Messages in this thread Patch in this message | | | From | Ben Hutchings <> | Date | Mon, 13 Jun 2016 19:36:37 +0100 | Subject | [PATCH 3.16 070/114] drm/radeon: make sure vertical front porch is at least 1 |
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3.16.36-rc1 review patch. If anyone has any objections, please let me know.
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From: Alex Deucher <alexander.deucher@amd.com>
commit 3104b8128d4d646a574ed9d5b17c7d10752cd70b upstream.
hw doesn't like a 0 value.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/gpu/drm/radeon/atombios_encoders.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -332,6 +332,10 @@ static bool radeon_atom_mode_fixup(struc && (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 LVDS */ if (radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT)) radeon_panel_mode_fixup(encoder, adjusted_mode);
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