qcacmn: add Runtime PM HIF changes for ipci interface

Add Runtime PM related HIF changes to enable it for
ipci interface.

Change-Id: I4af91c0e38130281cad3b39e555ec98716d027b8
CRs-Fixed: 2720823

hif/inc/hif.h

@@ -989,6 +989,7 @@ bool hif_pm_runtime_is_suspended(struct hif_opaque_softc *hif_ctx);
 int hif_pm_runtime_get_monitor_wake_intr(struct hif_opaque_softc *hif_ctx);
 void hif_pm_runtime_set_monitor_wake_intr(struct hif_opaque_softc *hif_ctx,
 					  int val);
+void hif_pm_runtime_check_and_request_resume(struct hif_opaque_softc *hif_ctx);
 void hif_pm_runtime_mark_dp_rx_busy(struct hif_opaque_softc *hif_ctx);
 int hif_pm_runtime_is_dp_rx_busy(struct hif_opaque_softc *hif_ctx);
 qdf_time_t hif_pm_runtime_get_dp_rx_busy_mark(struct hif_opaque_softc *hif_ctx);
@@ -1052,6 +1053,9 @@ static inline void
 hif_pm_runtime_set_monitor_wake_intr(struct hif_opaque_softc *hif_ctx, int val)
 { return; }
 static inline void
+hif_pm_runtime_check_and_request_resume(struct hif_opaque_softc *hif_ctx)
+{ return; }
+static inline void
 hif_pm_runtime_mark_dp_rx_busy(struct hif_opaque_softc *hif_ctx) {};
 static inline int
 hif_pm_runtime_is_dp_rx_busy(struct hif_opaque_softc *hif_ctx)

hif/src/dispatcher/ipci_api.h

@@ -143,6 +143,30 @@ QDF_STATUS hif_ipci_enable_bus(
  */
 void hif_ipci_disable_bus(struct hif_softc *scn);
 
+#ifdef FEATURE_RUNTIME_PM
+/**
+ * hif_ipci_get_rpm_ctx() - Map corresponding hif_runtime_pm_ctx
+ * @scn: hif context
+ *
+ * This function will map and return the corresponding
+ * hif_runtime_pm_ctx based on ipcie interface.
+ *
+ * Return: struct hif_runtime_pm_ctx pointer
+ */
+struct hif_runtime_pm_ctx *hif_ipci_get_rpm_ctx(struct hif_softc *hif_sc);
+
+/**
+ * hif_ipci_get_dev() - Map corresponding device structure
+ * @scn: hif context
+ *
+ * This function will map and return the corresponding
+ * device structure based on ipcie interface.
+ *
+ * Return: struct device pointer
+ */
+struct device *hif_ipci_get_dev(struct hif_softc *hif_sc);
+#endif
+
 /**
  * hif_ipci_bus_configure() - configure the pcie bus
  * @hif_sc: pointer to the hif context.

hif/src/dispatcher/multibus_ipci.c

@@ -46,6 +46,10 @@ QDF_STATUS hif_initialize_ipci_ops(struct hif_softc *hif_sc)
 	bus_ops->hif_nointrs = &hif_ipci_nointrs;
 	bus_ops->hif_enable_bus = &hif_ipci_enable_bus;
 	bus_ops->hif_disable_bus = &hif_ipci_disable_bus;
+#ifdef FEATURE_RUNTIME_PM
+	bus_ops->hif_bus_get_rpm_ctx = &hif_ipci_get_rpm_ctx;
+	bus_ops->hif_bus_get_dev = &hif_ipci_get_dev;
+#endif
 	bus_ops->hif_bus_configure = &hif_ipci_bus_configure;
 	bus_ops->hif_get_config_item = &hif_dummy_get_config_item;
 	bus_ops->hif_set_mailbox_swap = &hif_dummy_set_mailbox_swap;

hif/src/hif_runtime_pm.c

@@ -1704,6 +1704,24 @@ void hif_pm_runtime_set_monitor_wake_intr(struct hif_opaque_softc *hif_ctx,
 	qdf_atomic_set(&rpm_ctx->monitor_wake_intr, val);
 }
 
