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Date: Fri, 3 Feb 2023 20:29:02 -0800
From: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To: rafael@...nel.org
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
daniel.lezcano@...aro.org, rui.zhang@...el.com,
Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [PATCH v2] thermal: intel_powerclamp: Return last requested state as cur_state
When the user is reading cur_state from the thermal cooling device for
Intel powerclamp device:
- It returns the idle ratio from Package C-state counters when
there is active idle injection session.
- -1, when there is no active idle injection session.
This information is not very useful as the package C-state counters vary
a lot from read to read. Instead just return the last requested cur_state.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
---
v2:
Fixed setting of *state
drivers/thermal/intel/intel_powerclamp.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/drivers/thermal/intel/intel_powerclamp.c b/drivers/thermal/intel/intel_powerclamp.c
index 5f54c88b1977..0282503ecaaf 100644
--- a/drivers/thermal/intel/intel_powerclamp.c
+++ b/drivers/thermal/intel/intel_powerclamp.c
@@ -539,17 +539,7 @@ static int powerclamp_get_cur_state(struct thermal_cooling_device *cdev,
unsigned long *state)
{
mutex_lock(&powerclamp_lock);
-
- if (powerclamp_data.clamping) {
- if (poll_pkg_cstate_enable)
- *state = pkg_cstate_ratio_cur;
- else
- *state = powerclamp_data.target_ratio;
- } else {
- /* to save power, do not poll idle ratio while not clamping */
- *state = -1; /* indicates invalid state */
- }
-
+ *state = powerclamp_data.target_ratio;
mutex_unlock(&powerclamp_lock);
return 0;
--
2.17.1
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