Re: [PATCH v1 09/10] ACPI: fan: Store ACPI device pointer in struct acpi_fan

[Armin Wolf <W_Armin@gmx.de>]

Am 11.09.26 um 15:06 schrieb Rafael J. Wysocki:

> From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
>
> In preparation for subsequent changes, instead of storing a fan ACPI
> handle in struct acpi_fan, store a pointer to the corresponding struct
> acpi_device in it.
>
> No intentional functional impact.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>

> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
>   drivers/acpi/fan.h       |  2 +-
>   drivers/acpi/fan_core.c  | 11 ++++++-----
>   drivers/acpi/fan_hwmon.c |  2 +-
>   3 files changed, 8 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/acpi/fan.h b/drivers/acpi/fan.h
> index e20d6ad9df80..3faa247af514 100644
> --- a/drivers/acpi/fan.h
> +++ b/drivers/acpi/fan.h
> @@ -52,7 +52,7 @@ struct acpi_fan_fst {
>   };
>   
>   struct acpi_fan {
> -	acpi_handle handle;
> +	struct acpi_device *adev;
>   	bool acpi4;
>   	bool has_fst;
>   	struct acpi_fan_fif fif;
> diff --git a/drivers/acpi/fan_core.c b/drivers/acpi/fan_core.c
> index 29ca97503deb..8b20b8a55c13 100644
> --- a/drivers/acpi/fan_core.c
> +++ b/drivers/acpi/fan_core.c
> @@ -340,17 +340,18 @@ static int acpi_fan_dsm_init(struct device *dev)
>   		},
>   	};
>   	struct acpi_fan *fan = dev_get_drvdata(dev);
> +	acpi_handle fan_handle = fan->adev->handle;
>   	union acpi_object *obj;
>   	int ret = 0;
>   
> -	if (!acpi_check_dsm(fan->handle, &acpi_fan_microsoft_guid, 0,
> +	if (!acpi_check_dsm(fan_handle, &acpi_fan_microsoft_guid, 0,
>   			    BIT(ACPI_FAN_DSM_GET_TRIP_POINT_GRANULARITY) |
>   			    BIT(ACPI_FAN_DSM_SET_TRIP_POINTS)))
>   		return 0;
>   
>   	dev_info(dev, "Using Microsoft fan extensions\n");
>   
> -	obj = acpi_evaluate_dsm_typed(fan->handle, &acpi_fan_microsoft_guid, 0,
> +	obj = acpi_evaluate_dsm_typed(fan_handle, &acpi_fan_microsoft_guid, 0,
>   				      ACPI_FAN_DSM_GET_TRIP_POINT_GRANULARITY, &dummy,
>   				      ACPI_TYPE_INTEGER);
>   	if (!obj)
> @@ -392,8 +393,8 @@ static int acpi_fan_dsm_set_trip_points(struct device *dev, u64 upper, u64 lower
>   	};
>   	union acpi_object *obj;
>   
> -	obj = acpi_evaluate_dsm(fan->handle, &acpi_fan_microsoft_guid, 0,
> -				ACPI_FAN_DSM_SET_TRIP_POINTS, &in);
> +	obj = acpi_evaluate_dsm(fan->adev->handle, &acpi_fan_microsoft_guid,
> +				0, ACPI_FAN_DSM_SET_TRIP_POINTS, &in);
>   	kfree(obj);
>   
>   	return 0;
> @@ -503,7 +504,7 @@ static int acpi_fan_probe(struct platform_device *pdev)
>   		return -ENOMEM;
>   	}
>   
> -	fan->handle = device->handle;
> +	fan->adev = device;
>   	device->driver_data = fan;
>   	platform_set_drvdata(pdev, fan);
>   
> diff --git a/drivers/acpi/fan_hwmon.c b/drivers/acpi/fan_hwmon.c
> index d3374f8f524b..c5d8419f41c5 100644
> --- a/drivers/acpi/fan_hwmon.c
> +++ b/drivers/acpi/fan_hwmon.c
> @@ -94,7 +94,7 @@ static int acpi_fan_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
>   	struct acpi_fan_fst fst;
>   	int ret;
>   
> -	ret = acpi_fan_get_fst(fan->handle, &fst);
> +	ret = acpi_fan_get_fst(fan->adev->handle, &fst);
>   	if (ret < 0)
>   		return ret;
>