[PATCH v2 05/18] ACPI: platform_profile: Add `probe` to platform_profile_ops

Kurt Borja
2025-01-14T15:38:24Z

Add a `probe` callback to platform_profile_ops, which lets drivers
initialize the choices member manually.

Signed-off-by: Kurt Borja <kuurtb@gmail.com>
---
drivers/acpi/platform_profile.c | 13 +++++++--
.../surface/surface_platform_profile.c | 16 ++++++----
drivers/platform/x86/acer-wmi.c | 24 ++++++++-------
drivers/platform/x86/amd/pmf/sps.c | 15 ++++++----
drivers/platform/x86/asus-wmi.c | 16 ++++++----
drivers/platform/x86/dell/alienware-wmi.c | 24 +++++++++------
drivers/platform/x86/dell/dell-pc.c | 26 ++++++++++-------
drivers/platform/x86/hp/hp-wmi.c | 29 +++++++++++++------
drivers/platform/x86/ideapad-laptop.c | 15 ++++++----
.../platform/x86/inspur_platform_profile.c | 14 ++++++---
drivers/platform/x86/thinkpad_acpi.c | 15 ++++++----
include/linux/platform_profile.h | 1 +
12 files changed, 137 insertions(+), 71 deletions(-)

diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index 440654e21620..34e22b006ccc 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -466,12 +466,21 @@ int platform_profile_register(struct platform_profile_handler *pprof, void *drvd
int err;

/* Sanity check the profile handler */
- if (!pprof || bitmap_empty(pprof->choices, PLATFORM_PROFILE_LAST) ||
- !pprof->ops->profile_set || !pprof->ops->profile_get) {
+ if (!pprof || !pprof->ops->profile_set || !pprof->ops->profile_get ||
+ !pprof->ops->probe) {
pr_err("platform_profile: handler is invalid\n");
return -EINVAL;
}

+ err = pprof->ops->probe(drvdata, pprof->choices);
+ if (err < 0)
+ return err;
+
+ if (bitmap_empty(pprof->choices, PLATFORM_PROFILE_LAST)) {
+ pr_err("platform_profile: no available profiles\n");
+ return -EINVAL;
+ }
+
guard(mutex)(&profile_lock);

/* create class interface for individual handler */
diff --git a/drivers/platform/surface/surface_platform_profile.c b/drivers/platform/surface/surface_platform_profile.c
index 76967bfeeef8..48cfe9cb89c8 100644
--- a/drivers/platform/surface/surface_platform_profile.c
+++ b/drivers/platform/surface/surface_platform_profile.c
@@ -201,7 +201,18 @@ static int ssam_platform_profile_set(struct device *dev,
return tp;
}

+static int ssam_platform_profile_probe(void *drvdata, unsigned long *choices)
+{
+ set_bit(PLATFORM_PROFILE_LOW_POWER, choices);
+ set_bit(PLATFORM_PROFILE_BALANCED, choices);
+ set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE, choices);
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
+
+ return 0;
+}
+
static const struct platform_profile_ops ssam_platform_profile_ops = {
+ .probe = ssam_platform_profile_probe,
.profile_get = ssam_platform_profile_get,
.profile_set = ssam_platform_profile_set,
};
@@ -223,11 +234,6 @@ static int surface_platform_profile_probe(struct ssam_device *sdev)

tpd->has_fan = device_property_read_bool(&sdev->dev, "has_fan");

- set_bit(PLATFORM_PROFILE_LOW_POWER, tpd->handler.choices);
- set_bit(PLATFORM_PROFILE_BALANCED, tpd->handler.choices);
- set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE, tpd->handler.choices);
- set_bit(PLATFORM_PROFILE_PERFORMANCE, tpd->handler.choices);
-
return platform_profile_register(&tpd->handler, tpd);
}

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 91ae48adf6cf..6953e36dbfde 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -1916,7 +1916,20 @@ acer_predator_v4_platform_profile_set(struct device *dev,
return 0;
}

