[PATCH 3/3] phy: sun4i-usb: Use power efficient workqueue for debounce and poll

[Frank Lee]

From: Yangtao Li <fr...@allwinnertech.com>

The debounce and poll time is generally quite long and the work not
performance critical so allow the scheduler to run the work anywhere
rather than in the normal per-CPU workqueue.

Signed-off-by: Yangtao Li <fr...@allwinnertech.com>
---
 drivers/phy/allwinner/phy-sun4i-usb.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c 
b/drivers/phy/allwinner/phy-sun4i-usb.c
index 651d5e2a25ce..4787ad13b255 100644
--- a/drivers/phy/allwinner/phy-sun4i-usb.c
+++ b/drivers/phy/allwinner/phy-sun4i-usb.c
@@ -326,7 +326,7 @@ static int sun4i_usb_phy_init(struct phy *_phy)
                /* Force ISCR and cable state updates */
                data->id_det = -1;
                data->vbus_det = -1;
-               queue_delayed_work(system_wq, &data->detect, 0);
+               queue_delayed_work(system_power_efficient_wq, &data->detect, 0);
        }
 
        return 0;
@@ -444,7 +444,7 @@ static int sun4i_usb_phy_power_on(struct phy *_phy)
 
        /* We must report Vbus high within OTG_TIME_A_WAIT_VRISE msec. */
        if (phy->index == 0 && sun4i_usb_phy0_poll(data))
-               mod_delayed_work(system_wq, &data->detect, DEBOUNCE_TIME);
+               mod_delayed_work(system_power_efficient_wq, &data->detect, 
DEBOUNCE_TIME);
 
        return 0;
 }
@@ -465,7 +465,7 @@ static int sun4i_usb_phy_power_off(struct phy *_phy)
         * Vbus gpio to not trigger an edge irq on Vbus off, so force a rescan.
         */
        if (phy->index == 0 && !sun4i_usb_phy0_poll(data))
-               mod_delayed_work(system_wq, &data->detect, POLL_TIME);
+               mod_delayed_work(system_power_efficient_wq, &data->detect, 
POLL_TIME);
 
        return 0;
 }
@@ -504,7 +504,7 @@ static int sun4i_usb_phy_set_mode(struct phy *_phy,
 
        data->id_det = -1; /* Force reprocessing of id */
        data->force_session_end = true;
-       queue_delayed_work(system_wq, &data->detect, 0);
+       queue_delayed_work(system_power_efficient_wq, &data->detect, 0);
 
        return 0;
 }
@@ -616,7 +616,7 @@ static void sun4i_usb_phy0_id_vbus_det_scan(struct 
work_struct *work)
                extcon_set_state_sync(data->extcon, EXTCON_USB, vbus_det);
 
        if (sun4i_usb_phy0_poll(data))
-               queue_delayed_work(system_wq, &data->detect, POLL_TIME);
+               queue_delayed_work(system_power_efficient_wq, &data->detect, 
POLL_TIME);
 }
 
 static irqreturn_t sun4i_usb_phy0_id_vbus_det_irq(int irq, void *dev_id)
@@ -624,7 +624,7 @@ static irqreturn_t sun4i_usb_phy0_id_vbus_det_irq(int irq, 
void *dev_id)
        struct sun4i_usb_phy_data *data = dev_id;
 
        /* vbus or id changed, let the pins settle and then scan them */
-       mod_delayed_work(system_wq, &data->detect, DEBOUNCE_TIME);
+       mod_delayed_work(system_power_efficient_wq, &data->detect, 
DEBOUNCE_TIME);
 
        return IRQ_HANDLED;
 }
@@ -638,7 +638,7 @@ static int sun4i_usb_phy0_vbus_notify(struct notifier_block 
*nb,
 
        /* Properties on the vbus_power_supply changed, scan vbus_det */
        if (val == PSY_EVENT_PROP_CHANGED && psy == data->vbus_power_supply)
-               mod_delayed_work(system_wq, &data->detect, DEBOUNCE_TIME);
+               mod_delayed_work(system_power_efficient_wq, &data->detect, 
DEBOUNCE_TIME);
 
        return NOTIFY_OK;
 }
-- 
2.28.0