[PATCH] drm/amdgpu: Add error message for DAC setup failure

[Shashank Sharma]

This patch adds a return value check and an error message to
highlight the DAC setup failure case during encoder DPMS
operation.

Cc: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/atombios_encoders.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
index 1e94a9b652f7..3779f933564b 100644
--- a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
+++ b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
@@ -341,8 +341,8 @@ amdgpu_atombios_encoder_setup_dac(struct drm_encoder *encoder, int action)
 	args.ucDacStandard = ATOM_DAC1_PS2;
 	args.usPixelClock = cpu_to_le16(amdgpu_encoder->pixel_clock / 10);
 
-	amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
-
+	if (amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args))
+		DRM_ERROR("AMDGPU: dac setup failed\n");
 }
 
 static u8 amdgpu_atombios_encoder_get_bpc(struct drm_encoder *encoder)
-- 
2.25.1