phy: sun4i-usb: replace use of system_wq with system_percpu_wq

Currently if a user enqueues a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.

This lack of consistency cannot be addressed without refactoring the API.

This patch continues the effort to refactor worqueue APIs, which has begun
with the change introducing new workqueues and a new alloc_workqueue flag:

commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")

Replace system_wq with system_percpu_wq, keeping the same behavior.
The old wq (system_wq) will be kept for a few release cycles.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20251105152023.259813-1-marco.crivellari@suse.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c
index 59d38d88efb085fedb93d6592e3c344346fbea70..e2fbf8ccf99e17f2d1da97bb837d47ab8537f33c 100644 (file)
--- a/drivers/phy/allwinner/phy-sun4i-usb.c
+++ b/drivers/phy/allwinner/phy-sun4i-usb.c
@@ -359,7 +359,7 @@ 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_percpu_wq, &data->detect, 0);
        }
 
        return 0;
@@ -482,7 +482,7 @@ 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_percpu_wq, &data->detect, DEBOUNCE_TIME);
 
        return 0;
 }
@@ -503,7 +503,7 @@ 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_percpu_wq, &data->detect, POLL_TIME);
 
        return 0;
 }
@@ -542,7 +542,7 @@ 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_percpu_wq, &data->detect, 0);
 
        return 0;
 }
@@ -654,7 +654,7 @@ 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_percpu_wq, &data->detect, POLL_TIME);
 }
 
 static irqreturn_t sun4i_usb_phy0_id_vbus_det_irq(int irq, void *dev_id)
@@ -662,7 +662,7 @@ 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_percpu_wq, &data->detect, DEBOUNCE_TIME);
 
        return IRQ_HANDLED;
 }
@@ -676,7 +676,7 @@ 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_percpu_wq, &data->detect, DEBOUNCE_TIME);
 
        return NOTIFY_OK;
 }