+static int
+acer_predator_v4_platform_profile_probe(void *drvdata, unsigned long *choices)
+{
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
+ set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE, choices);
+ set_bit(PLATFORM_PROFILE_BALANCED, choices);
+ set_bit(PLATFORM_PROFILE_QUIET, choices);
+ set_bit(PLATFORM_PROFILE_LOW_POWER, choices);
+
+ return 0;
+}
+
static const struct platform_profile_ops acer_predator_v4_platform_profile_ops = {
+ .probe = acer_predator_v4_platform_profile_probe,
.profile_get = acer_predator_v4_platform_profile_get,
.profile_set = acer_predator_v4_platform_profile_set,
};
@@ -1931,17 +1944,6 @@ static int acer_platform_profile_setup(struct platform_device *device)
platform_profile_handler.ops =
&acer_predator_v4_platform_profile_ops;

- set_bit(PLATFORM_PROFILE_PERFORMANCE,
- platform_profile_handler.choices);
- set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE,
- platform_profile_handler.choices);
- set_bit(PLATFORM_PROFILE_BALANCED,
- platform_profile_handler.choices);
- set_bit(PLATFORM_PROFILE_QUIET,
- platform_profile_handler.choices);
- set_bit(PLATFORM_PROFILE_LOW_POWER,
- platform_profile_handler.choices);
-
err = platform_profile_register(&platform_profile_handler, NULL);
if (err)
return err;
diff --git a/drivers/platform/x86/amd/pmf/sps.c b/drivers/platform/x86/amd/pmf/sps.c
index 6ae82ae86d22..e710405b581f 100644
--- a/drivers/platform/x86/amd/pmf/sps.c
+++ b/drivers/platform/x86/amd/pmf/sps.c
@@ -387,7 +387,17 @@ static int amd_pmf_profile_set(struct device *dev,
return 0;
}

+static int amd_pmf_profile_probe(void *drvdata, unsigned long *choices)
+{
+ set_bit(PLATFORM_PROFILE_LOW_POWER, choices);
+ set_bit(PLATFORM_PROFILE_BALANCED, choices);
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
+
+ return 0;
+}
+
static const struct platform_profile_ops amd_pmf_profile_ops = {
+ .probe = amd_pmf_profile_probe,
.profile_get = amd_pmf_profile_get,
.profile_set = amd_pmf_profile_set,
};
@@ -414,11 +424,6 @@ int amd_pmf_init_sps(struct amd_pmf_dev *dev)
dev->pprof.dev = dev->dev;
dev->pprof.ops = &amd_pmf_profile_ops;

- /* Setup supported modes */
- set_bit(PLATFORM_PROFILE_LOW_POWER, dev->pprof.choices);
- set_bit(PLATFORM_PROFILE_BALANCED, dev->pprof.choices);
- set_bit(PLATFORM_PROFILE_PERFORMANCE, dev->pprof.choices);
-
/* Create platform_profile structure and register */
err = platform_profile_register(&dev->pprof, dev);
if (err)
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index d88860dd028b..3d77f7454953 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -3852,7 +3852,17 @@ static int asus_wmi_platform_profile_set(struct device *dev,
return throttle_thermal_policy_write(asus);
}

+static int asus_wmi_platform_profile_probe(void *drvdata, unsigned long *choices)
+{
+ set_bit(PLATFORM_PROFILE_QUIET, choices);
+ set_bit(PLATFORM_PROFILE_BALANCED, choices);
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
+
+ return 0;
+}
+
static const struct platform_profile_ops asus_wmi_platform_profile_ops = {
+ .probe = asus_wmi_platform_profile_probe,
.profile_get = asus_wmi_platform_profile_get,
.profile_set = asus_wmi_platform_profile_set,
};
@@ -3885,12 +3895,6 @@ static int platform_profile_setup(struct asus_wmi *asus)
asus->platform_profile_handler.dev = dev;
asus->platform_profile_handler.ops = &asus_wmi_platform_profile_ops;

- set_bit(PLATFORM_PROFILE_QUIET, asus->platform_profile_handler.choices);
- set_bit(PLATFORM_PROFILE_BALANCED,
- asus->platform_profile_handler.choices);
- set_bit(PLATFORM_PROFILE_PERFORMANCE,
- asus->platform_profile_handler.choices);
-
err = platform_profile_register(&asus->platform_profile_handler, asus);
if (err == -EEXIST) {
pr_warn("%s, a platform_profile handler is already registered\n", __func__);
diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c
index f7a854d40575..0146d2f93be6 100644
--- a/drivers/platform/x86/dell/alienware-wmi.c
+++ b/drivers/platform/x86/dell/alienware-wmi.c
@@ -1078,12 +1078,7 @@ static int thermal_profile_set(struct device *dev,
return wmax_thermal_control(supported_thermal_profiles[profile]);
}

