Re: [RFC 3/3] drm/amd: Return -EBUSY for amdgpu_pmops_thaw() on success

[Muhammad Usama Anjum <usama.anjum@collabora.com>]

On 10/20/25 9:50 PM, Mario Limonciello (AMD) wrote:
> From: Mario Limonciello <mario.limonciello@amd.com>
> 
> The PM core should be notified that thaw was skipped for the device
> so that if it's tried to be resumed (such as an aborted hibernate)
> that it gets another chance to resume.
> 
> Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Muhammad Usama Anjum <usama.anjum@collabora.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index 61268aa82df4d..d40af069f24dd 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -2681,7 +2681,7 @@ static int amdgpu_pmops_thaw(struct device *dev)
>  
>  	/* do not resume device if it's normal hibernation */
>  	if (!pm_hibernate_is_recovering() && !pm_hibernation_mode_is_suspend())
> -		return 0;
> +		return -EBUSY;
>  
>  	return amdgpu_device_resume(drm_dev, true);
>  }


-- 
---
Thanks,
Usama