+/**
+ * hif_pm_runtime_check_and_request_resume() - check if the device is runtime
+ *					       suspended and request resume.
+ * @hif_ctx: HIF context
+ *
+ * This function is to check if the device is runtime suspended and
+ * request for runtime resume.
+ *
+ * Return: void
+ */
+void hif_pm_runtime_check_and_request_resume(struct hif_opaque_softc *hif_ctx)
+{
+	if (hif_pm_runtime_get_monitor_wake_intr(hif_ctx)) {
+		hif_pm_runtime_set_monitor_wake_intr(hif_ctx, 0);
+		hif_pm_runtime_request_resume(hif_ctx);
+	}
+}
+
 /**
  * hif_pm_runtime_mark_dp_rx_busy() - Set last busy mark my data path
  * @hif_ctx: HIF context

hif/src/ipcie/if_ipci.c

@@ -46,13 +46,31 @@
 
 #include "ipci_api.h"
 
+#ifdef FEATURE_RUNTIME_PM
+inline struct hif_runtime_pm_ctx *hif_ipci_get_rpm_ctx(struct hif_softc *scn)
+{
+	struct hif_ipci_softc *sc = HIF_GET_IPCI_SOFTC(scn);
+
+	return &sc->rpm_ctx;
+}
+
+inline struct device *hif_ipci_get_dev(struct hif_softc *scn)
+{
+	struct hif_ipci_softc *sc = HIF_GET_IPCI_SOFTC(scn);
+
+	return sc->dev;
+}
+#endif
+
 void hif_ipci_enable_power_management(struct hif_softc *hif_sc,
 				      bool is_packet_log_enabled)
 {
+	hif_pm_runtime_start(hif_sc);
 }
 
 void hif_ipci_disable_power_management(struct hif_softc *hif_ctx)
 {
+	hif_pm_runtime_stop(hif_ctx);
 }
 
 void hif_ipci_display_stats(struct hif_softc *hif_ctx)
@@ -76,6 +94,7 @@ QDF_STATUS hif_ipci_open(struct hif_softc *hif_ctx, enum qdf_bus_type bus_type)
 	struct hif_ipci_softc *sc = HIF_GET_IPCI_SOFTC(hif_ctx);
 
 	hif_ctx->bus_type = bus_type;
+	hif_pm_runtime_open(hif_ctx);
 
 	qdf_spinlock_create(&sc->irq_lock);
 
@@ -157,6 +176,7 @@ timer_free:
 
 void hif_ipci_close(struct hif_softc *hif_sc)
 {
+	hif_pm_runtime_close(hif_sc);
 	hif_ce_close(hif_sc);
 }
 
@@ -274,6 +294,7 @@ void hif_ipci_prevent_linkdown(struct hif_softc *scn, bool flag)
 	int errno;
 
 	HIF_INFO("wlan: %s pcie power collapse", flag ? "disable" : "enable");
+	hif_runtime_prevent_linkdown(scn, flag);
 
 	errno = pld_wlan_pm_control(scn->qdf_dev->dev, flag);
 	if (errno)
@@ -284,6 +305,7 @@ void hif_ipci_prevent_linkdown(struct hif_softc *scn, bool flag)
 void hif_ipci_prevent_linkdown(struct hif_softc *scn, bool flag)
 {
 	HIF_INFO("wlan: %s pcie power collapse", (flag ? "disable" : "enable"));
+	hif_runtime_prevent_linkdown(scn, flag);
 }
 #endif
 
@@ -350,6 +372,8 @@ static irqreturn_t hif_ce_interrupt_handler(int irq, void *context)
 {
 	struct ce_tasklet_entry *tasklet_entry = context;
 
+	hif_pm_runtime_check_and_request_resume(
+			GET_HIF_OPAQUE_HDL(tasklet_entry->hif_ce_state));
 	return ce_dispatch_interrupt(tasklet_entry->ce_id, tasklet_entry);
 }
 

hif/src/ipcie/if_ipci.h

@@ -26,6 +26,7 @@
 #include "hif.h"
 #include "cepci.h"
 #include "ce_main.h"
+#include "hif_runtime_pm.h"
 
 #ifdef FORCE_WAKE
 /**
@@ -76,6 +77,9 @@ struct hif_ipci_softc {
 	uint32_t register_window;
 	qdf_spinlock_t register_access_lock;
 	qdf_spinlock_t irq_lock;
+#ifdef FEATURE_RUNTIME_PM
+	struct hif_runtime_pm_ctx rpm_ctx;
+#endif
 
 	void (*hif_ipci_get_soc_info)(struct hif_ipci_softc *sc,
 				      struct device *dev);