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SubjectRe: [PATCH v1 17/33] thermal/drivers/rcar: Switch to new of API
Hi Daniel,

Thanks for your work.

On 2022-07-10 23:24:07 +0200, Daniel Lezcano wrote:
> The thermal OF code has a new API allowing to migrate the OF
> initialization to a simpler approach.
>
> Use this new API.

I tested this together with the series it depends on and while
temperature monitoring seems to work fine it breaks the emul_temp
interface (/sys/class/thermal/thermal_zone2/emul_temp).

Before this change I can write a temperature to this file and have it
trigger actions, in my test-case changing the cooling state, which I
observe in /sys/class/thermal/cooling_device0/cur_state.

Likewise before this change I could trip the critical trip-point that
would power off the board using the emul_temp interface, this too no
longer works,

echo 120000 > /sys/class/thermal/thermal_zone2/emul_temp

Is this an intention change of the new API?

>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
> ---
> drivers/thermal/rcar_gen3_thermal.c | 16 ++++++++--------
> drivers/thermal/rcar_thermal.c | 13 +++----------
> 2 files changed, 11 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
> index 43eb25b167bc..29946114a8f9 100644
> --- a/drivers/thermal/rcar_gen3_thermal.c
> +++ b/drivers/thermal/rcar_gen3_thermal.c
> @@ -164,9 +164,9 @@ static int rcar_gen3_thermal_round(int temp)
> return result * RCAR3_THERMAL_GRAN;
> }
>
> -static int rcar_gen3_thermal_get_temp(void *devdata, int *temp)
> +static int rcar_gen3_thermal_get_temp(struct thermal_zone_device *tz, int *temp)
> {
> - struct rcar_gen3_thermal_tsc *tsc = devdata;
> + struct rcar_gen3_thermal_tsc *tsc = tz->devdata;
> int mcelsius, val;
> int reg;
>
> @@ -203,9 +203,9 @@ static int rcar_gen3_thermal_mcelsius_to_temp(struct rcar_gen3_thermal_tsc *tsc,
> return INT_FIXPT(val);
> }
>
> -static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high)
> +static int rcar_gen3_thermal_set_trips(struct thermal_zone_device *tz, int low, int high)
> {
> - struct rcar_gen3_thermal_tsc *tsc = devdata;
> + struct rcar_gen3_thermal_tsc *tsc = tz->devdata;
> u32 irqmsk = 0;
>
> if (low != -INT_MAX) {
> @@ -225,7 +225,7 @@ static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high)
> return 0;
> }
>
> -static struct thermal_zone_of_device_ops rcar_gen3_tz_of_ops = {
> +static struct thermal_zone_device_ops rcar_gen3_tz_of_ops = {
> .get_temp = rcar_gen3_thermal_get_temp,
> .set_trips = rcar_gen3_thermal_set_trips,
> };
> @@ -504,8 +504,8 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
> for (i = 0; i < priv->num_tscs; i++) {
> struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i];
>
> - zone = devm_thermal_zone_of_sensor_register(dev, i, tsc,
> - &rcar_gen3_tz_of_ops);
> + zone = devm_thermal_of_zone_register(dev, i, tsc,
> + &rcar_gen3_tz_of_ops);
> if (IS_ERR(zone)) {
> dev_err(dev, "Can't register thermal zone\n");
> ret = PTR_ERR(zone);
> @@ -556,7 +556,7 @@ static int __maybe_unused rcar_gen3_thermal_resume(struct device *dev)
>
> priv->thermal_init(tsc);
> if (zone->ops->set_trips)
> - rcar_gen3_thermal_set_trips(tsc, zone->prev_low_trip,
> + rcar_gen3_thermal_set_trips(zone, zone->prev_low_trip,
> zone->prev_high_trip);
> }
>
> diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
> index 1d729ed4d685..4df42d70d867 100644
> --- a/drivers/thermal/rcar_thermal.c
> +++ b/drivers/thermal/rcar_thermal.c
> @@ -271,13 +271,6 @@ static int rcar_thermal_get_current_temp(struct rcar_thermal_priv *priv,
> return 0;
> }
>
> -static int rcar_thermal_of_get_temp(void *data, int *temp)
> -{
> - struct rcar_thermal_priv *priv = data;
> -
> - return rcar_thermal_get_current_temp(priv, temp);
> -}
> -
> static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp)
> {
> struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
> @@ -323,8 +316,8 @@ static int rcar_thermal_get_trip_temp(struct thermal_zone_device *zone,
> return 0;
> }
>
> -static const struct thermal_zone_of_device_ops rcar_thermal_zone_of_ops = {
> - .get_temp = rcar_thermal_of_get_temp,
> +static struct thermal_zone_device_ops rcar_thermal_zone_of_ops = {
> + .get_temp = rcar_thermal_get_temp,
> };
>
> static struct thermal_zone_device_ops rcar_thermal_zone_ops = {
> @@ -534,7 +527,7 @@ static int rcar_thermal_probe(struct platform_device *pdev)
> goto error_unregister;
>
> if (chip->use_of_thermal) {
> - priv->zone = devm_thermal_zone_of_sensor_register(
> + priv->zone = devm_thermal_of_zone_register(
> dev, i, priv,
> &rcar_thermal_zone_of_ops);
> } else {
> --
> 2.25.1
>

--
Kind Regards,
Niklas Söderlund

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