Revert "extcon: axp288: Redo charger type detection a couple of seconds after probe()"

Redoing the charger type detection to give the usb-role-switch code time
to properly set the role-switch is no good for mainline, since the
usb-role-switch code is not yet in mainline (my bad, sorry).

Also once we've that code there are better ways to fix this which are
not prone to racing as doing a retry after 2 seconds is.

This reverts commit 50082c17bb1455acacd376ae30dff92f2e1addbd.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index c8f7b64..3ec4c71 100644 (file)
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -1,7 +1,6 @@
 /*
  * extcon-axp288.c - X-Power AXP288 PMIC extcon cable detection driver
  *
- * Copyright (C) 2016-2017 Hans de Goede <hdegoede@redhat.com>
  * Copyright (C) 2015 Intel Corporation
  * Author: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
  *
@@ -98,11 +97,9 @@ struct axp288_extcon_info {
        struct device *dev;
        struct regmap *regmap;
        struct regmap_irq_chip_data *regmap_irqc;
-       struct delayed_work det_work;
        int irq[EXTCON_IRQ_END];
        struct extcon_dev *edev;
        unsigned int previous_cable;
-       bool first_detect_done;
 };
 
 /* Power up/down reason string array */
@@ -140,25 +137,6 @@ static void axp288_extcon_log_rsi(struct axp288_extcon_info *info)
        regmap_write(info->regmap, AXP288_PS_BOOT_REASON_REG, clear_mask);
 }
 
-static void axp288_chrg_detect_complete(struct axp288_extcon_info *info)
-{
-       /*
-        * We depend on other drivers to do things like mux the data lines,
-        * enable/disable vbus based on the id-pin, etc. Sometimes the BIOS has
-        * not set these things up correctly resulting in the initial charger
-        * cable type detection giving a wrong result and we end up not charging
-        * or charging at only 0.5A.
-        *
-        * So we schedule a second cable type detection after 2 seconds to
-        * give the other drivers time to load and do their thing.
-        */
-       if (!info->first_detect_done) {
-               queue_delayed_work(system_wq, &info->det_work,
-                                  msecs_to_jiffies(2000));
-               info->first_detect_done = true;
-       }
-}
-
 static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
 {
        int ret, stat, cfg, pwr_stat;
@@ -223,8 +201,6 @@ no_vbus:
                info->previous_cable = cable;
        }
 
-       axp288_chrg_detect_complete(info);
-
        return 0;
 
 dev_det_ret:
@@ -246,11 +222,8 @@ static irqreturn_t axp288_extcon_isr(int irq, void *data)
        return IRQ_HANDLED;
 }
 
-static void axp288_extcon_det_work(struct work_struct *work)
+static void axp288_extcon_enable(struct axp288_extcon_info *info)
 {
-       struct axp288_extcon_info *info =
-               container_of(work, struct axp288_extcon_info, det_work.work);
-
        regmap_update_bits(info->regmap, AXP288_BC_GLOBAL_REG,
                                                BC_GLOBAL_RUN, 0);
        /* Enable the charger detection logic */
@@ -272,7 +245,6 @@ static int axp288_extcon_probe(struct platform_device *pdev)
        info->regmap = axp20x->regmap;
        info->regmap_irqc = axp20x->regmap_irqc;
        info->previous_cable = EXTCON_NONE;
-       INIT_DELAYED_WORK(&info->det_work, axp288_extcon_det_work);
 
        platform_set_drvdata(pdev, info);
 
@@ -318,7 +290,7 @@ static int axp288_extcon_probe(struct platform_device *pdev)
        }
 
        /* Start charger cable type detection */
-       queue_delayed_work(system_wq, &info->det_work, 0);
+       axp288_extcon_enable(info);
 
        return 0;
 }