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fix(esp_hw_support): fix P4 v3.0 USB leakage on PU_CNNT lightsleep

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wuzhenghui
2025-11-04 16:03:29 +08:00
parent df78f0a5f0
commit 1956ea5ac2
2 changed files with 27 additions and 1 deletions
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components/esp_hw_support/sleep_usb.c
+5 -1
View File
@@ -16,7 +16,7 @@
#if SOC_USB_OTG_SUPPORTED
#if SOC_PM_SUPPORT_CNNT_PD
static bool s_usb_utmi_bus_clock_state, s_usb_utmi_stoppclk_state;
static bool s_usb_utmi_bus_clock_state, s_usb_utmi_stoppclk_state, s_usb_dwc_bvalid_override;
void sleep_usb_otg_phy_backup_and_disable(void)
{
@@ -24,6 +24,9 @@ void sleep_usb_otg_phy_backup_and_disable(void)
if (!s_usb_utmi_bus_clock_state) {
_usb_utmi_ll_enable_bus_clock(true);
}
// Forcing BVALID low to ignore the hardware-detected VBUS BVALID signal to suppress USB leakage.
s_usb_dwc_bvalid_override = usb_dwc_ll_get_bvalid_override(&USB_DWC_HS);
usb_dwc_ll_enable_bvalid_override(&USB_DWC_HS, true);
s_usb_utmi_stoppclk_state = usb_dwc_ll_get_stoppclk_st(&USB_DWC_HS);
usb_dwc_ll_set_stoppclk(&USB_DWC_HS, true);
}
@@ -31,6 +34,7 @@ void sleep_usb_otg_phy_backup_and_disable(void)
void sleep_usb_otg_phy_restore(void)
{
_usb_utmi_ll_enable_bus_clock(true);
usb_dwc_ll_enable_bvalid_override(&USB_DWC_HS, s_usb_dwc_bvalid_override);
usb_dwc_ll_set_stoppclk(&USB_DWC_HS, s_usb_utmi_stoppclk_state);
if (!s_usb_utmi_bus_clock_state) {
_usb_utmi_ll_enable_bus_clock(false);
components/hal/esp32p4/include/hal/usb_dwc_ll.h
+22
View File
@@ -1011,6 +1011,28 @@ static inline void usb_dwc_ll_qtd_get_status(usb_dwc_ll_dma_qtd_t *qtd, int *rem
qtd->buffer_status_val = 0;
}
/**
* @brief Get the current BVALID override configuration.
*
* @param[out] Get the current BVALID override configuration.
*/
FORCE_INLINE_ATTR bool usb_dwc_ll_get_bvalid_override(usb_dwc_dev_t *hw)
{
return hw->gotgctl_reg.bvalidoven;
}
/**
* @brief Enable BVALID override in USB OTG controller.
*
* When enabled, the controller ignores the hardware-detected VBUS BVALID signal
* and uses the software-defined override value instead. This is typically used
* to reduce USB leakage current during sleep by forcing BVALID low.
*/
FORCE_INLINE_ATTR void usb_dwc_ll_enable_bvalid_override(usb_dwc_dev_t *hw, bool override)
{
hw->gotgctl_reg.bvalidoven = override;
}
// ---------------------------- Power and Clock Gating Register --------------------------------
FORCE_INLINE_ATTR void usb_dwc_ll_set_stoppclk(usb_dwc_dev_t *hw, bool stop)
{