evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

drm/amdgpu: make sure vertical front porch is at least 1

Browse source 
commit 0126d4b9a516256f2432ca0dc78ab293a8255378 upstream.

hw doesn't like a 0 value.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alex Deucher 2016-05-02 18:54:39 -04:00 • committed by Greg Kroah-Hartman
parent c04e6e9730
commit 3d2ef4c1a7
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/gpu/drm/amd/amdgpu/atombios_encoders.c
View file

@ -298,6 +298,10 @@ bool amdgpu_atombios_encoder_mode_fixup(struct drm_encoder *encoder,
&& (mode->crtc_vsync_start < (mode->crtc_vdisplay + 2)))
adjusted_mode->crtc_vsync_start = adjusted_mode->crtc_vdisplay + 2;
/* vertical FP must be at least 1 */
if (mode->crtc_vsync_start == mode->crtc_vdisplay)
adjusted_mode->crtc_vsync_start++;
/* get the native mode for scaling */
if (amdgpu_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT))
amdgpu_panel_mode_fixup(encoder, adjusted_mode);