diff mbox series

[v2,3/3] thermal/drivers/intel: Use generic trip points int340x

Message ID 20230102180112.1954082-4-daniel.lezcano@kernel.org
State New
Headers
Series Thermal ACPI APIs for generic trip points |

Commit Message

Daniel Lezcano Jan. 2, 2023, 6:01 p.m. UTC 
  From: Daniel Lezcano <daniel.lezcano@linaro.org>

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert the ops content logic into generic trip points and register
them with the thermal zone.

In order to consolidate the code, use the ACPI thermal framework API
to fill the generic trip point from the ACPI tables.

It has been tested on a Intel i7-8650U - x280 with the INT3400, the
PCH, ACPITZ, and x86_pkg_temp. No regression observed so far.

Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
---
 .../int340x_thermal/int340x_thermal_zone.c    | 175 ++++--------------
 .../int340x_thermal/int340x_thermal_zone.h    |  10 +-
 2 files changed, 40 insertions(+), 145 deletions(-)
diff mbox series

Patch

diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 228f44260b27..4f2e518caf8d 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -37,65 +37,6 @@  static int int340x_thermal_get_zone_temp(struct thermal_zone_device *zone,
 	return 0;
 }
 
-static int int340x_thermal_get_trip_temp(struct thermal_zone_device *zone,
-					 int trip, int *temp)
-{
-	struct int34x_thermal_zone *d = zone->devdata;
-	int i;
-
-	if (trip < d->aux_trip_nr)
-		*temp = d->aux_trips[trip];
-	else if (trip == d->crt_trip_id)
-		*temp = d->crt_temp;
-	else if (trip == d->psv_trip_id)
-		*temp = d->psv_temp;
-	else if (trip == d->hot_trip_id)
-		*temp = d->hot_temp;
-	else {
-		for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) {
-			if (d->act_trips[i].valid &&
-			    d->act_trips[i].id == trip) {
-				*temp = d->act_trips[i].temp;
-				break;
-			}
-		}
-		if (i == INT340X_THERMAL_MAX_ACT_TRIP_COUNT)
-			return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int int340x_thermal_get_trip_type(struct thermal_zone_device *zone,
-					 int trip,
-					 enum thermal_trip_type *type)
-{
-	struct int34x_thermal_zone *d = zone->devdata;
-	int i;
-
-	if (trip < d->aux_trip_nr)
-		*type = THERMAL_TRIP_PASSIVE;
-	else if (trip == d->crt_trip_id)
-		*type = THERMAL_TRIP_CRITICAL;
-	else if (trip == d->hot_trip_id)
-		*type = THERMAL_TRIP_HOT;
-	else if (trip == d->psv_trip_id)
-		*type = THERMAL_TRIP_PASSIVE;
-	else {
-		for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) {
-			if (d->act_trips[i].valid &&
-			    d->act_trips[i].id == trip) {
-				*type = THERMAL_TRIP_ACTIVE;
-				break;
-			}
-		}
-		if (i == INT340X_THERMAL_MAX_ACT_TRIP_COUNT)
-			return -EINVAL;
-	}
-
-	return 0;
-}
-
 static int int340x_thermal_set_trip_temp(struct thermal_zone_device *zone,
 				      int trip, int temp)
 {
@@ -109,25 +50,6 @@  static int int340x_thermal_set_trip_temp(struct thermal_zone_device *zone,
 	if (ACPI_FAILURE(status))
 		return -EIO;
 
-	d->aux_trips[trip] = temp;
-
-	return 0;
-}
-
-
-static int int340x_thermal_get_trip_hyst(struct thermal_zone_device *zone,
-		int trip, int *temp)
-{
-	struct int34x_thermal_zone *d = zone->devdata;
-	acpi_status status;
-	unsigned long long hyst;
-
-	status = acpi_evaluate_integer(d->adev->handle, "GTSH", NULL, &hyst);
-	if (ACPI_FAILURE(status))
-		*temp = 0;
-	else
-		*temp = hyst * 100;
-
 	return 0;
 }
 
