linux-kernel - [PATCH 5/7] usb: typec: tipd: Provide POWER_SUPPLY_PROP

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Date:   Thu, 17 Mar 2022 16:45:16 +0100
From:   Sebastian Krzyszkowiak <sebastian.krzyszkowiak@...i.sm>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        linux-usb@...r.kernel.org
Cc:     Sebastian Krzyszkowiak <sebastian.krzyszkowiak@...i.sm>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sven Peter <sven@...npeter.dev>,
        Guido Günther <agx@...xcpu.org>,
        Angus Ainslie <angus@...ea.ca>,
        Hector Martin <marcan@...can.st>,
        "Bryan O'Donoghue" <bryan.odonoghue@...aro.org>,
        linux-kernel@...r.kernel.org, kernel@...i.sm
Subject: [PATCH 5/7] usb: typec: tipd: Provide POWER_SUPPLY_PROP_PRESENT

This allows userspace and downstream supplies to know whether
something is plugged in.

Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@...i.sm>
---
 drivers/usb/typec/tipd/core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index f3e8f1183f5b..874528b02a99 100644
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -108,6 +108,7 @@ struct tps6598x {
 static enum power_supply_property tps6598x_psy_props[] = {
 	POWER_SUPPLY_PROP_USB_TYPE,
 	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_PRESENT,
 	POWER_SUPPLY_PROP_CURRENT_MAX,
 	POWER_SUPPLY_PROP_VOLTAGE_MAX,
 };
@@ -756,6 +757,9 @@ static int tps6598x_psy_get_prop(struct power_supply *psy,
 	case POWER_SUPPLY_PROP_ONLINE:
 		ret = tps6598x_psy_get_online(tps, val);
 		break;
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = !!tps->partner;
+		break;
 	case POWER_SUPPLY_PROP_CURRENT_MAX:
 		ret = tps6598x_psy_get_max_current(tps, val);
 		break;
-- 
2.35.1