[PATCH] drm/amd/display: Fix unused variable warning

[Huang Rui]

On Thu, Jan 27, 2022 at 11:33:50AM +0800, Huang, Tim wrote:
> [Why]
> It will build failed with unused variable 'dc' with
> '-Werror=unused-variable'enabled when CONFIG_DRM_AMD_DC_DCN
> is not defined.
> 
> Signed-off-by: Tim Huang <tim.huang at amd.com>

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

> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 1057f976bec7..8f53c9f6b267 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -1027,7 +1027,6 @@ static int dm_dmub_hw_init(struct amdgpu_device *adev)
>  	const unsigned char *fw_inst_const, *fw_bss_data;
>  	uint32_t i, fw_inst_const_size, fw_bss_data_size;
>  	bool has_hw_support;
> -	struct dc *dc = adev->dm.dc;
>  
>  	if (!dmub_srv)
>  		/* DMUB isn't supported on the ASIC. */
> @@ -1123,7 +1122,7 @@ static int dm_dmub_hw_init(struct amdgpu_device *adev)
>  	case IP_VERSION(3, 1, 3): /* Only for this asic hw internal rev B0 */
>  		hw_params.dpia_supported = true;
>  #if defined(CONFIG_DRM_AMD_DC_DCN)
> -		hw_params.disable_dpia = dc->debug.dpia_debug.bits.disable_dpia;
> +		hw_params.disable_dpia = adev->dm.dc->debug.dpia_debug.bits.disable_dpia;
>  #endif
>  		break;
>  	default:
> -- 
> 2.25.1
>