From d7fb2dd6af1147ddc956942051a971e22b28c372 Mon Sep 17 00:00:00 2001
From: Lee Shawn C <shawn.c.lee@intel.com>
Date: Thu, 3 Mar 2022 16:38:02 +0800
Subject: drm/i915: update new TMDS clock setting defined by VBT
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Git-commit: 5708fe0db0edfaaf6ef83106a4404bc102afe129
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
VBT 249 update to support more TMDS clock rate 3.00G, 3.40G
and 5.94G. Refer to this new definition to configure max
TMDS clock rate for HDMI driver.
BSpec: 20124
v2: new subject
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Lee Shawn C <shawn.c.lee@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220303083802.5071-1-shawn.c.lee@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_bios.c | 6 ++++++
drivers/gpu/drm/i915/display/intel_vbt_defs.h | 3 +++
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 40b5e7ed12c2..a559a1914588 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -1955,6 +1955,12 @@ static int _intel_bios_max_tmds_clock(const struct intel_bios_encoder_data *devd
fallthrough;
case HDMI_MAX_DATA_RATE_PLATFORM:
return 0;
+ case HDMI_MAX_DATA_RATE_594:
+ return 594000;
+ case HDMI_MAX_DATA_RATE_340:
+ return 340000;
+ case HDMI_MAX_DATA_RATE_300:
+ return 300000;
case HDMI_MAX_DATA_RATE_297:
return 297000;
case HDMI_MAX_DATA_RATE_165:
diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index b9397d9363c5..e0508990df48 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -289,6 +289,9 @@ struct bdb_general_features {
#define HDMI_MAX_DATA_RATE_PLATFORM 0 /* 204 */
#define HDMI_MAX_DATA_RATE_297 1 /* 204 */
#define HDMI_MAX_DATA_RATE_165 2 /* 204 */
+#define HDMI_MAX_DATA_RATE_594 3 /* 249 */
+#define HDMI_MAX_DATA_RATE_340 4 /* 249 */
+#define HDMI_MAX_DATA_RATE_300 5 /* 249 */
#define LEGACY_CHILD_DEVICE_CONFIG_SIZE 33
--
2.38.1