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authorXu Yang <xu.yang_2@nxp.com>2025-06-14 20:56:44 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-06-19 12:28:25 +0200
commit1a76b634da5e2b9ff240a0639f4af4fd075c9093 (patch)
tree657dd2c8f29fe305a1f433a4d911d8ac19805634
parentusb: chipidea: udc: add CI_HDRC_CONTROLLER_PULLUP_EVENT event (diff)
downloadwireguard-linux-1a76b634da5e2b9ff240a0639f4af4fd075c9093.tar.xz
wireguard-linux-1a76b634da5e2b9ff240a0639f4af4fd075c9093.zip
usb: chipidea: imx: add imx_usbmisc_pullup() hook
It's used to do other pullup related operations if needs. Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Acked-by: Peter Chen <peter.chen@kernel.org> Link: https://lore.kernel.org/r/20250614125645.207732-3-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/chipidea/ci_hdrc_imx.h1
-rw-r--r--drivers/usb/chipidea/usbmisc_imx.c18
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h
index 88b8da79d518..cb95c84d0322 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.h
+++ b/drivers/usb/chipidea/ci_hdrc_imx.h
@@ -37,5 +37,6 @@ int imx_usbmisc_hsic_set_connect(struct imx_usbmisc_data *data);
int imx_usbmisc_charger_detection(struct imx_usbmisc_data *data, bool connect);
int imx_usbmisc_suspend(struct imx_usbmisc_data *data, bool wakeup);
int imx_usbmisc_resume(struct imx_usbmisc_data *data, bool wakeup);
+int imx_usbmisc_pullup(struct imx_usbmisc_data *data, bool on);
#endif /* __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H */
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index 118b9a68496b..9db67d6d0ec4 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -170,6 +170,9 @@ struct usbmisc_ops {
int (*charger_detection)(struct imx_usbmisc_data *data);
/* It's called when system resume from usb power lost */
int (*power_lost_check)(struct imx_usbmisc_data *data);
+ /* It's called when device controller changed pullup status */
+ void (*pullup)(struct imx_usbmisc_data *data, bool on);
+ /* It's called during suspend/resume to save power */
void (*vbus_comparator_on)(struct imx_usbmisc_data *data, bool on);
};
@@ -1225,6 +1228,21 @@ int imx_usbmisc_charger_detection(struct imx_usbmisc_data *data, bool connect)
}
EXPORT_SYMBOL_GPL(imx_usbmisc_charger_detection);
+int imx_usbmisc_pullup(struct imx_usbmisc_data *data, bool on)
+{
+ struct imx_usbmisc *usbmisc;
+
+ if (!data)
+ return 0;
+
+ usbmisc = dev_get_drvdata(data->dev);
+ if (usbmisc->ops->pullup)
+ usbmisc->ops->pullup(data, on);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(imx_usbmisc_pullup);
+
int imx_usbmisc_suspend(struct imx_usbmisc_data *data, bool wakeup)
{
struct imx_usbmisc *usbmisc;