[PATCH v8 28/29] thermal/intel/int340x: Replace parameter to simplify

Daniel Lezcano
2022-10-03T09:34:38Z

In the process of replacing the get_trip_* ops by the generic trip
points, the current code has an 'override' property to add another
indirection to a different ops.

Rework this approach to prevent this indirection and make the code
ready for the generic trip points conversion.

Actually the get_temp() is different regarding the platform, so it is
pointless to add a new set of ops but just create dynamically the ops
at init time.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
.../int340x_thermal/int340x_thermal_zone.c | 33 +++++++++----------
.../int340x_thermal/int340x_thermal_zone.h | 4 +--
.../processor_thermal_device.c | 10 ++----
3 files changed, 20 insertions(+), 27 deletions(-)

diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 62c0aa5d0783..66cd50e0b50a 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -18,9 +18,6 @@ static int int340x_thermal_get_zone_temp(struct thermal_zone_device *zone,
unsigned long long tmp;
acpi_status status;

- if (d->override_ops && d->override_ops->get_temp)
- return d->override_ops->get_temp(zone, temp);
-
status = acpi_evaluate_integer(d->adev->handle, "_TMP", NULL, &tmp);
if (ACPI_FAILURE(status))
return -EIO;
@@ -46,9 +43,6 @@ static int int340x_thermal_get_trip_temp(struct thermal_zone_device *zone,
struct int34x_thermal_zone *d = zone->devdata;
int i;

- if (d->override_ops && d->override_ops->get_trip_temp)
- return d->override_ops->get_trip_temp(zone, trip, temp);
-
if (trip < d->aux_trip_nr)
*temp = d->aux_trips[trip];
else if (trip == d->crt_trip_id)
@@ -79,9 +73,6 @@ static int int340x_thermal_get_trip_type(struct thermal_zone_device *zone,
struct int34x_thermal_zone *d = zone->devdata;
int i;

- if (d->override_ops && d->override_ops->get_trip_type)
- return d->override_ops->get_trip_type(zone, trip, type);
-
if (trip < d->aux_trip_nr)
*type = THERMAL_TRIP_PASSIVE;
else if (trip == d->crt_trip_id)
@@ -112,9 +103,6 @@ static int int340x_thermal_set_trip_temp(struct thermal_zone_device *zone,
acpi_status status;
char name[10];

- if (d->override_ops && d->override_ops->set_trip_temp)
- return d->override_ops->set_trip_temp(zone, trip, temp);
-
snprintf(name, sizeof(name), "PAT%d", trip);
status = acpi_execute_simple_method(d->adev->handle, name,
millicelsius_to_deci_kelvin(temp));
@@ -134,9 +122,6 @@ static int int340x_thermal_get_trip_hyst(struct thermal_zone_device *zone,
acpi_status status;
unsigned long long hyst;

- if (d->override_ops && d->override_ops->get_trip_hyst)
- return d->override_ops->get_trip_hyst(zone, trip, temp);
-
status = acpi_evaluate_integer(d->adev->handle, "GTSH", NULL, &hyst);
if (ACPI_FAILURE(status))
*temp = 0;
@@ -217,7 +202,7 @@ static struct thermal_zone_params int340x_thermal_params = {
};

struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
- struct thermal_zone_device_ops *override_ops)
+ int (*get_temp) (struct thermal_zone_device *, int *))
{
struct int34x_thermal_zone *int34x_thermal_zone;
acpi_status status;
@@ -231,8 +216,17 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
return ERR_PTR(-ENOMEM);

int34x_thermal_zone->adev = adev;
- int34x_thermal_zone->override_ops = override_ops;

+ int34x_thermal_zone->ops = kmemdup(&int340x_thermal_zone_ops,
+ sizeof(int340x_thermal_zone_ops), GFP_KERNEL);
+ if (!int34x_thermal_zone->ops) {
+ ret = -ENOMEM;
+ goto err_ops_alloc;
+ }
+
+ if (get_temp)
+ 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;
@@ -262,7 +256,7 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
acpi_device_bid(adev),
trip_cnt,
trip_mask, int34x_thermal_zone,
- &int340x_thermal_zone_ops,
+ int34x_thermal_zone->ops,
&int340x_thermal_params,
0, 0);
if (IS_ERR(int34x_thermal_zone->zone)) {
@@ -281,6 +275,8 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
kfree(int34x_thermal_zone->aux_trips);
err_trip_alloc:
+ kfree(int34x_thermal_zone->ops);
+err_ops_alloc:
kfree(int34x_thermal_zone);
return ERR_PTR(ret);
}
@@ -292,6 +288,7 @@ 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->ops);
kfree(int34x_thermal_zone);
}
EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove);
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
index 3b4971df1b33..e28ab1ba5e06 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
@@ -29,13 +29,13 @@ struct int34x_thermal_zone {
int hot_temp;
int hot_trip_id;
struct thermal_zone_device *zone;
- struct thermal_zone_device_ops *override_ops;
+ struct thermal_zone_device_ops *ops;
void *priv_data;
struct acpi_lpat_conversion_table *lpat_table;
};

struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *,
- struct thermal_zone_device_ops *override_ops);
+ int (*get_temp) (struct thermal_zone_device *, int *));
void int340x_thermal_zone_remove(struct int34x_thermal_zone *);
int int340x_thermal_read_trips(struct int34x_thermal_zone *int34x_zone);

diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
index a8d98f1bd6c6..317703027ce9 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
@@ -207,10 +207,6 @@ static int proc_thermal_get_zone_temp(struct thermal_zone_device *zone,
return ret;
}

-static struct thermal_zone_device_ops proc_thermal_local_ops = {
- .get_temp = proc_thermal_get_zone_temp,
-};
-
static int proc_thermal_read_ppcc(struct proc_thermal_device *proc_priv)
{
int i;
@@ -285,7 +281,7 @@ int proc_thermal_add(struct device *dev, struct proc_thermal_device *proc_priv)
struct acpi_device *adev;
acpi_status status;
unsigned long long tmp;
- struct thermal_zone_device_ops *ops = NULL;
+ int (*get_temp) (struct thermal_zone_device *, int *) = NULL;
int ret;

adev = ACPI_COMPANION(dev);
@@ -304,10 +300,10 @@ int proc_thermal_add(struct device *dev, struct proc_thermal_device *proc_priv)
/* there is no _TMP method, add local method */
stored_tjmax = get_tjmax();
if (stored_tjmax > 0)
- ops = &proc_thermal_local_ops;
+ get_temp = proc_thermal_get_zone_temp;
}

- proc_priv->int340x_zone = int340x_thermal_zone_add(adev, ops);
+ proc_priv->int340x_zone = int340x_thermal_zone_add(adev, get_temp);
if (IS_ERR(proc_priv->int340x_zone)) {
return PTR_ERR(proc_priv->int340x_zone);
} else
--
2.34.1