-static const struct platform_profile_ops awcc_platform_profile_ops = {
- .profile_get = thermal_profile_get,
- .profile_set = thermal_profile_set,
-};
-
-static int create_thermal_profile(struct platform_device *platform_device)
+static int thermal_profile_probe(void *drvdata, unsigned long *choices)
{
enum platform_profile_option profile;
enum wmax_thermal_mode mode;
@@ -1116,19 +1111,30 @@ static int create_thermal_profile(struct platform_device *platform_device)
profile = wmax_mode_to_platform_profile[mode];
supported_thermal_profiles[profile] = out_data;

- set_bit(profile, pp_handler.choices);
+ set_bit(profile, choices);
}

- if (bitmap_empty(pp_handler.choices, PLATFORM_PROFILE_LAST))
+ if (bitmap_empty(choices, PLATFORM_PROFILE_LAST))
return -ENODEV;

if (quirks->gmode) {
supported_thermal_profiles[PLATFORM_PROFILE_PERFORMANCE] =
WMAX_THERMAL_MODE_GMODE;

- set_bit(PLATFORM_PROFILE_PERFORMANCE, pp_handler.choices);
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
}

+ return 0;
+}
+
+static const struct platform_profile_ops awcc_platform_profile_ops = {
+ .probe = thermal_profile_probe,
+ .profile_get = thermal_profile_get,
+ .profile_set = thermal_profile_set,
+};
+
+static int create_thermal_profile(struct platform_device *platform_device)
+{
pp_handler.name = "alienware-wmi";
pp_handler.dev = &platform_device->dev;
pp_handler.ops = &awcc_platform_profile_ops;
diff --git a/drivers/platform/x86/dell/dell-pc.c b/drivers/platform/x86/dell/dell-pc.c
index 9010a231f209..32b3be0723f8 100644
--- a/drivers/platform/x86/dell/dell-pc.c
+++ b/drivers/platform/x86/dell/dell-pc.c
@@ -24,6 +24,7 @@
#include "dell-smbios.h"

static struct platform_device *platform_device;
+static int supported_modes;

static const struct dmi_system_id dell_device_table[] __initconst = {
{
@@ -231,7 +232,22 @@ static int thermal_platform_profile_get(struct device *dev,
return 0;
}

+static int thermal_platform_profile_probe(void *drvdata, unsigned long *choices)
+{
+ if (supported_modes & DELL_QUIET)
+ set_bit(PLATFORM_PROFILE_QUIET, choices);
+ if (supported_modes & DELL_COOL_BOTTOM)
+ set_bit(PLATFORM_PROFILE_COOL, choices);
+ if (supported_modes & DELL_BALANCED)
+ set_bit(PLATFORM_PROFILE_BALANCED, choices);
+ if (supported_modes & DELL_PERFORMANCE)
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
+
+ return 0;
+}
+
static const struct platform_profile_ops dell_pc_platform_profile_ops = {
+ .probe = thermal_platform_profile_probe,
.profile_get = thermal_platform_profile_get,
.profile_set = thermal_platform_profile_set,
};
@@ -239,7 +255,6 @@ static const struct platform_profile_ops dell_pc_platform_profile_ops = {
static int thermal_init(void)
{
int ret;
- int supported_modes;

/* If thermal commands are not supported, exit without error */
if (!dell_smbios_class_is_supported(CLASS_INFO))
@@ -265,15 +280,6 @@ static int thermal_init(void)
thermal_handler->dev = &platform_device->dev;
thermal_handler->ops = &dell_pc_platform_profile_ops;

