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qcacld-3.0: Enable Runtime PM after first interface is up

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Enable Runtime PM after first interface is up and disable it when
the last interface goes down. The current logic is enabling runtime
pm too early, causing crashes.

Change-Id: I486409bd8375de327b724fc16ab32b4907c1c093
CRs-Fixed: 1072520
This commit is contained in:
Komal Seelam 2016-09-28 18:30:44 +05:30 • committed by qcabuildsw
commit f2136bb225
2 changed files with 40 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

4
core/hdd/src/wlan_hdd_driver_ops.c
View file

@ -266,8 +266,6 @@ int hdd_hif_open(struct device *dev, void *bdev, const hif_bus_id *bid,
}
}
hif_enable_power_management(hif_ctx, cds_is_packet_log_enabled());
return 0;
err_hif_close:
@ -287,8 +285,6 @@ void hdd_hif_close(void *hif_ctx)
if (hif_ctx == NULL)
return;
hif_disable_power_management(hif_ctx);
hif_disable(hif_ctx, HIF_DISABLE_TYPE_REMOVE);
hdd_napi_destroy(true);

40
core/hdd/src/wlan_hdd_main.c
View file

@ -1706,6 +1706,44 @@ err_start_adapter:
return -EINVAL;
}
/**
* hdd_enable_power_management() - API to Enable Power Management
*
* API invokes Bus Interface Layer power management functionality
*
* Return: None
*/
static void hdd_enable_power_management(void)
{
void *hif_ctx = cds_get_context(QDF_MODULE_ID_HIF);
if (!hif_ctx) {
hdd_err("Bus Interface Context is Invalid");
return;
}
hif_enable_power_management(hif_ctx, cds_is_packet_log_enabled());
}
/**
* hdd_disable_power_management() - API to disable Power Management
*
* API disable Bus Interface Layer Power management functionality
*
* Return: None
*/
static void hdd_disable_power_management(void)
{
void *hif_ctx = cds_get_context(QDF_MODULE_ID_HIF);
if (!hif_ctx) {
hdd_err("Bus Interface Context is Invalid");
return;
}
hif_disable_power_management(hif_ctx);
}
/**
* hdd_wlan_start_modules() - Single driver state machine for starting modules
* @hdd_ctx: HDD context
@ -1835,6 +1873,7 @@ int hdd_wlan_start_modules(hdd_context_t *hdd_ctx, hdd_adapter_t *adapter,
hdd_err("Failed to Enable cds modules");
goto close;
}
hdd_enable_power_management();
hdd_info("Driver Modules Successfully Enabled");
hdd_ctx->driver_status = DRIVER_MODULES_ENABLED;
break;
@ -7601,6 +7640,7 @@ int hdd_wlan_stop_modules(hdd_context_t *hdd_ctx, bool shutdown)
hdd_info("Modules already closed");
goto done;
case DRIVER_MODULES_ENABLED:
hdd_disable_power_management();
if (hdd_deconfigure_cds(hdd_ctx)) {
hdd_alert("Failed to de-configure CDS");
QDF_ASSERT(0);