From 79decf6635bd648d652c0884783343273544b91e Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Thu, 21 Mar 2024 18:18:05 +0200
Subject: [PATCH] drm/i915/bios: Define the (obsolete) backlight i2c VBT stuff
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The VBT backlight entries include various fields for i2c
controlled backlights. These have been obsoleted at some
unknown point in time, but let's define them anyway so that
we have a full picture of what has been in there.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240321161806.31714-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/display/intel_vbt_defs.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index 5da8ae407dfda..bcd1b239eb65d 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -881,11 +881,12 @@ struct bdb_lvds_lfp_data_tail {
struct lfp_backlight_data_entry {
u8 type:2;
u8 active_low_pwm:1;
- u8 obsolete1:5;
+ u8 i2c_pin:3; /* obsolete since ? */
+ u8 i2c_speed:2; /* obsolete since ? */
u16 pwm_freq_hz;
u8 min_brightness; /* ???-233 */
- u8 obsolete2;
- u8 obsolete3;
+ u8 i2c_address; /* obsolete since ? */
+ u8 i2c_command; /* obsolete since ? */
} __packed;
struct lfp_backlight_control_method {
--
2.30.2