@@ -138,58 +60,36 @@  static void int340x_thermal_critical(struct thermal_zone_device *zone)
 
 static struct thermal_zone_device_ops int340x_thermal_zone_ops = {
 	.get_temp       = int340x_thermal_get_zone_temp,
-	.get_trip_temp	= int340x_thermal_get_trip_temp,
-	.get_trip_type	= int340x_thermal_get_trip_type,
 	.set_trip_temp	= int340x_thermal_set_trip_temp,
-	.get_trip_hyst =  int340x_thermal_get_trip_hyst,
 	.critical	= int340x_thermal_critical,
 };
 
-static int int340x_thermal_get_trip_config(acpi_handle handle, char *name,
-				      int *temp)
-{
-	unsigned long long r;
-	acpi_status status;
-
-	status = acpi_evaluate_integer(handle, name, NULL, &r);
-	if (ACPI_FAILURE(status))
-		return -EIO;
-
-	*temp = deci_kelvin_to_millicelsius(r);
-
-	return 0;
-}
-
 int int340x_thermal_read_trips(struct int34x_thermal_zone *int34x_zone)
 {
-	int trip_cnt = int34x_zone->aux_trip_nr;
-	int i;
+	int trip_cnt;
+	int i, ret;
 
-	int34x_zone->crt_trip_id = -1;
-	if (!int340x_thermal_get_trip_config(int34x_zone->adev->handle, "_CRT",
-					     &int34x_zone->crt_temp))
-		int34x_zone->crt_trip_id = trip_cnt++;
+	trip_cnt = int34x_zone->aux_trip_nr;
+	
+	ret = thermal_acpi_trip_crit(int34x_zone->adev, &int34x_zone->trips[trip_cnt]);
+	if (!ret)
+		trip_cnt++;
 
-	int34x_zone->hot_trip_id = -1;
-	if (!int340x_thermal_get_trip_config(int34x_zone->adev->handle, "_HOT",
-					     &int34x_zone->hot_temp))
-		int34x_zone->hot_trip_id = trip_cnt++;
+	ret = thermal_acpi_trip_hot(int34x_zone->adev, &int34x_zone->trips[trip_cnt]);
+	if (!ret)
+		trip_cnt++;
 
-	int34x_zone->psv_trip_id = -1;
-	if (!int340x_thermal_get_trip_config(int34x_zone->adev->handle, "_PSV",
-					     &int34x_zone->psv_temp))
-		int34x_zone->psv_trip_id = trip_cnt++;
+	ret = thermal_acpi_trip_psv(int34x_zone->adev, &int34x_zone->trips[trip_cnt]);
+	if (!ret)
+		trip_cnt++;
 
 	for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) {
-		char name[5] = { '_', 'A', 'C', '0' + i, '\0' };
 
-		if (int340x_thermal_get_trip_config(int34x_zone->adev->handle,
-					name,
-					&int34x_zone->act_trips[i].temp))
+		ret = thermal_acpi_trip_act(int34x_zone->adev, &int34x_zone->trips[trip_cnt], i);
+		if (ret)
 			break;
 
-		int34x_zone->act_trips[i].id = trip_cnt++;
-		int34x_zone->act_trips[i].valid = true;
+		trip_cnt++;
 	}
 
 	return trip_cnt;
@@ -208,7 +108,7 @@  struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 	acpi_status status;
 	unsigned long long trip_cnt;
 	int trip_mask = 0;
-	int ret;
+	int i, ret;
 
 	int34x_thermal_zone = kzalloc(sizeof(*int34x_thermal_zone),
 				      GFP_KERNEL);
@@ -228,32 +128,33 @@  struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 		int34x_thermal_zone->ops->get_temp = get_temp;
 
