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usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs

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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.

Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Amelie Delaunay 2020-09-09 11:35:11 +02:00 committed by Felipe Balbi
parent 17f934024e
commit d58ba48028
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/dwc2/params.c
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@ -185,7 +185,7 @@ static void dwc2_set_stm32mp15_hsotg_params(struct dwc2_hsotg *hsotg)
struct dwc2_core_params *p = &hsotg->params; struct dwc2_core_params *p = &hsotg->params;
p->otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE; 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_rx_fifo_size = 440;
p->host_nperio_tx_fifo_size = 256; p->host_nperio_tx_fifo_size = 256;
p->host_perio_tx_fifo_size = 256; p->host_perio_tx_fifo_size = 256;