diff options
| author | Vandita Kulkarni <vandita.kulkarni@intel.com> | 2020-01-24 18:28:29 +0530 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2020-02-09 18:30:44 +0200 |
| commit | e73c1486e4c867865fff1cfa0f0315a107ff4c21 (patch) | |
| tree | 7110b89bba0106efb938e7c34a19d46b63173cbb /drivers/gpu | |
| parent | 1788fdf14e518e363bae9d18345d93102f4ee5ad (diff) | |
| download | lwn-e73c1486e4c867865fff1cfa0f0315a107ff4c21.tar.gz lwn-e73c1486e4c867865fff1cfa0f0315a107ff4c21.zip | |
drm/i915/bios: Fix the timing parameters
Fix htotal and vtotal parameters derived from DTD block of VBT. The
values miss the back porch.
Fixes: 33ef6d4fd8df ("drm/i915/vbt: Handle generic DTD block")
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200124125829.16973-1-vandita.kulkarni@intel.com
(cherry picked from commit ad278f358446707d03a1fe89f880e6ac80ca06cd)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_bios.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 8beac06e3f10..ef4017a1baba 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -357,14 +357,16 @@ parse_generic_dtd(struct drm_i915_private *dev_priv, panel_fixed_mode->hdisplay + dtd->hfront_porch; panel_fixed_mode->hsync_end = panel_fixed_mode->hsync_start + dtd->hsync; - panel_fixed_mode->htotal = panel_fixed_mode->hsync_end; + panel_fixed_mode->htotal = + panel_fixed_mode->hdisplay + dtd->hblank; panel_fixed_mode->vdisplay = dtd->vactive; panel_fixed_mode->vsync_start = panel_fixed_mode->vdisplay + dtd->vfront_porch; panel_fixed_mode->vsync_end = panel_fixed_mode->vsync_start + dtd->vsync; - panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end; + panel_fixed_mode->vtotal = + panel_fixed_mode->vdisplay + dtd->vblank; panel_fixed_mode->clock = dtd->pixel_clock; panel_fixed_mode->width_mm = dtd->width_mm; |