thermal: intel: int340x: soc_slider: Set offset only for balanced mode

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: 8306bca ("thermal: intel: int340x: Add module parameter to change slider offset")
Tested-by: Erin Park <[email protected]>
Signed-off-by: Srinivas Pandruvada <[email protected]>
Cc: 6.18+ <[email protected]> # 6.18+
[ rjw: Subject and changelog tweaks ]
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: spandruvada

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);
 }