Re: [PATCH v4 02/19] ACPI: platform_profile: Let drivers set drvdata to the class device

Maximilian Luz
2025-01-19T14:55:39Z

On 1/16/25 1:27 AM, Kurt Borja wrote:
> Add *drvdata to platform_profile_register() signature and assign it to
> the class device.
>
> While at it, pass specific driver state as drvdata to replace uses of
> container_of() with dev_get_drvdata().
>
> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
> Signed-off-by: Kurt Borja <kuurtb@gmail.com>

Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>

> ---
> drivers/acpi/platform_profile.c | 7 ++++---
> drivers/platform/surface/surface_platform_profile.c | 6 +++---
> drivers/platform/x86/acer-wmi.c | 2 +-
> drivers/platform/x86/amd/pmf/sps.c | 6 +++---
> drivers/platform/x86/asus-wmi.c | 6 +++---
> drivers/platform/x86/dell/alienware-wmi.c | 2 +-
> drivers/platform/x86/dell/dell-pc.c | 2 +-
> drivers/platform/x86/hp/hp-wmi.c | 2 +-
> drivers/platform/x86/ideapad-laptop.c | 6 +++---
> drivers/platform/x86/inspur_platform_profile.c | 8 +++-----
> drivers/platform/x86/thinkpad_acpi.c | 2 +-
> include/linux/platform_profile.h | 4 ++--
> 12 files changed, 26 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
> index 15f24adc57d4..689541d2e66c 100644
> --- a/drivers/acpi/platform_profile.c
> +++ b/drivers/acpi/platform_profile.c
> @@ -460,7 +460,7 @@ int platform_profile_cycle(void)
> }
> EXPORT_SYMBOL_GPL(platform_profile_cycle);
>
> -int platform_profile_register(struct platform_profile_handler *pprof)
> +int platform_profile_register(struct platform_profile_handler *pprof, void *drvdata)
> {
> int err;
>
> @@ -480,6 +480,7 @@ int platform_profile_register(struct platform_profile_handler *pprof)
>
> pprof->class_dev.class = &platform_profile_class;
> pprof->class_dev.parent = pprof->dev;
> + dev_set_drvdata(&pprof->class_dev, drvdata);
> dev_set_name(&pprof->class_dev, "platform-profile-%d", pprof->minor);
> err = device_register(&pprof->class_dev);
> if (err) {
> @@ -529,7 +530,7 @@ static void devm_platform_profile_release(struct device *dev, void *res)
> platform_profile_remove(*pprof);
> }
>
> -int devm_platform_profile_register(struct platform_profile_handler *pprof)
> +int devm_platform_profile_register(struct platform_profile_handler *pprof, void *drvdata)
> {
> struct platform_profile_handler **dr;
> int ret;
> @@ -538,7 +539,7 @@ int devm_platform_profile_register(struct platform_profile_handler *pprof)
> if (!dr)
> return -ENOMEM;
>
> - ret = platform_profile_register(pprof);
> + ret = platform_profile_register(pprof, drvdata);
> if (ret) {
> devres_free(dr);
> return ret;
> diff --git a/drivers/platform/surface/surface_platform_profile.c b/drivers/platform/surface/surface_platform_profile.c
> index 6c87e982bfc8..edb9362003a4 100644
> --- a/drivers/platform/surface/surface_platform_profile.c
> +++ b/drivers/platform/surface/surface_platform_profile.c
> @@ -161,7 +161,7 @@ static int ssam_platform_profile_get(struct platform_profile_handler *pprof,
> enum ssam_tmp_profile tp;
> int status;
>
> - tpd = container_of(pprof, struct ssam_platform_profile_device, handler);
> + tpd = dev_get_drvdata(&pprof->class_dev);
>
> status = ssam_tmp_profile_get(tpd->sdev, &tp);
> if (status)
> @@ -181,7 +181,7 @@ static int ssam_platform_profile_set(struct platform_profile_handler *pprof,
> struct ssam_platform_profile_device *tpd;
> int tp;
>
> - tpd = container_of(pprof, struct ssam_platform_profile_device, handler);
> + tpd = dev_get_drvdata(&pprof->class_dev);
>
> tp = convert_profile_to_ssam_tmp(tpd->sdev, profile);
> if (tp < 0)
> @@ -224,7 +224,7 @@ static int surface_platform_profile_probe(struct ssam_device *sdev)
> set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE, tpd->handler.choices);
> set_bit(PLATFORM_PROFILE_PERFORMANCE, tpd->handler.choices);
>
> - return platform_profile_register(&tpd->handler);
> + return platform_profile_register(&tpd->handler, tpd);
> }
>
> static void surface_platform_profile_remove(struct ssam_device *sdev)
> diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
> index acf610d59168..1aedf0ef4189 100644
> --- a/drivers/platform/x86/acer-wmi.c
> +++ b/drivers/platform/x86/acer-wmi.c
> @@ -2073,7 +2073,7 @@ static int acer_platform_profile_setup(struct platform_device *device)
> ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO;
> }
>
> - err = platform_profile_register(&platform_profile_handler);
> + 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 bd2bd6cfc39a..259a598acd3e 100644
> --- a/drivers/platform/x86/amd/pmf/sps.c
> +++ b/drivers/platform/x86/amd/pmf/sps.c
> @@ -285,7 +285,7 @@ bool is_pprof_balanced(struct amd_pmf_dev *pmf)
> static int amd_pmf_profile_get(struct platform_profile_handler *pprof,
> enum platform_profile_option *profile)
> {
> - struct amd_pmf_dev *pmf = container_of(pprof, struct amd_pmf_dev, pprof);
> + struct amd_pmf_dev *pmf = dev_get_drvdata(&pprof->class_dev);
>
> *profile = pmf->current_profile;
> return 0;
> @@ -366,7 +366,7 @@ int amd_pmf_power_slider_update_event(struct amd_pmf_dev *dev)
> static int amd_pmf_profile_set(struct platform_profile_handler *pprof,
> enum platform_profile_option profile)
> {
> - struct amd_pmf_dev *pmf = container_of(pprof, struct amd_pmf_dev, pprof);
> + struct amd_pmf_dev *pmf = dev_get_drvdata(&pprof->class_dev);
> int ret = 0;
>
> pmf->current_profile = profile;
> @@ -416,7 +416,7 @@ int amd_pmf_init_sps(struct amd_pmf_dev *dev)
> set_bit(PLATFORM_PROFILE_PERFORMANCE, dev->pprof.choices);
>
> /* Create platform_profile structure and register */
> - err = platform_profile_register(&dev->pprof);
> + err = platform_profile_register(&dev->pprof, dev);
> if (err)
> dev_err(dev->dev, "Failed to register SPS support, this is most likely an SBIOS bug: %d\n",
> err);
> diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
> index 6c674de60ec0..f91099792cb9 100644
> --- a/drivers/platform/x86/asus-wmi.c
> +++ b/drivers/platform/x86/asus-wmi.c
> @@ -3806,7 +3806,7 @@ static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof,
> struct asus_wmi *asus;
> int tp;
>
> - asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
> + asus = dev_get_drvdata(&pprof->class_dev);
> tp = asus->throttle_thermal_policy_mode;
>
> switch (tp) {
> @@ -3832,7 +3832,7 @@ static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof,
> struct asus_wmi *asus;
> int tp;
>
> - asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
> + asus = dev_get_drvdata(&pprof->class_dev);
>
> switch (profile) {
> case PLATFORM_PROFILE_PERFORMANCE:
> @@ -3887,7 +3887,7 @@ static int platform_profile_setup(struct asus_wmi *asus)
> set_bit(PLATFORM_PROFILE_PERFORMANCE,
> asus->platform_profile_handler.choices);
>
> - err = platform_profile_register(&asus->platform_profile_handler);
> + err = platform_profile_register(&asus->platform_profile_handler, asus);
> if (err == -EEXIST) {
> pr_warn("%s, a platform_profile handler is already registered\n", __func__);
> return 0;
> diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c
> index d7f577e0d146..154c417a438c 100644
> --- a/drivers/platform/x86/dell/alienware-wmi.c
> +++ b/drivers/platform/x86/dell/alienware-wmi.c
> @@ -1129,7 +1129,7 @@ static int create_thermal_profile(struct platform_device *platform_device)
> pp_handler.name = "alienware-wmi";
> pp_handler.dev = &platform_device->dev;
>
> - return devm_platform_profile_register(&pp_handler);
> + return devm_platform_profile_register(&pp_handler, NULL);
> }
>
> /*
> diff --git a/drivers/platform/x86/dell/dell-pc.c b/drivers/platform/x86/dell/dell-pc.c
> index 3797a5721dbd..1a0a721d706f 100644
> --- a/drivers/platform/x86/dell/dell-pc.c
> +++ b/drivers/platform/x86/dell/dell-pc.c
> @@ -271,7 +271,7 @@ static int thermal_init(void)
> set_bit(PLATFORM_PROFILE_PERFORMANCE, thermal_handler->choices);
>
> /* Clean up if failed */
> - ret = platform_profile_register(thermal_handler);
> + ret = platform_profile_register(thermal_handler, NULL);
> if (ret)
> goto cleanup_thermal_handler;
>
> diff --git a/drivers/platform/x86/hp/hp-wmi.c b/drivers/platform/x86/hp/hp-wmi.c
> index 6d6e13a0c6e2..8e5e1422e024 100644
> --- a/drivers/platform/x86/hp/hp-wmi.c
> +++ b/drivers/platform/x86/hp/hp-wmi.c
> @@ -1629,7 +1629,7 @@ static int thermal_profile_setup(struct platform_device *device)
> 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);
> + err = platform_profile_register(&platform_profile_handler, NULL);
> if (err)
> return err;
>
> diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
> index dc98f862a06d..ed0d880a07a9 100644
