RE: [PATCH 0/2] Adjust logic for power_supply_is_system_supplied()

Quan, Evan
2023-05-17T01:22:36Z

[AMD Official Use Only - General]

Series is Reviewed-and-tested-by: Evan Quan <evan.quan@amd.com>

> -----Original Message-----
> From: Limonciello, Mario <Mario.Limonciello@amd.com>
> Sent: Wednesday, May 17, 2023 2:26 AM
> 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; Quan, Evan
> <Evan.Quan@amd.com>; Lazar, Lijo <Lijo.Lazar@amd.com>; Goswami, Sanket
> <Sanket.Goswami@amd.com>; Limonciello, Mario
> <Mario.Limonciello@amd.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