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fix(usb): Fixed missing GPIO drive capability on ESP32-P4

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All USB PHYs that share their IOs with GPIOs must set
the GPIO's drive capability to maximum.
This commit is contained in:
Tomas Rezucha
2025-01-27 08:07:46 +01:00
parent 47577b83c5
commit 55f5f29517
5 changed files with 44 additions and 16 deletions
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components/usb/usb_phy.c
+3 -4
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@@ -373,12 +373,11 @@ esp_err_t usb_new_phy(const usb_phy_config_t *config, usb_phy_handle_t *handle_r
}
// For FSLS PHY that shares pads with GPIO peripheral, we must set drive capability to 3 (40mA)
#if !CONFIG_IDF_TARGET_ESP32P4 // TODO: We must set drive capability for FSLS PHY for P4 too, to pass Full Speed eye diagram test
if (phy_target == USB_PHY_TARGET_INT) {
gpio_set_drive_capability(USBPHY_DM_NUM, GPIO_DRIVE_CAP_3);
gpio_set_drive_capability(USBPHY_DP_NUM, GPIO_DRIVE_CAP_3);
assert(usb_dwc_info.controllers[otg11_index].internal_phy_io);
gpio_set_drive_capability(usb_dwc_info.controllers[otg11_index].internal_phy_io->dm, GPIO_DRIVE_CAP_3);
gpio_set_drive_capability(usb_dwc_info.controllers[otg11_index].internal_phy_io->dp, GPIO_DRIVE_CAP_3);
}
#endif
*handle_ret = (usb_phy_handle_t) phy_context;
if (phy_target == USB_PHY_TARGET_EXT) {