> --- a/drivers/platform/x86/ideapad-laptop.c
> +++ b/drivers/platform/x86/ideapad-laptop.c
> @@ -936,7 +936,7 @@ static int convert_profile_to_dytc(enum platform_profile_option profile, int *pe
> static int dytc_profile_get(struct platform_profile_handler *pprof,
> enum platform_profile_option *profile)
> {
> - struct ideapad_dytc_priv *dytc = container_of(pprof, struct ideapad_dytc_priv, pprof);
> + struct ideapad_dytc_priv *dytc = dev_get_drvdata(&pprof->class_dev);
>
> *profile = dytc->current_profile;
> return 0;
> @@ -989,7 +989,7 @@ static int dytc_cql_command(struct ideapad_private *priv, unsigned long cmd,
> static int dytc_profile_set(struct platform_profile_handler *pprof,
> enum platform_profile_option profile)
> {
> - struct ideapad_dytc_priv *dytc = container_of(pprof, struct ideapad_dytc_priv, pprof);
> + struct ideapad_dytc_priv *dytc = dev_get_drvdata(&pprof->class_dev);
> struct ideapad_private *priv = dytc->priv;
> unsigned long output;
> int err;
> @@ -1114,7 +1114,7 @@ static int ideapad_dytc_profile_init(struct ideapad_private *priv)
> set_bit(PLATFORM_PROFILE_PERFORMANCE, priv->dytc->pprof.choices);
>
> /* Create platform_profile structure and register */
> - err = platform_profile_register(&priv->dytc->pprof);
> + err = platform_profile_register(&priv->dytc->pprof, &priv->dytc);
> if (err)
> goto pp_reg_failed;
>
> diff --git a/drivers/platform/x86/inspur_platform_profile.c b/drivers/platform/x86/inspur_platform_profile.c
> index 53af73a7fbf7..471fca50d1c9 100644
> --- a/drivers/platform/x86/inspur_platform_profile.c
> +++ b/drivers/platform/x86/inspur_platform_profile.c
> @@ -87,8 +87,7 @@ static int inspur_wmi_perform_query(struct wmi_device *wdev,
> static int inspur_platform_profile_set(struct platform_profile_handler *pprof,
> enum platform_profile_option profile)
> {
> - struct inspur_wmi_priv *priv = container_of(pprof, struct inspur_wmi_priv,
> - handler);
> + struct inspur_wmi_priv *priv = dev_get_drvdata(&pprof->class_dev);
> u8 ret_code[4] = {0, 0, 0, 0};
> int ret;
>
> @@ -135,8 +134,7 @@ static int inspur_platform_profile_set(struct platform_profile_handler *pprof,
> static int inspur_platform_profile_get(struct platform_profile_handler *pprof,
> enum platform_profile_option *profile)
> {
> - struct inspur_wmi_priv *priv = container_of(pprof, struct inspur_wmi_priv,
> - handler);
> + struct inspur_wmi_priv *priv = dev_get_drvdata(&pprof->class_dev);
> u8 ret_code[4] = {0, 0, 0, 0};
> int ret;
>
> @@ -186,7 +184,7 @@ static int inspur_wmi_probe(struct wmi_device *wdev, const void *context)
> set_bit(PLATFORM_PROFILE_BALANCED, priv->handler.choices);
> set_bit(PLATFORM_PROFILE_PERFORMANCE, priv->handler.choices);
>
> - return platform_profile_register(&priv->handler);
> + return platform_profile_register(&priv->handler, priv);
> }
>
> static void inspur_wmi_remove(struct wmi_device *wdev)
> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
> index d99573e7a983..8be3f4e5366d 100644
> --- a/drivers/platform/x86/thinkpad_acpi.c
> +++ b/drivers/platform/x86/thinkpad_acpi.c
> @@ -10641,7 +10641,7 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
>
> dytc_profile.dev = &tpacpi_pdev->dev;
> /* Create platform_profile structure and register */
> - err = platform_profile_register(&dytc_profile);
> + err = platform_profile_register(&dytc_profile, NULL);
> /*
> * If for some reason platform_profiles aren't enabled
> * don't quit terminally.
> diff --git a/include/linux/platform_profile.h b/include/linux/platform_profile.h
> index 8a9b8754f9ac..1c8fdda51eaa 100644
> --- a/include/linux/platform_profile.h
> +++ b/include/linux/platform_profile.h
> @@ -40,9 +40,9 @@ struct platform_profile_handler {
> enum platform_profile_option profile);
> };
>
> -int platform_profile_register(struct platform_profile_handler *pprof);
> +int platform_profile_register(struct platform_profile_handler *pprof, void *drvdata);
> int platform_profile_remove(struct platform_profile_handler *pprof);
> -int devm_platform_profile_register(struct platform_profile_handler *pprof);
> +int devm_platform_profile_register(struct platform_profile_handler *pprof, void *drvdata);
> int platform_profile_cycle(void);
> void platform_profile_notify(struct platform_profile_handler *pprof);
>