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power: supply: axp288_charger: Simplify extcon cable handling

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Simplify extcon cable handling using the new
devm_extcon_register_notifier_all function to listen to all cables
in one go.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
This commit is contained in:
Hans de Goede 2017-12-26 13:59:08 +01:00 committed by Sebastian Reichel
parent 81d56dd3d5
commit 8c0a0a2959
1 changed files with 10 additions and 41 deletions
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51
drivers/power/supply/axp288_charger.c
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@ -103,9 +103,6 @@
#define USB_HOST_EXTCON_HID "INT3496"
#define USB_HOST_EXTCON_NAME "INT3496:00"
static const unsigned int cable_ids[] =
{ EXTCON_CHG_USB_SDP, EXTCON_CHG_USB_CDP, EXTCON_CHG_USB_DCP };
enum {
VBUS_OV_IRQ = 0,
CHARGE_DONE_IRQ,
@ -137,7 +134,7 @@ struct axp288_chrg_info {
/* SDP/CDP/DCP USB charging cable notifications */
struct {
struct extcon_dev *edev;
struct notifier_block nb[ARRAY_SIZE(cable_ids)];
struct notifier_block nb;
struct work_struct work;
} cable;
@ -595,34 +592,11 @@ static void axp288_charger_extcon_evt_worker(struct work_struct *work)
power_supply_changed(info->psy_usb);
}
/*
* We need 3 copies of this, because there is no way to find out for which
* cable id we are being called from the passed in arguments; and we must
* have a separate nb for each extcon_register_notifier call.
*/
static int axp288_charger_handle_cable0_evt(struct notifier_block *nb,
unsigned long event, void *param)
static int axp288_charger_handle_cable_evt(struct notifier_block *nb,
unsigned long event, void *param)
{
struct axp288_chrg_info *info =
container_of(nb, struct axp288_chrg_info, cable.nb[0]);
schedule_work(&info->cable.work);
return NOTIFY_OK;
}
static int axp288_charger_handle_cable1_evt(struct notifier_block *nb,
unsigned long event, void *param)
{
struct axp288_chrg_info *info =
container_of(nb, struct axp288_chrg_info, cable.nb[1]);
schedule_work(&info->cable.work);
return NOTIFY_OK;
}
static int axp288_charger_handle_cable2_evt(struct notifier_block *nb,
unsigned long event, void *param)
{
struct axp288_chrg_info *info =
container_of(nb, struct axp288_chrg_info, cable.nb[2]);
container_of(nb, struct axp288_chrg_info, cable.nb);
schedule_work(&info->cable.work);
return NOTIFY_OK;
}
@ -800,17 +774,12 @@ static int axp288_charger_probe(struct platform_device *pdev)
/* Register for extcon notification */
INIT_WORK(&info->cable.work, axp288_charger_extcon_evt_worker);
info->cable.nb[0].notifier_call = axp288_charger_handle_cable0_evt;
info->cable.nb[1].notifier_call = axp288_charger_handle_cable1_evt;
info->cable.nb[2].notifier_call = axp288_charger_handle_cable2_evt;
for (i = 0; i < ARRAY_SIZE(cable_ids); i++) {
ret = devm_extcon_register_notifier(dev, info->cable.edev,
cable_ids[i], &info->cable.nb[i]);
if (ret) {
dev_err(dev, "failed to register extcon notifier for %u: %d\n",
cable_ids[i], ret);
return ret;
}
info->cable.nb.notifier_call = axp288_charger_handle_cable_evt;
ret = devm_extcon_register_notifier_all(dev, info->cable.edev,
&info->cable.nb);
if (ret) {
dev_err(dev, "failed to register cable extcon notifier\n");
return ret;
}
schedule_work(&info->cable.work);