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Date: Thu, 2 Feb 2023 17:53:34 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: rafael@...nel.org, srinivas.pandruvada@...ux.intel.com,
linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
Daniel Lezcano <daniel.lezcano@...nel.org>,
Amit Kucheria <amitk@...nel.org>,
Zhang Rui <rui.zhang@...el.com>
Subject: Re: [PATCH v2] thermal/drivers/intel: Use generic trip points for quark_dts
On Wed, Feb 1, 2023 at 11:36 PM Daniel Lezcano
<daniel.lezcano@...aro.org> wrote:
>
> 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@...nel.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@...aro.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;
> --
Applied as 6.3 material with edited subject and changelog, thanks!
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