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power: supply: max17042: support standard shunt-resistor-micro-ohms DT property

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shunt-resistor-micro-ohms is a standard property used to describe the
value of a shunt resistor required when measuring currents. Standard
properties should be used instead of vendor-specific ones of similar
intention when possible.

Try to read it from DT, and fall back to the vendor-specific property
maxim,rsns-microohm if unsuccessful for compatibility with existing
DTs.

Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20260302-max77759-fg-v3-8-3c5f01dbda23@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
André Draszik
2026-03-02 13:32:07 +00:00
committed by Sebastian Reichel
parent 0c5a6dc85d
commit 2288d5eaca
1 changed files with 5 additions and 1 deletions
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6
drivers/power/supply/max17042_battery.c
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@@ -925,8 +925,12 @@ max17042_get_of_pdata(struct max17042_chip *chip)
/*
* Require current sense resistor value to be specified for
* current-sense functionality to be enabled at all.
* maxim,rsns-microohm is the property name used by older DTs and kept
* for compatibility.
*/
if (of_property_read_u32(np, "maxim,rsns-microohm", &prop) == 0) {
if ((of_property_read_u32(np, "shunt-resistor-micro-ohms",
&prop) == 0) ||
(of_property_read_u32(np, "maxim,rsns-microohm", &prop) == 0)) {
pdata->r_sns = prop;
pdata->enable_current_sense = true;
}