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power: supply: core: constify power_supply_battery_info::resist_table

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The power supply core never modifies the resist table.
Reflect this in the API, so drivers can mark their static tables as
const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20241005-power-supply-battery-const-v1-1-c1f721927048@weissschuh.net
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Thomas Weißschuh 2024-10-05 12:04:17 +02:00 committed by Sebastian Reichel
parent 9852d85ec9
commit 58797abed4
2 changed files with 4 additions and 4 deletions
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4
drivers/power/supply/power_supply_core.c
View File

@ -798,7 +798,7 @@ int power_supply_get_battery_info(struct power_supply *psy,
goto out_ret_pointer;
info->resist_table_size = len / (2 * sizeof(__be32));
resist_table = info->resist_table = devm_kcalloc(&psy->dev,
info->resist_table = resist_table = devm_kcalloc(&psy->dev,
info->resist_table_size,
sizeof(*resist_table),
GFP_KERNEL);
@ -982,7 +982,7 @@ EXPORT_SYMBOL_GPL(power_supply_battery_info_get_prop);
*
* Return: the battery internal resistance percent
*/
int power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table,
int power_supply_temp2resist_simple(const struct power_supply_resistance_temp_table *table,
int table_len, int temp)
{
int i, high, low;

4
include/linux/power_supply.h
View File

@ -752,7 +752,7 @@ struct power_supply_battery_info {
int temp_max;
struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX];
int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX];
struct power_supply_resistance_temp_table *resist_table;
const struct power_supply_resistance_temp_table *resist_table;
int resist_table_size;
const struct power_supply_vbat_ri_table *vbat2ri_discharging;
int vbat2ri_discharging_size;
@ -805,7 +805,7 @@ power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info,
int ocv, int temp);
extern int
power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table,
power_supply_temp2resist_simple(const struct power_supply_resistance_temp_table *table,
int table_len, int temp);
extern int power_supply_vbat2ri(struct power_supply_battery_info *info,
int vbat_uv, bool charging);