Subject: Re: [PATCH 01/14] amdgpu: powerplay: Remove unused function
To: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>,
        Alex Deucher <alexander.deucher@amd.com>,
        =?UTF-8?Q?Christian_K=c3=b6nig?= <christian.koenig@amd.com>,
        David Airlie <airlied@linux.ie>, Rex Zhu <Rex.Zhu@amd.com>,
        Tom St Denis <tom.stdenis@amd.com>,
        Eric Huang <JinHuiEric.Huang@amd.com>, Huang Rui <ray.huang@amd.com>,
        Dan Carpenter <dan.carpenter@oracle.com>,
        "Edward O'Callaghan" <funfunctor@folklore1984.net>,
        Kees Cook <keescook@chromium.org>, "Andrew F. Davis" <afd@ti.com>,
        Hawking Zhang <Hawking.Zhang@amd.com>,
        Baoyou Xie <baoyou.xie@linaro.org>,
        Masahiro Yamada <yamada.masahiro@socionext.com>,
        Colin Ian King <colin.king@canonical.com>,
        =?UTF-8?Q?Nils_Wallm=c3=a9nius?= <nils.wallmenius@gmail.com>,
        Joe Perches <joe@perches.com>, amd-gfx@lists.freedesktop.org,
        dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
References: <20170724133540.32200-1-ricardo.ribalda@gmail.com>
 <20170724133540.32200-2-ricardo.ribalda@gmail.com>
From: Harry Wentland <harry.wentland@amd.com>
Message-ID: <40ac5a58-9e02-0240-ae87-0b1c9375873b@amd.com>
Date: Mon, 24 Jul 2017 10:01:47 -0400
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On 2017-07-24 09:35 AM, Ricardo Ribalda Delgado wrote:
> amd_powerplay_display_configuration_change is never called.
> 
> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
> ---
>  drivers/gpu/drm/amd/powerplay/amd_powerplay.c     | 21 ---------------------
>  drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h |  3 ---
>  2 files changed, 24 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> index f73e80c4bf33..1ee7aa5546bf 100644
> --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
> @@ -1237,27 +1237,6 @@ int amd_powerplay_reset(void *handle)
>  	return pem_handle_event(eventmgr, AMD_PP_EVENT_COMPLETE_INIT, &event_data);
>  }
>  
> -/* export this function to DAL */
> -
> -int amd_powerplay_display_configuration_change(void *handle,
> -	const struct amd_pp_display_configuration *display_config)

This is used and needed by the DC display driver. See
display/amdgpu_dm/amdgpu_dm_services.c:193 in Alex's amd-staging-4.11 tree:

https://cgit.freedesktop.org/~agd5f/linux/tree/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c?h=amd-staging-4.11

Harry

> -{
> -	struct pp_hwmgr  *hwmgr;
> -	struct pp_instance *pp_handle = (struct pp_instance *)handle;
> -	int ret = 0;
> -
> -	ret = pp_check(pp_handle);
> -
> -	if (ret != 0)
> -		return ret;
> -
> -	hwmgr = pp_handle->hwmgr;
> -	mutex_lock(&pp_handle->pp_lock);
> -	phm_store_dal_configuration_data(hwmgr, display_config);
> -	mutex_unlock(&pp_handle->pp_lock);
> -	return 0;
> -}
> -
>  int amd_powerplay_get_display_power_level(void *handle,
>  		struct amd_pp_simple_clock_info *output)
>  {
> diff --git a/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h b/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h
> index 07e9c0b5915d..ae49af5cc5d1 100644
> --- a/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h
> +++ b/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h
> @@ -407,9 +407,6 @@ int amd_powerplay_destroy(void *handle);
>  
>  int amd_powerplay_reset(void *handle);
>  
> -int amd_powerplay_display_configuration_change(void *handle,
> -		const struct amd_pp_display_configuration *input);
> -
>  int amd_powerplay_get_display_power_level(void *handle,
>  		struct amd_pp_simple_clock_info *output);
>  
>