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qcacmn: HIF APIs to prevent/allow low power states

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Add HIF APIs to prevent or allow link to go into low power states. The
current implementation uses PLD APIs to make the needed configuration.

Change-Id: I22efb4bcf902f9aff674ed1872f4f23bef508aae
CRs-Fixed: 2602029
This commit is contained in:
Mohit Khanna
2020-02-21 12:29:37 -08:00
committed by nshrivas
parent b4429e8278
commit ace98f847f
2 changed files with 42 additions and 0 deletions
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31
hif/inc/hif.h
View File

@@ -1202,6 +1202,37 @@ int hif_force_wake_release(struct hif_opaque_softc *handle)
} }
#endif /* FORCE_WAKE */ #endif /* FORCE_WAKE */
#ifdef FEATURE_HAL_DELAYED_REG_WRITE
/**
* hif_prevent_link_low_power_states() - Prevent from going to low power states
* @hif - HIF opaque context
*
* Return: 0 on success. Error code on failure.
*/
int hif_prevent_link_low_power_states(struct hif_opaque_softc *hif);
/**
* hif_allow_link_low_power_states() - Allow link to go to low power states
* @hif - HIF opaque context
*
* Return: None
*/
void hif_allow_link_low_power_states(struct hif_opaque_softc *hif);
#else
static inline
int hif_prevent_link_low_power_states(struct hif_opaque_softc *hif)
{
return 0;
}
static inline
void hif_allow_link_low_power_states(struct hif_opaque_softc *hif)
{
}
#endif
void *hif_get_dev_ba(struct hif_opaque_softc *hif_handle); void *hif_get_dev_ba(struct hif_opaque_softc *hif_handle);
/** /**

11
hif/src/pcie/if_pci.c
View File

@@ -4844,3 +4844,14 @@ void hif_print_pci_stats(struct hif_pci_softc *pci_handle)
} }
#endif /* FORCE_WAKE */ #endif /* FORCE_WAKE */
#ifdef FEATURE_HAL_DELAYED_REG_WRITE
int hif_prevent_link_low_power_states(struct hif_opaque_softc *hif)
{
return pld_prevent_l1(HIF_GET_SOFTC(hif)->qdf_dev->dev);
}
void hif_allow_link_low_power_states(struct hif_opaque_softc *hif)
{
pld_allow_l1(HIF_GET_SOFTC(hif)->qdf_dev->dev);
}
#endif