Unverified Commit 52a67be8 authored by Mario Limonciello's avatar Mario Limonciello Committed by Ilpo Järvinen
Browse files

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: default avatarMark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: default avatarArmin Wolf <W_Armin@gmx.de>
Reviewed-by: default avatarMark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20241206031918.1537-13-mario.limonciello@amd.com


Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
parent 97cab71d

drivers/acpi/platform_profile.c

+41 −0
Original line number Diff line number Diff line
@@ -25,6 +25,28 @@ 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
@@ -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);