Update VBT defs to reflect revision 216. While at it, default the
expected child device struct size to sizeof the size rather than a
hardcoded value.
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_bios.c | 8 +++++---
drivers/gpu/drm/i915/intel_vbt_defs.h | 2 ++
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 51108ffc28d1..b820d595ebc8 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1323,11 +1323,13 @@ parse_general_definitions(struct drm_i915_private *dev_priv,
expected_size = LEGACY_CHILD_DEVICE_CONFIG_SIZE;
} else if (bdb->version == 195) {
expected_size = 37;
- } else if (bdb->version <= 197) {
+ } else if (bdb->version <= 215) {
expected_size = 38;
+ } else if (bdb->version <= 216) {
+ expected_size = 39;
} else {
- expected_size = 38;
- BUILD_BUG_ON(sizeof(*child) < 38);
+ expected_size = sizeof(*child);
+ BUILD_BUG_ON(sizeof(*child) < 39);
DRM_DEBUG_DRIVER("Expected child device config size for VBT version %u not known; assuming %u\n",
bdb->version, expected_size);
}
diff --git a/drivers/gpu/drm/i915/intel_vbt_defs.h b/drivers/gpu/drm/i915/intel_vbt_defs.h
index e3d7745a9151..bbb173e116b3 100644
--- a/drivers/gpu/drm/i915/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/intel_vbt_defs.h
@@ -412,6 +412,8 @@ struct child_device_config {
u16 dp_gpio_pin_num; /* 195 */
u8 dp_iboost_level:4; /* 196 */
u8 hdmi_iboost_level:4; /* 196 */
+ u8 dp_max_link_rate_reserved:6; /* 216 */
+ u8 dp_max_link_rate:2; /* 216 CNL+ */
} __packed;
struct bdb_general_definitions {
--
2.11.0
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