usb: phy: ab8500-usb: drop link status delayed work

ab8500_usb_delayed_work was implemented as a workaroud for the internal
only and now unsupported v1.0 version of AB850.  This patch removes the
delayed work and just leave a link status update call at probe time.

Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 2 insertions, 28 deletions

diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index 90a3278d2820..a1c103fc26ec 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -124,9 +124,7 @@ struct ab8500_usb {
         struct device *dev;
         struct ab8500 *ab8500;
         unsigned vbus_draw;
-        struct delayed_work dwork;
         struct work_struct phy_dis_work;
-        unsigned long link_status_wait;
         enum ab8500_usb_mode mode;
         struct regulator *v_ape;
         struct regulator *v_musb;
@@ -556,14 +554,6 @@ static irqreturn_t ab8500_usb_link_status_irq(int irq, void *data)
         return IRQ_HANDLED;
 }
 
-static void ab8500_usb_delayed_work(struct work_struct *work)
-{
-        struct ab8500_usb *ab = container_of(work, struct ab8500_usb,
-                                                dwork.work);
-
-        abx500_usb_link_status_update(ab);
-}
-
 static void ab8500_usb_phy_disable_work(struct work_struct *work)
 {
         struct ab8500_usb *ab = container_of(work, struct ab8500_usb,
@@ -635,12 +625,6 @@ static int ab8500_usb_set_peripheral(struct usb_otg *otg,
         } else {
                 otg->gadget = gadget;
                 otg->phy->state = OTG_STATE_B_IDLE;
-
-                /* Phy will not be enabled if cable is already
-                 * plugged-in. Schedule to enable phy.
-                 * Use same delay to avoid any race condition.
-                 */
-                schedule_delayed_work(&ab->dwork, ab->link_status_wait);
         }
 
         return 0;
@@ -665,11 +649,6 @@ static int ab8500_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
                 schedule_work(&ab->phy_dis_work);
         } else {
                 otg->host = host;
-                /* Phy will not be enabled if cable is already
-                 * plugged-in. Schedule to enable phy.
-                 * Use same delay to avoid any race condition.
-                 */
-                schedule_delayed_work(&ab->dwork, ab->link_status_wait);
         }
 
         return 0;
@@ -792,11 +771,6 @@ static int ab8500_usb_probe(struct platform_device *pdev)
 
         ATOMIC_INIT_NOTIFIER_HEAD(&ab->phy.notifier);
 
-        /* v1: Wait for link status to become stable.
-         * all: Updates form set_host and set_peripheral as they are atomic.
-         */
-        INIT_DELAYED_WORK(&ab->dwork, ab8500_usb_delayed_work);
-
         /* all: Disable phy when called from set_host and set_peripheral */
         INIT_WORK(&ab->phy_dis_work, ab8500_usb_phy_disable_work);
 
@@ -893,6 +867,8 @@ static int ab8500_usb_probe(struct platform_device *pdev)
         /* Needed to enable ID detection. */
         ab8500_usb_wd_workaround(ab);
 
+        abx500_usb_link_status_update(ab);
+
         dev_info(&pdev->dev, "revision 0x%2x driver initialized\n", rev);
 
         return 0;
@@ -902,8 +878,6 @@ static int ab8500_usb_remove(struct platform_device *pdev)
 {
         struct ab8500_usb *ab = platform_get_drvdata(pdev);
 
-        cancel_delayed_work_sync(&ab->dwork);
-
         cancel_work_sync(&ab->phy_dis_work);
 
         usb_remove_phy(&ab->phy);