From 0ead5f81d4200b63cf92be867bfbd6708056e4a8 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 28 Sep 2017 11:22:04 +0300
Subject: [PATCH] drm/i915/bios: don't pass bdb to parsers that don't parse VBT directly
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Git-commit: 0ead5f81d4200b63cf92be867bfbd6708056e4a8
Patch-mainline: v4.15-rc1
References: FATE#322643 bsc#1055900
Hint that you're not supposed to look at VBT in these functions.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b82c326be8c796a70bdc2bd1c479bbb6159f5cb0.1506586821.git.jani.nikula@intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/intel_bios.c | 20 +++++++++-----------
1 file changed, 9 insertions(+), 11 deletions(-)
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -438,8 +438,7 @@ child_device_ptr(const struct bdb_genera
}
static void
-parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
- const struct bdb_header *bdb)
+parse_sdvo_device_mapping(struct drm_i915_private *dev_priv, u8 bdb_version)
{
struct sdvo_device_mapping *mapping;
const struct child_device_config *child;
@@ -1073,7 +1072,7 @@ static void sanitize_aux_ch(struct drm_i
}
static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
- const struct bdb_header *bdb)
+ u8 bdb_version)
{
struct child_device_config *it, *child = NULL;
struct ddi_vbt_port_info *info = &dev_priv->vbt.ddi_port_info[port];
@@ -1177,7 +1176,7 @@ static void parse_ddi_port(struct drm_i9
sanitize_aux_ch(dev_priv, port);
}
- if (bdb->version >= 158) {
+ if (bdb_version >= 158) {
/* The VBT HDMI level shift values match the table we have. */
hdmi_level_shift = child->hdmi_level_shifter_value;
DRM_DEBUG_KMS("VBT HDMI level shift for port %c: %d\n",
@@ -1187,7 +1186,7 @@ static void parse_ddi_port(struct drm_i9
}
/* Parse the I_boost config for SKL and above */
- if (bdb->version >= 196 && child->iboost) {
+ if (bdb_version >= 196 && child->iboost) {
info->dp_boost_level = translate_iboost(child->dp_iboost_level);
DRM_DEBUG_KMS("VBT (e)DP boost level for port %c: %d\n",
port_name(port), info->dp_boost_level);
@@ -1197,8 +1196,7 @@ static void parse_ddi_port(struct drm_i9
}
}
-static void parse_ddi_ports(struct drm_i915_private *dev_priv,
- const struct bdb_header *bdb)
+static void parse_ddi_ports(struct drm_i915_private *dev_priv, u8 bdb_version)
{
enum port port;
@@ -1208,11 +1206,11 @@ static void parse_ddi_ports(struct drm_i
if (!dev_priv->vbt.child_dev_num)
return;
- if (bdb->version < 155)
+ if (bdb_version < 155)
return;
for (port = PORT_A; port < I915_MAX_PORTS; port++)
- parse_ddi_port(dev_priv, port, bdb);
+ parse_ddi_port(dev_priv, port, bdb_version);
}
static void
@@ -1496,8 +1494,8 @@ void intel_bios_init(struct drm_i915_pri
parse_mipi_sequence(dev_priv, bdb);
/* Further processing on pre-parsed data */
- parse_sdvo_device_mapping(dev_priv, bdb);
- parse_ddi_ports(dev_priv, bdb);
+ parse_sdvo_device_mapping(dev_priv, bdb->version);
+ parse_ddi_ports(dev_priv, bdb->version);
out:
if (!vbt) {