linux-kernel - [PATCH 3/6] power: supply: rt9467-charger: Remove "usb

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Message-ID: <20240831142039.28830-4-hdegoede@redhat.com>
Date: Sat, 31 Aug 2024 16:20:36 +0200
From: Hans de Goede <hdegoede@...hat.com>
To: Sebastian Reichel <sre@...nel.org>,
	Thomas Weißschuh <linux@...ssschuh.net>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>
Cc: Hans de Goede <hdegoede@...hat.com>,
	Enric Balletbo Serra <enric.balletbo@...labora.com>,
	Andrey Smirnov <andrew.smirnov@...il.com>,
	linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org,
	linux-phy@...ts.infradead.org
Subject: [PATCH 3/6] power: supply: rt9467-charger: Remove "usb_type" property write support

The "usb_type" property must be read-only for charger power-supply devices,
see: Documentation/ABI/testing/sysfs-class-power.

But the rt9467 driver allows writing 0/1 to it to disable/enable charging.
Other charger drivers use the "status" property for this and the rt9467
code also allows writing 0/1 to its "status" property and this does
the exact same thing as writing 0/1 to its "usb_type" property.

Drop write support for the "usb_type" property making it readonly to match
the ABI documentation. If userspace wants to disable/enable charging it
can use the "status" property for this.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
---
 drivers/power/supply/rt9467-charger.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/power/supply/rt9467-charger.c b/drivers/power/supply/rt9467-charger.c
index fdfdc83ab045..f935bd761ac1 100644
--- a/drivers/power/supply/rt9467-charger.c
+++ b/drivers/power/supply/rt9467-charger.c
@@ -745,8 +745,6 @@ static int rt9467_psy_set_property(struct power_supply *psy,
 						    RT9467_RANGE_IPREC, val->intval);
 	case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
 		return rt9467_psy_set_ieoc(data, val->intval);
-	case POWER_SUPPLY_PROP_USB_TYPE:
-		return regmap_field_write(data->rm_field[F_USBCHGEN], val->intval);
 	default:
 		return -EINVAL;
 	}
@@ -764,7 +762,6 @@ static int rt9467_chg_prop_is_writeable(struct power_supply *psy,
 	case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT:
 	case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
 	case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
-	case POWER_SUPPLY_PROP_USB_TYPE:
 		return 1;
 	default:
 		return 0;
-- 
2.46.0