From 481cdde1b0ed9f83854f1deb3aa20cc733d481cb Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Thu, 18 Jan 2018 17:33:10 +0200 Subject: [PATCH] drm/i915/bios: add DP max link rate to VBT child device struct 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. v2: Fix bit order (David) Cc: Rodrigo Vivi Signed-off-by: Jani Nikula Reviewed-by: Rodrigo Vivi Signed-off-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20180118153310.32437-1-jani.nikula@intel.com (cherry picked from commit c4fb60b9aba9f939d3f8575df23fd8d5958ec6ed) Signed-off-by: Rodrigo Vivi --- 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 4c42cc4b193b8..f7f771749e480 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -1329,11 +1329,13 @@ 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 e3d7745a91518..98dff6058d3c9 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:2; /* 216 CNL+ */ + u8 dp_max_link_rate_reserved:6; /* 216 */ } __packed; struct bdb_general_definitions { -- 2.39.5