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qcacmn: Create new HIF function to handle PM no idle operations

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Some areas in other components are directly calling the kernel api
functions to perform runtime PM no idle operations. Create a new HIF
function to handle runtime PM no idle operations.

Change-Id: I8328bc74ccc8e8acd35d7d73ec4cc21094b8f5b2
CRs-Fixed: 2607721
This commit is contained in:
Alan Chen
2020-01-21 13:33:16 -08:00
committed by nshrivas
parent 4f6336687c
commit 898760633d
2 changed files with 45 additions and 2 deletions
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3
hif/inc/hif.h
View File

@@ -875,6 +875,7 @@ int hif_pm_runtime_request_resume(struct hif_opaque_softc *hif_ctx);
int hif_pm_runtime_get(struct hif_opaque_softc *hif_ctx);
void hif_pm_runtime_get_noresume(struct hif_opaque_softc *hif_ctx);
int hif_pm_runtime_put(struct hif_opaque_softc *hif_ctx);
int hif_pm_runtime_put_noidle(struct hif_opaque_softc *hif_ctx);
void hif_pm_runtime_mark_last_busy(struct hif_opaque_softc *hif_ctx);
int hif_runtime_lock_init(qdf_runtime_lock_t *lock, const char *name);
void hif_runtime_lock_deinit(struct hif_opaque_softc *hif_ctx,
@@ -912,6 +913,8 @@ static inline int hif_pm_runtime_get(struct hif_opaque_softc *hif_ctx)
{ return 0; }
static inline int hif_pm_runtime_put(struct hif_opaque_softc *hif_ctx)
{ return 0; }
static inline int hif_pm_runtime_put_noidle(struct hif_opaque_softc *hif_ctx)
{ return 0; }
static inline void
hif_pm_runtime_mark_last_busy(struct hif_opaque_softc *hif_ctx) {};
static inline int hif_runtime_lock_init(qdf_runtime_lock_t *lock,

44
hif/src/pcie/if_pci.c
View File

@@ -4119,9 +4119,9 @@ int hif_pm_runtime_get(struct hif_opaque_softc *hif_ctx)
}
/**
* hif_pm_runtime_put() - do a put opperation on the device
* hif_pm_runtime_put() - do a put operation on the device
*
* A put opperation will allow a runtime suspend after a corresponding
* A put operation will allow a runtime suspend after a corresponding
* get was done. This api should be used when sending data.
*
* This api will return a failure if runtime pm is stopped
@@ -4170,6 +4170,46 @@ int hif_pm_runtime_put(struct hif_opaque_softc *hif_ctx)
return 0;
}
/**
* hif_pm_runtime_put_noidle() - do a put operation with no idle
*
* This API will do a runtime put no idle operation
*
* @hif_ctx: pointer of HIF context
*
* Return: 0 for success otherwise an error code
*/
int hif_pm_runtime_put_noidle(struct hif_opaque_softc *hif_ctx)
{
struct hif_pci_softc *sc = HIF_GET_PCI_SOFTC(hif_ctx);
int usage_count, pm_state;
char *err = NULL;
if (!sc)
return -EINVAL;
if (!pm_runtime_enabled(sc->dev))
return 0;
usage_count = atomic_read(&sc->dev->power.usage_count);
if (usage_count == 1) {
pm_state = qdf_atomic_read(&sc->pm_state);
if (pm_state == HIF_PM_RUNTIME_STATE_NONE)
err = "Ignore unexpected Put as runtime PM is disabled";
} else if (usage_count == 0) {
err = "Put without a Get Operation";
}
if (err) {
hif_pci_runtime_pm_warn(sc, err);
return -EINVAL;
}
sc->pm_stats.runtime_put++;
pm_runtime_put_noidle(sc->dev);
return 0;
}
/**
* __hif_pm_runtime_prevent_suspend() - prevent runtime suspend for a protocol