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    Subject[PATCH v2 0/9] X-Powers Power Supply Improvements
    Date
    This series adds some improvements to the axp20x* power supply drivers
    to better support suspend/resume and use on mobile devices.

    The first two patches fix bugs I found while testing the ONLINE control
    added in later patches.

    Patches 3 and 7 allow userspace to take the power supplies offline.
    Patches 4 and 8 allow userspace to control the wakeup behavior.

    Patch 9 avoids polling USB VBUS presence when possible. While working on
    the RSB driver, I was seeing ~50 transfers per second, while idle and
    tracked it down to this VBUS polling (20 reads/second). The polling
    often caused the CPU to clock up and back down, which triggered the
    remaining transfers (changes to the CPU voltage).

    Unfortunately, I don't see a way to avoid the polling when running on
    battery (where it matters most), other than to move the polling back to
    the USB PHY driver.

    Changes since v1:
    - Add patches 1-2
    - Shift value properly in calls to regmap_update_bits (3, 7)
    - Use #ifdef instead of #if to avoid -Wundef warnings (4, 8)
    - Poll once after an IRQ, instead of setting power->online in the IRQ (9)
    - Poll once on resume, in case the state changed during suspend (9)

    Samuel Holland (9):
    mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatile
    power: supply: axp20x_ac_power: Fix reporting online status
    power: supply: axp20x_ac_power: Allow offlining
    power: supply: axp20x_ac_power: Add wakeup control
    power: supply: axp20x_usb_power: Remove unused device_node
    power: supply: axp20x_usb_power: Use a match structure
    power: supply: axp20x_usb_power: Allow offlining
    power: supply: axp20x_usb_power: Add wakeup control
    power: supply: axp20x_usb_power: Only poll while offline

    drivers/mfd/axp20x.c | 2 +-
    drivers/power/supply/axp20x_ac_power.c | 131 +++++++++++---
    drivers/power/supply/axp20x_usb_power.c | 220 ++++++++++++++++++------
    3 files changed, 276 insertions(+), 77 deletions(-)

    --
    2.23.0

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