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

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

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 40b5e7e..a559a19 100644 (file)
--- 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 b9397d9..e050899 100644 (file)
--- 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