From 2d936f1cf78fe84c05642545abe052488e7adad4 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 28 Sep 2017 11:21:59 +0300
Subject: [PATCH] drm/i915/bios: don't initialize fields based on vbt version
Mime-version: 1.0
Content-type: text/plain; charset=UTF-8
Content-transfer-encoding: 8bit
Git-commit: 2d936f1cf78fe84c05642545abe052488e7adad4
Patch-mainline: v4.15-rc1
References: FATE#322643 bsc#1055900
In theory, these might clobber information for older VBT versions.
We might have to store the BDB version for later parsing, but currently
all code accessing these fields will only use them on newer platforms
with new enough BDB versions.
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/0232d9cb258e8f83c4180cdb8aad1459a312ec2a.1506586821.git.jani.nikula@intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/intel_bios.c | 13 -------------
1 file changed, 13 deletions(-)
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1347,19 +1347,6 @@ parse_device_mapping(struct drm_i915_pri
*/
memcpy(child_dev_ptr, child,
min_t(size_t, defs->child_dev_size, sizeof(*child)));
-
- /*
- * copied full block, now init values when they are not
- * available in current version
- */
- if (bdb->version < 196) {
- /* Set default values for bits added from v196 */
- child_dev_ptr->iboost = 0;
- child_dev_ptr->hpd_invert = 0;
- }
-
- if (bdb->version < 192)
- child_dev_ptr->lspcon = 0;
}
return;
}