- if (supported_modes & DELL_QUIET)
- set_bit(PLATFORM_PROFILE_QUIET, thermal_handler->choices);
- if (supported_modes & DELL_COOL_BOTTOM)
- set_bit(PLATFORM_PROFILE_COOL, thermal_handler->choices);
- if (supported_modes & DELL_BALANCED)
- set_bit(PLATFORM_PROFILE_BALANCED, thermal_handler->choices);
- if (supported_modes & DELL_PERFORMANCE)
- set_bit(PLATFORM_PROFILE_PERFORMANCE, thermal_handler->choices);
-
/* Clean up if failed */
ret = platform_profile_register(thermal_handler, NULL);
if (ret)
diff --git a/drivers/platform/x86/hp/hp-wmi.c b/drivers/platform/x86/hp/hp-wmi.c
index 60328b35be74..75bcd8460e7c 100644
--- a/drivers/platform/x86/hp/hp-wmi.c
+++ b/drivers/platform/x86/hp/hp-wmi.c
@@ -1488,6 +1488,23 @@ static int platform_profile_victus_set(struct device *dev,
return 0;
}

+static int hp_wmi_platform_profile_probe(void *drvdata, unsigned long *choices)
+{
+ if (is_omen_thermal_profile()) {
+ set_bit(PLATFORM_PROFILE_COOL, choices);
+ } else if (is_victus_thermal_profile()) {
+ set_bit(PLATFORM_PROFILE_QUIET, choices);
+ } else {
+ set_bit(PLATFORM_PROFILE_QUIET, choices);
+ set_bit(PLATFORM_PROFILE_COOL, choices);
+ }
+
+ set_bit(PLATFORM_PROFILE_BALANCED, choices);
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
+
+ return 0;
+}
+
static int omen_powersource_event(struct notifier_block *nb,
unsigned long value,
void *data)
@@ -1566,16 +1583,19 @@ static inline void omen_unregister_powersource_event_handler(void)
}

static const struct platform_profile_ops platform_profile_omen_ops = {
+ .probe = hp_wmi_platform_profile_probe,
.profile_get = platform_profile_omen_get,
.profile_set = platform_profile_omen_set,
};

static const struct platform_profile_ops platform_profile_victus_ops = {
+ .probe = hp_wmi_platform_profile_probe,
.profile_get = platform_profile_victus_get,
.profile_set = platform_profile_victus_set,
};

static const struct platform_profile_ops hp_wmi_platform_profile_ops = {
+ .probe = hp_wmi_platform_profile_probe,
.profile_get = hp_wmi_platform_profile_get,
.profile_set = hp_wmi_platform_profile_set,
};
@@ -1598,8 +1618,6 @@ static int thermal_profile_setup(struct platform_device *device)
return err;

platform_profile_handler.ops = &platform_profile_omen_ops;
-
- set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices);
} else if (is_victus_thermal_profile()) {
err = platform_profile_victus_get_ec(&active_platform_profile);
if (err < 0)
@@ -1614,8 +1632,6 @@ static int thermal_profile_setup(struct platform_device *device)
return err;

platform_profile_handler.ops = &platform_profile_victus_ops;
-
- set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices);
} else {
tp = thermal_profile_get();

@@ -1631,15 +1647,10 @@ static int thermal_profile_setup(struct platform_device *device)
return err;

platform_profile_handler.ops = &hp_wmi_platform_profile_ops;
-
- set_bit(PLATFORM_PROFILE_QUIET, platform_profile_handler.choices);
- set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices);
}

platform_profile_handler.name = "hp-wmi";
platform_profile_handler.dev = &device->dev;
- set_bit(PLATFORM_PROFILE_BALANCED, platform_profile_handler.choices);
- set_bit(PLATFORM_PROFILE_PERFORMANCE, platform_profile_handler.choices);

err = platform_profile_register(&platform_profile_handler, NULL);
if (err)
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 96e99513b0b5..050919a28d2b 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -1023,6 +1023,15 @@ static int dytc_profile_set(struct device *dev,
return -EINTR;
}

