linux-kernel - [PATCH 0/2] Adjust logic for power_supply_is_system

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Message-ID: <20230516182541.5836-1-mario.limonciello@amd.com>
Date:   Tue, 16 May 2023 13:25:39 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     <heikki.krogerus@...ux.intel.com>, <rafael@...nel.org>,
        <ajayg@...dia.com>, <andriy.shevchenko@...ux.intel.com>
CC:     <linux-i2c@...r.kernel.org>, <linux-pm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        <Evan.Quan@....com>, <Lijo.Lazar@....com>,
        <Sanket.Goswami@....com>,
        "Mario Limonciello" <mario.limonciello@....com>
Subject: [PATCH 0/2] Adjust logic for power_supply_is_system_supplied()

Some systems don't provide any ACPI power supplies, but drivers use
the function power_supply_is_system_supplied() to make policy decisions.

This logic works fine until a new device is added to the system that
provides a UCSI power supply. This power supply doesn't power the system
but the logic assumes it does.

This series adjusts the logic so that these power supplies are not
considered when making these policy decisions.

Mario Limonciello (2):
  power: supply: Use the scope of power supplies to tell if power is
    system supplied
  usb: typec: ucsi: Don't create power supplies for dGPUs

 drivers/i2c/busses/i2c-designware-pcidrv.c | 13 ++++++++++++-
 drivers/i2c/busses/i2c-nvidia-gpu.c        |  3 +++
 drivers/power/supply/power_supply_core.c   |  8 ++++++--
 drivers/usb/typec/ucsi/psy.c               | 14 ++++++++++++++
 4 files changed, 35 insertions(+), 3 deletions(-)

-- 
2.34.1