On 19/12/2023 17:04, Caleb Connolly wrote:
Add support for a vbus-supply regulator specified in devicetree. This provides generic support to avoid hardcoded GPIO configuration in board init code.Signed-off-by: Caleb Connolly <caleb.conno...@linaro.org> --- This patch has no dependencies Cc: Marek Vasut <ma...@denx.de> --- drivers/usb/dwc3/dwc3-generic.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c index 744fde806948..e66e7961c70f 100644 --- a/drivers/usb/dwc3/dwc3-generic.c +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -21,6 +21,7 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include <malloc.h> +#include <power/regulator.h> #include <usb.h> #include "core.h" #include "gadget.h" @@ -47,6 +48,7 @@ struct dwc3_generic_priv { struct dwc3_generic_host_priv { struct xhci_ctrl xhci_ctrl; struct dwc3_generic_priv gen_priv; + struct udevice *vbus_dev; };static int dwc3_generic_probe(struct udevice *dev,@@ -240,6 +242,13 @@ static int dwc3_generic_host_probe(struct udevice *dev) if (rc) return rc;+ rc = device_get_supply_regulator(dev, "vbus-supply", &priv->vbus_dev);+ if (rc) + debug("%s: No vbus regulator found: %d\n", dev->name, rc); + + if (priv->vbus_dev) + regulator_set_enable(priv->vbus_dev, true); + hccr = (struct xhci_hccr *)priv->gen_priv.base; hcor = (struct xhci_hcor *)(priv->gen_priv.base + HC_LENGTH(xhci_readl(&(hccr)->cr_capbase))); @@ -256,6 +265,9 @@ static int dwc3_generic_host_remove(struct udevice *dev) if (rc) return rc;+ if (priv->vbus_dev)+ regulator_set_enable(priv->vbus_dev, false); + return dwc3_generic_remove(dev, &priv->gen_priv); }
Reviewed-by: Neil Armstrong <neil.armstr...@linaro.org>
