usb: misc: onboard_usb_dev: Add support for requesting VBUS for Type-A ports

Add a regulator-only entry matching OF-described USB Type-A connectors.

This allows platforms to explicitly model VBUS supply regulators for these
ports instead of calling them PHY supplies or making the respective
regulators always-on in their device trees.

Type-A ports won't typically need a dedicated driver, as there is nothing
to configure apart from the power supply, so there is no controller driver
to traverse the OF graph and request the VBUS regulator, unlike for Type-C
ports. Thus make it an onboard USB device, which it kind of really is.

Signed-off-by: Alexey Charkov <alchark@flipper.net>
Link: https://patch.msgid.link/20260217-typea-vbus-v1-1-657b4e55a4c2@flipper.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/misc/onboard_usb_dev.h b/drivers/usb/misc/onboard_usb_dev.h
index 1a1e86e60e04258d66e7c111a4cfdc53fed486e6..35d15b0346649840496187c8e1910bc6b92b8a20 100644 (file)
--- a/drivers/usb/misc/onboard_usb_dev.h
+++ b/drivers/usb/misc/onboard_usb_dev.h
@@ -108,6 +108,11 @@ static const struct onboard_dev_pdata genesys_gl852g_data = {
        .is_hub = true,
 };
 
+static const struct onboard_dev_pdata usb_a_conn_data = {
+       .num_supplies = 1,
+       .supply_names = { "vbus" },
+};
+
 static const struct onboard_dev_pdata vialab_vl817_data = {
        .reset_us = 10,
        .num_supplies = 1,
@@ -130,6 +135,7 @@ static const struct onboard_dev_pdata xmos_xvf3500_data = {
 };
 
 static const struct of_device_id onboard_dev_match[] = {
+       { .compatible = "usb-a-connector", .data = &usb_a_conn_data, },
        { .compatible = "usb424,2412", .data = &microchip_usb424_data, },
        { .compatible = "usb424,2514", .data = &microchip_usb2514_data, },
        { .compatible = "usb424,2517", .data = &microchip_usb424_data, },