From:   Daniel Lezcano <daniel.lezcano@linaro.org>
To:     rafael@kernel.org, daniel.lezcano@linaro.org
Cc:     srinivas.pandruvada@linux.intel.com, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Daniel Lezcano <daniel.lezcano@kernel.org>,
        Amit Kucheria <amitk@kernel.org>,
        Zhang Rui <rui.zhang@intel.com>
Subject: [PATCH v2] thermal/drivers/intel: Use generic trip points for quark_dts
Date:   Wed,  1 Feb 2023 23:36:16 +0100
Message-Id: <20230201223617.1306964-1-daniel.lezcano@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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

Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
---

This patch applies on top of linux-pm/linux-next

 V2:
   - Changed get_trip_temp() to return THERMAL_TEMP_INVALID
   - Register unconditonnaly the thermal trips
   - Fixed thermal_zone_device_register() call replaced by the
     _with_trips() version

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 .../thermal/intel/intel_quark_dts_thermal.c   | 55 +++++++------------
 1 file changed, 20 insertions(+), 35 deletions(-)

diff --git a/drivers/thermal/intel/intel_quark_dts_thermal.c b/drivers/thermal/intel/intel_quark_dts_thermal.c
index 3eafc6b0e6c3..97b843fa7568 100644
--- a/drivers/thermal/intel/intel_quark_dts_thermal.c
+++ b/drivers/thermal/intel/intel_quark_dts_thermal.c
@@ -84,6 +84,7 @@
 #define QRK_DTS_MASK_TP_THRES		0xFF
 #define QRK_DTS_SHIFT_TP		8
 #define QRK_DTS_ID_TP_CRITICAL		0
+#define QRK_DTS_ID_TP_HOT		1
 #define QRK_DTS_SAFE_TP_THRES		105
 
 /* Thermal Sensor Register Lock */
@@ -104,6 +105,7 @@ struct soc_sensor_entry {
 	u32 store_ptps;
 	u32 store_dts_enable;
 	struct thermal_zone_device *tzone;
+	struct thermal_trip trips[QRK_MAX_DTS_TRIPS];
 };
 
 static struct soc_sensor_entry *soc_dts;
@@ -172,9 +174,9 @@ static int soc_dts_disable(struct thermal_zone_device *tzd)
 	return ret;
 }
 
-static int _get_trip_temp(int trip, int *temp)
+static int get_trip_temp(int trip)
 {
-	int status;
+	int status, temp;
 	u32 out;
 
 	mutex_lock(&dts_update_mutex);
@@ -183,7 +185,7 @@ static int _get_trip_temp(int trip, int *temp)
 	mutex_unlock(&dts_update_mutex);
 
 	if (status)
-		return status;
+		return THERMAL_TEMP_INVALID;
 
 	/*
 	 * Thermal Sensor Programmable Trip Point Register has 8-bit
@@ -191,21 +193,10 @@ static int _get_trip_temp(int trip, int *temp)
 	 * thresholds. The threshold value is always offset by its
 	 * temperature base (50 degree Celsius).
 	 */
-	*temp = (out >> (trip * QRK_DTS_SHIFT_TP)) & QRK_DTS_MASK_TP_THRES;
-	*temp -= QRK_DTS_TEMP_BASE;
+	temp = (out >> (trip * QRK_DTS_SHIFT_TP)) & QRK_DTS_MASK_TP_THRES;
+	temp -= QRK_DTS_TEMP_BASE;
 
-	return 0;
-}
-
-static inline int sys_get_trip_temp(struct thermal_zone_device *tzd,
-				int trip, int *temp)
-{
-	return _get_trip_temp(trip, temp);
-}
-
-static inline int sys_get_crit_temp(struct thermal_zone_device *tzd, int *temp)
-{
-	return _get_trip_temp(QRK_DTS_ID_TP_CRITICAL, temp);
+	return temp;
 }
 
 static int update_trip_temp(struct soc_sensor_entry *aux_entry,
@@ -262,17 +253,6 @@ static inline int sys_set_trip_temp(struct thermal_zone_device *tzd, int trip,
 	return update_trip_temp(tzd->devdata, trip, temp);
 }
 
-static int sys_get_trip_type(struct thermal_zone_device *thermal,
-		int trip, enum thermal_trip_type *type)
-{
-	if (trip)
-		*type = THERMAL_TRIP_HOT;
-	else
-		*type = THERMAL_TRIP_CRITICAL;
-
-	return 0;
-}
-
 static int sys_get_curr_temp(struct thermal_zone_device *tzd,
 				int *temp)
 {
@@ -315,10 +295,7 @@ static int sys_change_mode(struct thermal_zone_device *tzd,
 
 static struct thermal_zone_device_ops tzone_ops = {
 	.get_temp = sys_get_curr_temp,
-	.get_trip_temp = sys_get_trip_temp,
-	.get_trip_type = sys_get_trip_type,
 	.set_trip_temp = sys_set_trip_temp,
-	.get_crit_temp = sys_get_crit_temp,
 	.change_mode = sys_change_mode,
 };
 
@@ -385,10 +362,18 @@ static struct soc_sensor_entry *alloc_soc_dts(void)
 			goto err_ret;
 	}
 
-	aux_entry->tzone = thermal_zone_device_register("quark_dts",
-			QRK_MAX_DTS_TRIPS,
-			wr_mask,
-			aux_entry, &tzone_ops, NULL, 0, polling_delay);
+	aux_entry->trips[QRK_DTS_ID_TP_CRITICAL].temperature = get_trip_temp(QRK_DTS_ID_TP_CRITICAL);
+	aux_entry->trips[QRK_DTS_ID_TP_CRITICAL].type = THERMAL_TRIP_CRITICAL;
+
+	aux_entry->trips[QRK_DTS_ID_TP_HOT].temperature = get_trip_temp(QRK_DTS_ID_TP_HOT);
+	aux_entry->trips[QRK_DTS_ID_TP_HOT].type = THERMAL_TRIP_HOT;
+
+	aux_entry->tzone = thermal_zone_device_register_with_trips("quark_dts",
+								   aux_entry->trips,
+								   QRK_MAX_DTS_TRIPS,
+								   wr_mask,
+								   aux_entry, &tzone_ops,
+								   NULL, 0, polling_delay);
 	if (IS_ERR(aux_entry->tzone)) {
 		err = PTR_ERR(aux_entry->tzone);
 		goto err_ret;
-- 
2.34.1