diff options
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/pm.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/pm.c | 104 |
1 files changed, 75 insertions, 29 deletions
diff --git a/drivers/net/wireless/ath/wil6210/pm.c b/drivers/net/wireless/ath/wil6210/pm.c index 8f5d1b447aaa..056b180fad7f 100644 --- a/drivers/net/wireless/ath/wil6210/pm.c +++ b/drivers/net/wireless/ath/wil6210/pm.c @@ -16,15 +16,30 @@ #include "wil6210.h" #include <linux/jiffies.h> +#include <linux/pm_runtime.h> + +#define WIL6210_AUTOSUSPEND_DELAY_MS (1000) int wil_can_suspend(struct wil6210_priv *wil, bool is_runtime) { int rc = 0; struct wireless_dev *wdev = wil->wdev; struct net_device *ndev = wil_to_ndev(wil); + bool wmi_only = test_bit(WMI_FW_CAPABILITY_WMI_ONLY, + wil->fw_capabilities); wil_dbg_pm(wil, "can_suspend: %s\n", is_runtime ? "runtime" : "system"); + if (wmi_only || debug_fw) { + wil_dbg_pm(wil, "Deny any suspend - %s mode\n", + wmi_only ? "wmi_only" : "debug_fw"); + rc = -EBUSY; + goto out; + } + if (is_runtime && !wil->platform_ops.suspend) { + rc = -EBUSY; + goto out; + } if (!(ndev->flags & IFF_UP)) { /* can always sleep when down */ wil_dbg_pm(wil, "Interface is down\n"); @@ -44,6 +59,10 @@ int wil_can_suspend(struct wil6210_priv *wil, bool is_runtime) /* interface is running */ switch (wdev->iftype) { case NL80211_IFTYPE_MONITOR: + wil_dbg_pm(wil, "Sniffer\n"); + rc = -EBUSY; + goto out; + /* for STA-like interface, don't runtime suspend */ case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: if (test_bit(wil_status_fwconnecting, wil->status)) { @@ -51,6 +70,12 @@ int wil_can_suspend(struct wil6210_priv *wil, bool is_runtime) rc = -EBUSY; goto out; } + /* Runtime pm not supported in case the interface is up */ + if (is_runtime) { + wil_dbg_pm(wil, "STA-like interface\n"); + rc = -EBUSY; + goto out; + } break; /* AP-like interface - can't suspend */ default: @@ -158,7 +183,7 @@ static int wil_suspend_keep_radio_on(struct wil6210_priv *wil) break; wil_err(wil, "TO waiting for idle RX, suspend failed\n"); - wil->suspend_stats.failed_suspends++; + wil->suspend_stats.r_on.failed_suspends++; goto resume_after_fail; } wil_dbg_ratelimited(wil, "rx vring is not empty -> NAPI\n"); @@ -174,7 +199,7 @@ static int wil_suspend_keep_radio_on(struct wil6210_priv *wil) */ if (!wil_is_wmi_idle(wil)) { wil_err(wil, "suspend failed due to pending WMI events\n"); - wil->suspend_stats.failed_suspends++; + wil->suspend_stats.r_on.failed_suspends++; goto resume_after_fail; } @@ -188,7 +213,7 @@ static int wil_suspend_keep_radio_on(struct wil6210_priv *wil) if (rc) { wil_err(wil, "platform device failed to suspend (%d)\n", rc); - wil->suspend_stats.failed_suspends++; + wil->suspend_stats.r_on.failed_suspends++; wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); wil_unmask_irq(wil); goto resume_after_fail; @@ -235,6 +260,7 @@ static int wil_suspend_radio_off(struct wil6210_priv *wil) rc = wil_down(wil); if (rc) { wil_err(wil, "wil_down : %d\n", rc); + wil->suspend_stats.r_off.failed_suspends++; goto out; } } @@ -247,6 +273,7 @@ static int wil_suspend_radio_off(struct wil6210_priv *wil) rc = wil->platform_ops.suspend(wil->platform_handle, false); if (rc) { wil_enable_irq(wil); + wil->suspend_stats.r_off.failed_suspends++; goto out; } } @@ -279,12 +306,9 @@ static int wil_resume_radio_off(struct wil6210_priv *wil) return rc; } -int wil_suspend(struct wil6210_priv *wil, bool is_runtime) +int wil_suspend(struct wil6210_priv *wil, bool is_runtime, bool keep_radio_on) { int rc = 0; - struct net_device *ndev = wil_to_ndev(wil); - bool keep_radio_on = ndev->flags & IFF_UP && - wil->keep_radio_on_during_sleep; wil_dbg_pm(wil, "suspend: %s\n", is_runtime ? "runtime" : "system"); @@ -301,19 +325,12 @@ int wil_suspend(struct wil6210_priv *wil, bool is_runtime) wil_dbg_pm(wil, "suspend: %s => %d\n", is_runtime ? "runtime" : "system", rc); - if (!rc) - wil->suspend_stats.suspend_start_time = ktime_get(); - return rc; } -int wil_resume(struct wil6210_priv *wil, bool is_runtime) +int wil_resume(struct wil6210_priv *wil, bool is_runtime, bool keep_radio_on) { int rc = 0; - struct net_device *ndev = wil_to_ndev(wil); - bool keep_radio_on = ndev->flags & IFF_UP && - wil->keep_radio_on_during_sleep; - unsigned long long suspend_time_usec = 0; wil_dbg_pm(wil, "resume: %s\n", is_runtime ? "runtime" : "system"); @@ -331,20 +348,49 @@ int wil_resume(struct wil6210_priv *wil, bool is_runtime) else rc = wil_resume_radio_off(wil); - if (rc) - goto out; - - suspend_time_usec = - ktime_to_us(ktime_sub(ktime_get(), - wil->suspend_stats.suspend_start_time)); - wil->suspend_stats.total_suspend_time += suspend_time_usec; - if (suspend_time_usec < wil->suspend_stats.min_suspend_time) - wil->suspend_stats.min_suspend_time = suspend_time_usec; - if (suspend_time_usec > wil->suspend_stats.max_suspend_time) - wil->suspend_stats.max_suspend_time = suspend_time_usec; - out: - wil_dbg_pm(wil, "resume: %s => %d, suspend time %lld usec\n", - is_runtime ? "runtime" : "system", rc, suspend_time_usec); + wil_dbg_pm(wil, "resume: %s => %d\n", is_runtime ? "runtime" : "system", + rc); return rc; } + +void wil_pm_runtime_allow(struct wil6210_priv *wil) +{ + struct device *dev = wil_to_dev(wil); + + pm_runtime_put_noidle(dev); + pm_runtime_set_autosuspend_delay(dev, WIL6210_AUTOSUSPEND_DELAY_MS); + pm_runtime_use_autosuspend(dev); + pm_runtime_allow(dev); +} + +void wil_pm_runtime_forbid(struct wil6210_priv *wil) +{ + struct device *dev = wil_to_dev(wil); + + pm_runtime_forbid(dev); + pm_runtime_get_noresume(dev); +} + +int wil_pm_runtime_get(struct wil6210_priv *wil) +{ + int rc; + struct device *dev = wil_to_dev(wil); + + rc = pm_runtime_get_sync(dev); + if (rc < 0) { + wil_err(wil, "pm_runtime_get_sync() failed, rc = %d\n", rc); + pm_runtime_put_noidle(dev); + return rc; + } + + return 0; +} + +void wil_pm_runtime_put(struct wil6210_priv *wil) +{ + struct device *dev = wil_to_dev(wil); + + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); +} |