bq27000: directory/files exists even when hardware is not available

Hi!

On droid4 (4.17-rc1), /sys/class/power_supply/bq27000-battery exists even when hardware is not present (as on Droid 4).

Any ideas?
Pavel

(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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Somebody must have registered bq device into power_supply subsystem. Maybe DT note is present?

Pali Roh?r
pali.rohar at gmail.com

No, I don't think so:

pavel at duo:/data/l/linux-n900$ grep bq27 arch/arm/boot/dts/* Binary file arch/arm/boot/dts/omap3-n900.dtb matches
arch/arm/boot/dts/omap3-n900.dts: bq27200: bq27200 at 55 {
arch/arm/boot/dts/omap3-n900.dts: compatible =
"ti,bq27200";
arch/arm/boot/dts/omap3-n900.dts~: bq27200: bq27200 at 55 {
arch/arm/boot/dts/omap3-n900.dts~: compatible =
"ti,bq27200";
arch/arm/boot/dts/omap3-n900.dts.orig: bq27200: bq27200 at 55 {
arch/arm/boot/dts/omap3-n900.dts.orig: compatible =
"ti,bq27200";
Binary file arch/arm/boot/dts/omap3-n950.dtb matches
arch/arm/boot/dts/omap3-n950-n9.dtsi: bq27521: bq27521 at 55 {
arch/arm/boot/dts/omap3-n950-n9.dtsi: compatible =
"ti,bq27521";
arch/arm/boot/dts/omap3-n950-n9.dtsi~: bq27521: bq27521 at 55 {
arch/arm/boot/dts/omap3-n950-n9.dtsi~: compatible =
"ti,bq27521";
arch/arm/boot/dts/omap3-n950-n9.dtsi.orig: bq27521: bq27521 at 55 {
arch/arm/boot/dts/omap3-n950-n9.dtsi.orig: compatible =
"ti,bq27521";
Binary file arch/arm/boot/dts/omap3-n9.dtb matches
arch/arm/boot/dts/omap3-pandora-common.dtsi: bq27500 at 55 {
arch/arm/boot/dts/omap3-pandora-common.dtsi: compatible
= "ti,bq27500"; arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts:
bq27541 at 55 { arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts:
compatible = "ti,bq27541";
arch/arm/boot/dts/rk3288-veyron-minnie.dts: battery: bq27500 at 55 {
arch/arm/boot/dts/rk3288-veyron-minnie.dts: compatible =
"ti,bq27500";
pavel at duo:/data/l/linux-n900$

Is it possible that one wire subsystem registers bq27000 even without device tree node?
Pavel

(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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