From: Amelie Delaunay Date: Tue, 16 Jun 2020 14:07:16 +0000 (+0200) Subject: usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=916f8b627288039d9e771a9b2ab1b3c79b303039;p=linux.git usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs If usb-role-switch is present in the device tree, it means that ID and Vbus signals are not connected to the OTG controller but to an external component (GPIOs, Type-C controller). In this configuration, usb role switch is used to force valid sessions on STM32MP15 SoCs. Acked-by: Minas Harutyunyan Signed-off-by: Amelie Delaunay Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index 8f9d061c4d5fa..bd792c9cdef98 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -183,9 +183,11 @@ static void dwc2_set_stm32mp15_fsotg_params(struct dwc2_hsotg *hsotg) static void dwc2_set_stm32mp15_hsotg_params(struct dwc2_hsotg *hsotg) { struct dwc2_core_params *p = &hsotg->params; + struct device_node *np = hsotg->dev->of_node; p->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE; - p->activate_stm_id_vb_detection = true; + p->activate_stm_id_vb_detection = + !of_property_read_bool(np, "usb-role-switch"); p->host_rx_fifo_size = 440; p->host_nperio_tx_fifo_size = 256; p->host_perio_tx_fifo_size = 256;