Hi Gergo,
On 4/6/24 2:01 AM, Gergo Koteles wrote:
> Some laptops have a key to switch platform profiles.
>
> Add a platform_profile_cycle() function to cycle between the enabled
> profiles.
>
> Signed-off-by: Gergo Koteles <so...@irl.hu>
Thank you for your patch, 1 small remark below,
otherwise this looks good to me.
Rafael, may I have your Ack for merging this through the pdx86 tree
together with the rest of the series once my remark has been addressed ?
> ---
> drivers/acpi/platform_profile.c | 39 ++++++++++++++++++++++++++++++++
> include/linux/platform_profile.h | 1 +
> 2 files changed, 40 insertions(+)
>
> diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
> index d418462ab791..acc606af812a 100644
> --- a/drivers/acpi/platform_profile.c
> +++ b/drivers/acpi/platform_profile.c
> @@ -136,6 +136,45 @@ void platform_profile_notify(void)
> }
> EXPORT_SYMBOL_GPL(platform_profile_notify);
>
> +int platform_profile_cycle(void)
> +{
> + enum platform_profile_option profile;
> + enum platform_profile_option next;
> + int err;
> +
> + err = mutex_lock_interruptible(&profile_lock);
> + if (err)
> + return err;
> +
> + if (!cur_profile) {
> + mutex_unlock(&profile_lock);
> + return -ENODEV;
> + }
> +
> + err = cur_profile->profile_get(cur_profile, &profile);
> + if (err) {
> + mutex_unlock(&profile_lock);
> + return err;
> + }
> +
> + next = find_next_bit_wrap(cur_profile->choices,
> + ARRAY_SIZE(profile_names), profile + 1);
> +
> + if (WARN_ON(next == ARRAY_SIZE(profile_names))) {
Other code in drivers/acpi/platform_profile.c uses PLATFORM_PROFILE_LAST
instead of ARRAY_SIZE(profile_names) (these are guaranteed to be equal)
please switch to using PLATFORM_PROFILE_LAST for consistency.
Regards,
Hans
> + mutex_unlock(&profile_lock);
> + return -EINVAL;
> + }
> +
> + err = cur_profile->profile_set(cur_profile, next);
> + mutex_unlock(&profile_lock);
> +
> + if (!err)
> + sysfs_notify(acpi_kobj, NULL, "platform_profile");
> +
> + return err;
> +}
> +EXPORT_SYMBOL_GPL(platform_profile_cycle);
> +
> int platform_profile_register(struct platform_profile_handler *pprof)
> {
> int err;
> diff --git a/include/linux/platform_profile.h
> b/include/linux/platform_profile.h
> index e5cbb6841f3a..f5492ed413f3 100644
> --- a/include/linux/platform_profile.h
> +++ b/include/linux/platform_profile.h
> @@ -36,6 +36,7 @@ struct platform_profile_handler {
>
> int platform_profile_register(struct platform_profile_handler *pprof);
> int platform_profile_remove(void);
> +int platform_profile_cycle(void);
> void platform_profile_notify(void);
>
> #endif /*_PLATFORM_PROFILE_H_*/
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