 	status = acpi_evaluate_integer(adev->handle, "PATC", NULL, &trip_cnt);
-	if (ACPI_FAILURE(status))
-		trip_cnt = 0;
-	else {
-		int i;
-
-		int34x_thermal_zone->aux_trips =
-			kcalloc(trip_cnt,
-				sizeof(*int34x_thermal_zone->aux_trips),
-				GFP_KERNEL);
-		if (!int34x_thermal_zone->aux_trips) {
-			ret = -ENOMEM;
-			goto err_trip_alloc;
-		}
-		trip_mask = BIT(trip_cnt) - 1;
+	if (!ACPI_FAILURE(status)) {
 		int34x_thermal_zone->aux_trip_nr = trip_cnt;
-		for (i = 0; i < trip_cnt; ++i)
-			int34x_thermal_zone->aux_trips[i] = THERMAL_TEMP_INVALID;
+		trip_mask = BIT(trip_cnt) - 1;
 	}
 
+	int34x_thermal_zone->trips = kzalloc(sizeof(*int34x_thermal_zone->trips) *
+					     (INT340X_THERMAL_MAX_TRIP_COUNT + trip_cnt),
+					      GFP_KERNEL);
+	if (!int34x_thermal_zone->trips) {
+		ret = -ENOMEM;
+		goto err_trips_alloc;
+	}
+
+	for (i = 0; i < trip_cnt; ++i) {
+		int34x_thermal_zone->trips[i].hysteresis = thermal_acpi_trip_gtsh(adev);
+		int34x_thermal_zone->trips[i].type = THERMAL_TRIP_PASSIVE;
+		int34x_thermal_zone->trips[i].temperature = THERMAL_TEMP_INVALID;
+	}
+	
 	trip_cnt = int340x_thermal_read_trips(int34x_thermal_zone);
 
 	int34x_thermal_zone->lpat_table = acpi_lpat_get_conversion_table(
 								adev->handle);
 
-	int34x_thermal_zone->zone = thermal_zone_device_register(
+	int34x_thermal_zone->zone = thermal_zone_device_register_with_trips(
 						acpi_device_bid(adev),
+						int34x_thermal_zone->trips,
 						trip_cnt,
 						trip_mask, int34x_thermal_zone,
 						int34x_thermal_zone->ops,
@@ -272,9 +173,9 @@  struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 err_enable:
 	thermal_zone_device_unregister(int34x_thermal_zone->zone);
 err_thermal_zone:
+	kfree(int34x_thermal_zone->trips);
 	acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
-	kfree(int34x_thermal_zone->aux_trips);
-err_trip_alloc:
+err_trips_alloc:
 	kfree(int34x_thermal_zone->ops);
 err_ops_alloc:
 	kfree(int34x_thermal_zone);
@@ -287,7 +188,7 @@  void int340x_thermal_zone_remove(struct int34x_thermal_zone
 {
 	thermal_zone_device_unregister(int34x_thermal_zone->zone);
 	acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
-	kfree(int34x_thermal_zone->aux_trips);
+	kfree(int34x_thermal_zone->trips);
 	kfree(int34x_thermal_zone->ops);
 	kfree(int34x_thermal_zone);
 }
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
index e28ab1ba5e06..0c2c8de92014 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
@@ -10,6 +10,7 @@ 
 #include <acpi/acpi_lpat.h>
 
 #define INT340X_THERMAL_MAX_ACT_TRIP_COUNT	10
+#define INT340X_THERMAL_MAX_TRIP_COUNT INT340X_THERMAL_MAX_ACT_TRIP_COUNT + 3
 
 struct active_trip {
 	int temp;
@@ -19,15 +20,8 @@  struct active_trip {
 
 struct int34x_thermal_zone {
 	struct acpi_device *adev;
-	struct active_trip act_trips[INT340X_THERMAL_MAX_ACT_TRIP_COUNT];
-	unsigned long *aux_trips;
+	struct thermal_trip *trips;
 	int aux_trip_nr;
-	int psv_temp;
-	int psv_trip_id;
-	int crt_temp;
-	int crt_trip_id;
-	int hot_temp;
-	int hot_trip_id;
 	struct thermal_zone_device *zone;
 	struct thermal_zone_device_ops *ops;
 	void *priv_data;