[PATCH 6.18 195/309] thermal: intel: int340x: soc_slider: Set offset only for balanced mode

Greg Kroah-Hartman
2026-03-31T17:05:06Z

From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

commit 7dfe9846016b15816e287a4650be1ff1b48c5ab4 upstream.

The slider offset can be set via debugfs for balanced mode. The offset
should be only applicable in balanced mode. For other modes, it should
be 0 when writing to MMIO offset,

Fixes: 8306bcaba06d ("thermal: intel: int340x: Add module parameter to change slider offset")
Tested-by: Erin Park <erin.park@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: 6.18+ <stable@vger.kernel.org> # 6.18+
[ rjw: Subject and changelog tweaks ]
Link: https://patch.msgid.link/20260324172346.3317145-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
.../intel/int340x_thermal/processor_thermal_soc_slider.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_soc_slider.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_soc_slider.c
index 49ff3bae7271..91f291627132 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_soc_slider.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_soc_slider.c
@@ -176,15 +176,21 @@ static inline void write_soc_slider(struct proc_thermal_device *proc_priv, u64 v

static void set_soc_power_profile(struct proc_thermal_device *proc_priv, int slider)
{
+ u8 offset;
u64 val;

val = read_soc_slider(proc_priv);
val &= ~SLIDER_MASK;
val |= FIELD_PREP(SLIDER_MASK, slider) | BIT(SLIDER_ENABLE_BIT);

+ if (slider == SOC_SLIDER_VALUE_MINIMUM || slider == SOC_SLIDER_VALUE_MAXIMUM)
+ offset = 0;
+ else
+ offset = slider_offset;
+
/* Set the slider offset from module params */
val &= ~SLIDER_OFFSET_MASK;
- val |= FIELD_PREP(SLIDER_OFFSET_MASK, slider_offset);
+ val |= FIELD_PREP(SLIDER_OFFSET_MASK, offset);

write_soc_slider(proc_priv, val);
}
--
2.53.0