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

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


             reply	other threads:[~2023-05-16 18:49 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-16 18:25 Mario Limonciello [this message]
2023-05-16 18:25 ` [PATCH 1/2] power: supply: Use the scope of power supplies to tell if power is system supplied Mario Limonciello
2023-05-16 20:41   ` Sebastian Reichel
2023-05-16 20:44     ` Limonciello, Mario
2023-05-16 21:54       ` Sebastian Reichel
2023-05-16 18:25 ` [PATCH 2/2] usb: typec: ucsi: Don't create power supplies for dGPUs Mario Limonciello
2023-05-17 17:14   ` Andy Shevchenko
2023-05-17 18:58     ` Greg KH
2023-05-17 19:14       ` Andy Shevchenko
2023-05-18 15:31         ` Limonciello, Mario
2023-05-17  1:22 ` [PATCH 0/2] Adjust logic for power_supply_is_system_supplied() Quan, Evan
2023-05-17 17:15   ` andriy.shevchenko

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