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| author | Mario Limonciello <mario.limonciello@amd.com> | 2024-12-06 06:19:08 +0300 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2024-12-10 20:18:04 +0300 |
| commit | 52a67be8ee274b14984df1a9f7ae157e11bc08ab (patch) | |
| tree | 77ee666f4f73b9b0432dade6e9e9f4af50d54aa9 /drivers/acpi/platform_profile.c | |
| parent | 97cab71d712b4066e3807c3e33990d6ed7506c2d (diff) | |
| download | linux-52a67be8ee274b14984df1a9f7ae157e11bc08ab.tar.xz | |
ACPI: platform_profile: Add choices attribute for class interface
The `choices` file will show all possible choices that a given platform
profile handler can support.
Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20241206031918.1537-13-mario.limonciello@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers/acpi/platform_profile.c')
| -rw-r--r-- | drivers/acpi/platform_profile.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c index 49a8bd6e97ec..885f41bca6c2 100644 --- a/drivers/acpi/platform_profile.c +++ b/drivers/acpi/platform_profile.c @@ -26,6 +26,28 @@ static_assert(ARRAY_SIZE(profile_names) == PLATFORM_PROFILE_LAST); static DEFINE_IDA(platform_profile_ida); /** + * _commmon_choices_show - Show the available profile choices + * @choices: The available profile choices + * @buf: The buffer to write to + * + * Return: The number of bytes written + */ +static ssize_t _commmon_choices_show(unsigned long *choices, char *buf) +{ + int i, len = 0; + + for_each_set_bit(i, choices, PLATFORM_PROFILE_LAST) { + if (len == 0) + len += sysfs_emit_at(buf, len, "%s", profile_names[i]); + else + len += sysfs_emit_at(buf, len, " %s", profile_names[i]); + } + len += sysfs_emit_at(buf, len, "\n"); + + return len; +} + +/** * name_show - Show the name of the profile handler * @dev: The device * @attr: The attribute @@ -41,8 +63,27 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr, char } static DEVICE_ATTR_RO(name); +/** + * choices_show - Show the available profile choices + * @dev: The device + * @attr: The attribute + * @buf: The buffer to write to + * + * Return: The number of bytes written + */ +static ssize_t choices_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct platform_profile_handler *handler = dev_get_drvdata(dev); + + return _commmon_choices_show(handler->choices, buf); +} +static DEVICE_ATTR_RO(choices); + static struct attribute *profile_attrs[] = { &dev_attr_name.attr, + &dev_attr_choices.attr, NULL }; ATTRIBUTE_GROUPS(profile); |