diff options
| author | Markus Schneider-Pargmann (TI.com) <[email protected]> | 2026-02-09 10:24:38 +0100 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2026-03-06 08:15:43 -0600 |
| commit | 4cf2275ee741d318c46c2ccef4c5db905f186d79 (patch) | |
| tree | dcc419fee318ce2c0b846247e8207299635c2a6f | |
| parent | 9bf19639a76a35cf63a0b7293dc4cf9d9294f526 (diff) | |
usb: musb-new: Add compatibles for ti,musb-am33xx
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 <[email protected]>
Signed-off-by: Markus Schneider-Pargmann (TI.com) <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
| -rw-r--r-- | drivers/usb/musb-new/ti-musb.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/usb/musb-new/ti-musb.c b/drivers/usb/musb-new/ti-musb.c index 75dc2dc1874..cc6c3b94a65 100644 --- a/drivers/usb/musb-new/ti-musb.c +++ b/drivers/usb/musb-new/ti-musb.c @@ -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, |