[PATCH] drm/amd/pm: Add waiting for response of mode-reset message for yellow carp

[Huang Rui]

On Tue, Jul 13, 2021 at 03:00:57PM +0800, Liu, Aaron wrote:
> Remove mdelay process and use smu_cmn_send_smc_msg_with_param to send
> mode-reset message to SMC.
> 
> Signed-off-by: Aaron Liu <aaron.liu at amd.com>

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

> ---
>  drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c | 10 +++-------
>  1 file changed, 3 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
> index de92f713a911..0cfeb9fc7c03 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c
> @@ -298,13 +298,9 @@ static int yellow_carp_mode_reset(struct smu_context *smu, int type)
>  	if (index < 0)
>  		return index == -EACCES ? 0 : index;
>  
> -	mutex_lock(&smu->message_lock);
> -
> -	ret = smu_cmn_send_msg_without_waiting(smu, (uint16_t)index, type);
> -
> -	mutex_unlock(&smu->message_lock);
> -
> -	mdelay(10);
> +	ret = smu_cmn_send_smc_msg_with_param(smu, (uint16_t)index, type, NULL);
> +	if (ret)
> +		dev_err(smu->adev->dev, "Failed to mode reset!\n");
>  
>  	return ret;
>  }
> -- 
> 2.25.1
>