Messages in this thread Patch in this message | | | From | Amelie Delaunay <> | Subject | [PATCH v5 3/3] usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs | Date | Tue, 28 Jul 2020 09:46:02 +0200 |
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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.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> --- Changes in v5: - Use device_property_read_bool instead of of_read_property_bool --- drivers/usb/dwc2/params.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index a3611cdd1dea..50df72f32b4c 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -185,7 +185,7 @@ static void dwc2_set_stm32mp15_hsotg_params(struct dwc2_hsotg *hsotg) struct dwc2_core_params *p = &hsotg->params; p->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE; - p->activate_stm_id_vb_detection = true; + p->activate_stm_id_vb_detection = !device_property_read_bool(hsotg->dev, "usb-role-switch"); p->host_rx_fifo_size = 440; p->host_nperio_tx_fifo_size = 256; p->host_perio_tx_fifo_size = 256; -- 2.17.1
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