+static int dytc_profile_probe(void *drvdata, unsigned long *choices)
+{
+ set_bit(PLATFORM_PROFILE_LOW_POWER, choices);
+ set_bit(PLATFORM_PROFILE_BALANCED, choices);
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
+
+ return 0;
+}
+
static void dytc_profile_refresh(struct ideapad_private *priv)
{
enum platform_profile_option profile;
@@ -1064,6 +1073,7 @@ static const struct dmi_system_id ideapad_dytc_v4_allow_table[] = {
};

static const struct platform_profile_ops dytc_profile_ops = {
+ .probe = dytc_profile_probe,
.profile_get = dytc_profile_get,
.profile_set = dytc_profile_set,
};
@@ -1112,11 +1122,6 @@ static int ideapad_dytc_profile_init(struct ideapad_private *priv)
priv->dytc->priv = priv;
priv->dytc->pprof.ops = &dytc_profile_ops;

- /* Setup supported modes */
- set_bit(PLATFORM_PROFILE_LOW_POWER, priv->dytc->pprof.choices);
- set_bit(PLATFORM_PROFILE_BALANCED, priv->dytc->pprof.choices);
- set_bit(PLATFORM_PROFILE_PERFORMANCE, priv->dytc->pprof.choices);
-
/* Create platform_profile structure and register */
err = platform_profile_register(&priv->dytc->pprof, &priv->dytc);
if (err)
diff --git a/drivers/platform/x86/inspur_platform_profile.c b/drivers/platform/x86/inspur_platform_profile.c
index d0a8e4eebffa..06df3aae9a56 100644
--- a/drivers/platform/x86/inspur_platform_profile.c
+++ b/drivers/platform/x86/inspur_platform_profile.c
@@ -164,7 +164,17 @@ static int inspur_platform_profile_get(struct device *dev,
return 0;
}

+static int inspur_platform_profile_probe(void *drvdata, unsigned long *choices)
+{
+ set_bit(PLATFORM_PROFILE_LOW_POWER, choices);
+ set_bit(PLATFORM_PROFILE_BALANCED, choices);
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
+
+ return 0;
+}
+
static const struct platform_profile_ops inspur_platform_profile_ops = {
+ .probe = inspur_platform_profile_probe,
.profile_get = inspur_platform_profile_get,
.profile_set = inspur_platform_profile_set,
};
@@ -184,10 +194,6 @@ static int inspur_wmi_probe(struct wmi_device *wdev, const void *context)
priv->handler.dev = &wdev->dev;
priv->handler.ops = &inspur_platform_profile_ops;

- set_bit(PLATFORM_PROFILE_LOW_POWER, priv->handler.choices);
- set_bit(PLATFORM_PROFILE_BALANCED, priv->handler.choices);
- set_bit(PLATFORM_PROFILE_PERFORMANCE, priv->handler.choices);
-
return platform_profile_register(&priv->handler, priv);
}

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 9978fd36a3d1..5c250867678f 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -10538,7 +10538,17 @@ static int dytc_profile_set(struct device *dev,
return err;
}

+static int dytc_profile_probe(void *drvdata, unsigned long *choices)
+{
+ set_bit(PLATFORM_PROFILE_LOW_POWER, choices);
+ set_bit(PLATFORM_PROFILE_BALANCED, choices);
+ set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
+
+ return 0;
+}
+
static const struct platform_profile_ops dytc_profile_ops = {
+ .probe = dytc_profile_probe,
.profile_get = dytc_profile_get,
.profile_set = dytc_profile_set,
};
@@ -10584,11 +10594,6 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
{
int err, output;

- /* Setup supported modes */
- set_bit(PLATFORM_PROFILE_LOW_POWER, dytc_profile.choices);
- set_bit(PLATFORM_PROFILE_BALANCED, dytc_profile.choices);
- set_bit(PLATFORM_PROFILE_PERFORMANCE, dytc_profile.choices);
-
err = dytc_command(DYTC_CMD_QUERY, &output);
if (err)
return err;
diff --git a/include/linux/platform_profile.h b/include/linux/platform_profile.h
index 6013c05d7b86..5ad1ab7b75e4 100644
--- a/include/linux/platform_profile.h
+++ b/include/linux/platform_profile.h
@@ -31,6 +31,7 @@ enum platform_profile_option {
struct platform_profile_handler;

struct platform_profile_ops {
+ int (*probe)(void *drvdata, unsigned long *choices);
int (*profile_get)(struct device *dev, enum platform_profile_option *profile);
int (*profile_set)(struct device *dev, enum platform_profile_option profile);
};
--
2.47.1