From 5019914ca3b7517b2d82db2e92e3f683ac48e535 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Fri, 10 Jul 2009 14:39:59 +0800 Subject: [PATCH] drm/i915: Fix for LVDS VBT change on IGDNG IGDNG mobile chip's LVDS data block removes panel fitting register definition. So this fixes offset for LVDS timing block parsing. Thanks for Michael Fu to catch this. Signed-off-by: Zhenyu Wang Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_bios.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index da22863c05c0..7cc447191028 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -97,6 +97,7 @@ static void parse_lfp_panel_data(struct drm_i915_private *dev_priv, struct bdb_header *bdb) { + struct drm_device *dev = dev_priv->dev; struct bdb_lvds_options *lvds_options; struct bdb_lvds_lfp_data *lvds_lfp_data; struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs; @@ -132,7 +133,14 @@ parse_lfp_panel_data(struct drm_i915_private *dev_priv, entry = (struct bdb_lvds_lfp_data_entry *) ((uint8_t *)lvds_lfp_data->data + (lfp_data_size * lvds_options->panel_type)); - dvo_timing = &entry->dvo_timing; + + /* On IGDNG mobile, LVDS data block removes panel fitting registers. + So dec 2 dword from dvo_timing offset */ + if (IS_IGDNG(dev)) + dvo_timing = (struct lvds_dvo_timing *) + ((u8 *)&entry->dvo_timing - 8); + else + dvo_timing = &entry->dvo_timing; panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL);