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mlxsw: core_thermal: Simplify transceiver module get_temp() callback

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The get_temp() callback of a thermal zone associated with a transceiver
module no longer needs to read the temperature thresholds of the module.
Therefore, simplify the callback by only reading the temperature.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2023-03-31 16:17:32 +02:00 committed by David S. Miller
parent c1536d856e
commit cc19439f70
1 changed files with 8 additions and 36 deletions
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44
drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
View file

@ -283,50 +283,22 @@ static int mlxsw_thermal_module_unbind(struct thermal_zone_device *tzdev,
return err;
}
static void
mlxsw_thermal_module_temp_and_thresholds_get(struct mlxsw_core *core,
u8 slot_index, u16 sensor_index,
int *p_temp, int *p_crit_temp,
int *p_emerg_temp)
{
char mtmp_pl[MLXSW_REG_MTMP_LEN];
int err;
/* Read module temperature and thresholds. */
mlxsw_reg_mtmp_pack(mtmp_pl, slot_index, sensor_index,
false, false);
err = mlxsw_reg_query(core, MLXSW_REG(mtmp), mtmp_pl);
if (err) {
/* Set temperature and thresholds to zero to avoid passing
* uninitialized data back to the caller.
*/
*p_temp = 0;
*p_crit_temp = 0;
*p_emerg_temp = 0;
return;
}
mlxsw_reg_mtmp_unpack(mtmp_pl, p_temp, NULL, p_crit_temp, p_emerg_temp,
NULL);
}
static int mlxsw_thermal_module_temp_get(struct thermal_zone_device *tzdev,
int *p_temp)
{
struct mlxsw_thermal_module *tz = tzdev->devdata;
struct mlxsw_thermal *thermal = tz->parent;
int temp, crit_temp, emerg_temp;
char mtmp_pl[MLXSW_REG_MTMP_LEN];
u16 sensor_index;
int err;
sensor_index = MLXSW_REG_MTMP_MODULE_INDEX_MIN + tz->module;
/* Read module temperature and thresholds. */
mlxsw_thermal_module_temp_and_thresholds_get(thermal->core,
tz->slot_index,
sensor_index, &temp,
&crit_temp, &emerg_temp);
*p_temp = temp;
mlxsw_reg_mtmp_pack(mtmp_pl, tz->slot_index, sensor_index,
false, false);
err = mlxsw_reg_query(thermal->core, MLXSW_REG(mtmp), mtmp_pl);
if (err)
return err;
mlxsw_reg_mtmp_unpack(mtmp_pl, p_temp, NULL, NULL, NULL, NULL);
return 0;
}