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usb: musb-new: Add compatibles for ti,musb-am33xx

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The upstream devicetree am33xx.dtsi does not have a "ti,am33xx-usb"
compatible, it uses "ti,sysc-omap4" for the same node. The
implementation of ti-musb uses a wrapper driver that binds to
ti,am33xx-usb and creates new devices ti-musb-host and
ti-musb-peripheral depending on the dr_mode property.

To avoid this wrapper driver with the upstream devicetree, add
compatibles for "ti,musb-am33xx" to both ti-musb-host and
ti-musb-peripheral. Add a bind function that checks for the correct
dr_mode value and rejects binding if it is not the correct driver.

Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp@baylibre.com>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>
This commit is contained in:
Markus Schneider-Pargmann (TI.com) 2026-02-09 10:24:38 +01:00 committed by Tom Rini
parent 9bf19639a7
commit 4cf2275ee7
1 changed files with 29 additions and 0 deletions
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29
drivers/usb/musb-new/ti-musb.c
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@ -183,6 +183,21 @@ static int ti_musb_host_remove(struct udevice *dev)
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
static const struct udevice_id ti_musb_host_periph_ids[] = {
{ .compatible = "ti,musb-am33xx" },
{ }
};
static int ti_musb_host_bind(struct udevice *dev)
{
enum usb_dr_mode dr_mode = usb_get_dr_mode(dev_ofnode(dev));
if (dr_mode != USB_DR_MODE_HOST && dr_mode != USB_DR_MODE_OTG)
return -ENODEV;
return 0;
}
static int ti_musb_host_of_to_plat(struct udevice *dev)
{
struct ti_musb_plat *plat = dev_get_plat(dev);
@ -206,6 +221,8 @@ U_BOOT_DRIVER(ti_musb_host) = {
.name = "ti-musb-host",
.id = UCLASS_USB,
#if CONFIG_IS_ENABLED(OF_CONTROL)
.of_match = ti_musb_host_periph_ids,
.bind = ti_musb_host_bind,
.of_to_plat = ti_musb_host_of_to_plat,
#endif
.probe = ti_musb_host_probe,
@ -221,6 +238,16 @@ struct ti_musb_peripheral {
};
#if CONFIG_IS_ENABLED(OF_CONTROL)
static int ti_musb_peripheral_bind(struct udevice *dev)
{
enum usb_dr_mode dr_mode = usb_get_dr_mode(dev_ofnode(dev));
if (dr_mode != USB_DR_MODE_PERIPHERAL)
return -ENODEV;
return 0;
}
static int ti_musb_peripheral_of_to_plat(struct udevice *dev)
{
struct ti_musb_plat *plat = dev_get_plat(dev);
@ -283,6 +310,8 @@ U_BOOT_DRIVER(ti_musb_peripheral) = {
.name = "ti-musb-peripheral",
.id = UCLASS_USB_GADGET_GENERIC,
#if CONFIG_IS_ENABLED(OF_CONTROL)
.of_match = ti_musb_host_periph_ids,
.bind = ti_musb_peripheral_bind,
.of_to_plat = ti_musb_peripheral_of_to_plat,
#endif
.ops = &ti_musb_gadget_ops,