Messages in this thread | | | From | Frans Klaver <> | Subject | [RFC PATCH 0/2] explicitly instantiate battery from device tree | Date | Wed, 24 Sep 2014 15:11:16 +0200 |
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Hi there,
Here's some patches that make it possible to instantiate an sbs battery without it being present yet.
i2c devices are more or less presumed to be persistent. This is a fair assumption, except for the case of batteries. It is perfectly sensible for a device to boot up using wall power, but no battery attached. While later attaching a battery and dropping the wall power. Detecting the device from userspace is tedious requires you to scan for device presence yourself, or you can ask the kernel to probe again, cluttering your logs with failed probes.
I'd like to hear what you think about this.
Thanks, Frans
Frans Klaver (2): sbs-battery: add forced instantiation from device tree sbs-battery: dts: document always-present property
.../devicetree/bindings/power_supply/sbs_sbs-battery.txt | 2 ++ drivers/power/sbs-battery.c | 11 +++++++++-- include/linux/power/sbs-battery.h | 3 +++ 4 files changed, 15 insertions(+), 2 deletions(-)
-- 2.1.0
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