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thermal: of: Match trip property helper types

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The thermal-zone binding defines "temperature" as a signed int32
value and "hysteresis" as an unsigned int32 value. Using helpers with
matching types avoids dt_property_check mismatches and preserves the
signed interpretation needed for trips below zero.

Read "temperature" with the signed helper and keep "hysteresis" on the
unsigned helper using separate typed temporaries before storing them in
the trip structure.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://patch.msgid.link/20260831194235.1182138-1-robh@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rob Herring (Arm) 2026-08-31 14:42:35 -05:00 committed by Rafael J. Wysocki
parent 5ad0af4f43
commit d98d8b50a8
1 changed files with 6 additions and 5 deletions
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11
drivers/thermal/thermal_of.c
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@ -63,22 +63,23 @@ static int thermal_of_get_trip_type(struct device_node *np,
static int thermal_of_populate_trip(struct device_node *np,
struct thermal_trip *trip)
{
int prop;
u32 hysteresis;
s32 temperature;
int ret;
ret = of_property_read_u32(np, "temperature", &prop);
ret = of_property_read_s32(np, "temperature", &temperature);
if (ret < 0) {
pr_err("missing temperature property\n");
return ret;
}
trip->temperature = prop;
trip->temperature = temperature;
ret = of_property_read_u32(np, "hysteresis", &prop);
ret = of_property_read_u32(np, "hysteresis", &hysteresis);
if (ret < 0) {
pr_err("missing hysteresis property\n");
return ret;
}
trip->hysteresis = prop;
trip->hysteresis = hysteresis;
ret = thermal_of_get_trip_type(np, &trip->type);
if (ret < 0) {