From 5329181dae9f28ec22f847f2127e81d505c22719 Mon Sep 17 00:00:00 2001 From: Vandita Kulkarni Date: Fri, 24 Jan 2020 18:28:29 +0530 Subject: [PATCH] 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: d677effda7dc ("drm/i915/vbt: Handle generic DTD block") Signed-off-by: Vandita Kulkarni Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20200124125829.16973-1-vandita.kulkarni@intel.com (cherry picked from commit ad278f358446707d03a1fe89f880e6ac80ca06cd) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_bios.c | 6 ++++-- 1 file 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 8beac06e3f10f..ef4017a1babaa 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; -- 2.39.5