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drm/i915: update new TMDS clock setting defined by VBT

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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
This commit is contained in:
Lee Shawn C 2022-03-03 16:38:02 +08:00 committed by Ville Syrjälä
parent 09550c7fcd
commit 5708fe0db0
2 changed files with 9 additions and 0 deletions
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6
drivers/gpu/drm/i915/display/intel_bios.c
View File

@ -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:

3
drivers/gpu/drm/i915/display/intel_vbt_defs.h
View File

@ -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