diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-03-29 17:42:18 +0300 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2019-04-21 11:26:52 +0300 |
| commit | 2d76160f049c42087011cfa0e6e878aa2ed6b406 (patch) | |
| tree | 804fdf3ca8bb10bbfb20eaf7c1b982c2afd0e310 | |
| parent | 0fdd0bc621f060fcf60fd4ba48a2a32f338ffeac (diff) | |
| download | u-boot-2d76160f049c42087011cfa0e6e878aa2ed6b406.tar.xz | |
usb: dwc2: Add function for session B check
Add a new function to check the session B validity, to be use to check
cable connection.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
| -rw-r--r-- | drivers/usb/gadget/dwc2_udc_otg.c | 9 | ||||
| -rw-r--r-- | include/usb/dwc2_udc.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c index 146f11e710..b1efad115e 100644 --- a/drivers/usb/gadget/dwc2_udc_otg.c +++ b/drivers/usb/gadget/dwc2_udc_otg.c @@ -1151,4 +1151,13 @@ U_BOOT_DRIVER(dwc2_udc_otg) = { .platdata_auto_alloc_size = sizeof(struct dwc2_plat_otg_data), .priv_auto_alloc_size = sizeof(struct dwc2_priv_data), }; + +int dwc2_udc_B_session_valid(struct udevice *dev) +{ + struct dwc2_plat_otg_data *platdata = dev_get_platdata(dev); + struct dwc2_usbotg_reg *usbotg_reg = + (struct dwc2_usbotg_reg *)platdata->regs_otg; + + return readl(&usbotg_reg->gotgctl) & B_SESSION_VALID; +} #endif /* CONFIG_IS_ENABLED(DM_USB_GADGET) */ diff --git a/include/usb/dwc2_udc.h b/include/usb/dwc2_udc.h index 3cf20eab92..8a426b631e 100644 --- a/include/usb/dwc2_udc.h +++ b/include/usb/dwc2_udc.h @@ -27,4 +27,6 @@ struct dwc2_plat_otg_data { int dwc2_udc_probe(struct dwc2_plat_otg_data *pdata); +int dwc2_udc_B_session_valid(struct udevice *dev); + #endif /* __DWC2_USB_GADGET */ |