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hwmon: (dell-smm) Introduce helper function for data init 

In the future, multiple SMM calling backends will exist,
with each backend being required to initialize its data.
Introduce a helper function for this so the code necessary
to initialize dell_smm_data is not duplicated between
different backends.

Tested-by: <serverror@serverror.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20231123004820.50635-7-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Armin Wolf 2023-11-23 01:48:17 +01:00 committed by Guenter Roeck
parent 5aad36f43b
commit 20bdeebc88
1 changed files with 28 additions and 18 deletions
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46
drivers/hwmon/dell-smm-hwmon.c
View File

@ -623,6 +623,11 @@ static void __init i8k_init_procfs(struct device *dev)
{
struct dell_smm_data *data = dev_get_drvdata(dev);
strscpy(data->bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
sizeof(data->bios_version));
strscpy(data->bios_machineid, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
sizeof(data->bios_machineid));
/* Only register exit function if creation was successful */
if (proc_create_data("i8k", 0, NULL, &i8k_proc_ops, data))
devm_add_action_or_reset(dev, i8k_exit_procfs, NULL);
@ -1078,6 +1083,26 @@ static int __init dell_smm_init_hwmon(struct device *dev)
return PTR_ERR_OR_ZERO(dell_smm_hwmon_dev);
}
static int __init dell_smm_init_data(struct device *dev, const struct dell_smm_ops *ops)
{
struct dell_smm_data *data;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
mutex_init(&data->i8k_mutex);
dev_set_drvdata(dev, data);
data->ops = ops;
/* All options must not be 0 */
data->i8k_fan_mult = fan_mult ? : I8K_FAN_MULT;
data->i8k_fan_max = fan_max ? : I8K_FAN_HIGH;
data->i8k_pwm_mult = DIV_ROUND_UP(255, data->i8k_fan_max);
return 0;
}
static const struct dmi_system_id i8k_dmi_table[] __initconst = {
{
.ident = "Dell G5 5590",
@ -1386,26 +1411,11 @@ static const struct dmi_system_id i8k_whitelist_fan_control[] __initconst = {
static int __init dell_smm_probe(struct platform_device *pdev)
{
struct dell_smm_data *data;
int ret;
data = devm_kzalloc(&pdev->dev, sizeof(struct dell_smm_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
mutex_init(&data->i8k_mutex);
platform_set_drvdata(pdev, data);
data->ops = &i8k_smm_ops;
strscpy(data->bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
sizeof(data->bios_version));
strscpy(data->bios_machineid, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
sizeof(data->bios_machineid));
/* All options must not be 0 */
data->i8k_fan_mult = fan_mult ? : I8K_FAN_MULT;
data->i8k_fan_max = fan_max ? : I8K_FAN_HIGH;
data->i8k_pwm_mult = DIV_ROUND_UP(255, data->i8k_fan_max);
ret = dell_smm_init_data(&pdev->dev, &i8k_smm_ops);
if (ret < 0)
return ret;
ret = dell_smm_init_hwmon(&pdev->dev);
if (ret)