[PATCH] drm/amd/pp: Skip fan attributes if fan not present

[Huang Rui]

On Fri, Apr 27, 2018 at 01:52:47PM +0800, Rex Zhu wrote:
> With powerplay enabled, also need to skip fan attributes
> if no fan present.
> 
> Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>

Reviewed-by: Huang Rui <ray.huang at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c      | 21 ++++++++-------------
>  drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c |  3 +++
>  2 files changed, 11 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> index d9802d9..2c82126 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> @@ -1364,19 +1364,14 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
>  	struct amdgpu_device *adev = dev_get_drvdata(dev);
>  	umode_t effective_mode = attr->mode;
>  
> -	/* handle non-powerplay limitations */
> -	if (!adev->powerplay.pp_handle) {
> -		/* Skip fan attributes if fan is not present */
> -		if (adev->pm.no_fan &&
> -		    (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
> -		     attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
> -		     attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
> -		     attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
> -			return 0;
> -		/* requires powerplay */
> -		if (attr == &sensor_dev_attr_fan1_input.dev_attr.attr)
> -			return 0;
> -	}
> +
> +	/* Skip fan attributes if fan is not present */
> +	if (adev->pm.no_fan && (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
> +	    attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
> +	    attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
> +	    attr == &sensor_dev_attr_pwm1_min.dev_attr.attr ||
> +	    attr == &sensor_dev_attr_fan1_input.dev_attr.attr))
> +		return 0;
>  
>  	/* Skip limit attributes if DPM is not enabled */
>  	if (!adev->pm.dpm_enabled &&
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
> index d1052b5..43f0ea8 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
> @@ -223,6 +223,9 @@ int hwmgr_hw_init(struct pp_hwmgr *hwmgr)
>  	if (ret)
>  		goto err;
>  
> +	((struct amdgpu_device *)hwmgr->adev)->pm.no_fan =
> +				hwmgr->thermal_controller.fanInfo.bNoFan;
> +
>  	ret = hwmgr->hwmgr_func->backend_init(hwmgr);
>  	if (ret)
>  		goto err1;
> -- 
> 1.9.1
> 
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