRA_XUSB_H */
--
2.17.1
