Hi All, I found another laptop which uses an AXP288 PMIC, but does not use the builtin fuel-gauge. Here is a reworked version of Carlo Caione's patches to ignore the PMIC-with-native-driver blacklist in the ACPI AC / Battery code. Note this version applies on top of my recent patch series: [PATCH 1/4] ACPI / AC: Remove initializer for unused ident dmi_system_id [PATCH 2/4] ACPI / battery: Remove initializer for unused ident dmi_system_id [PATCH 3/4] ACPI / battery: Add handling for devices which wrongly report discharging state [PATCH 4/4] ACPI / battery: Ignore AC state in handle_discharging on systems where it is broken This v3 has the following changes compared to Carlo's last version (v2): -Rebased on top of 4.17-rc1 + the above patches -Redo the patch split putting all changes to 1 file in a single commit -Add a second dmi entry for the Lenovo Ideapad Miix 320 I realize this aint pretty, but there really is no other way: a) We need a native fuel-gauge driver because some devices use the AXP288 PMIC's fuel-gauge functionality and don't define any PNP0C0A at all. b) Some devices do define a PNP0C0A so we get duplicate /sys/class/power_supply entries, so we need to filter out one or the other. c) Most devices which use the AXP288 fuel-gauge function and define a PNP0C0A ACPI device rely on custom opregions related to a virtual INT33FE device for which we've no documentation, so we've chosen to filter out the PNP0C0A power-supply functionality on devices with an AXP288 and always use the existing (and necessary, see a.) fuel-gauge driver rather then spending time on figuring out the custom opregions. d) But now we see devices which use the AXP288 PMIC, which presence the AC / battery driver check for to filter themselves out, but which don't use the fuel-gauge function of the AXP288, so we do actually need the PNP0C0A device there. Which leads to these patches using DMI quirks to handle case d. :| Regards, Hans p.s. Carlo, I've a different approach for not registering the non-functional AXP288 fuel-gauge power-supply class device, I will Cc you on those patches too, please let me know if those also work on the ECS EF20EA laptop. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
