[PATCH] drm: Add LT-tunable PHY repeater mode operations

[Siqueira, Rodrigo]

LT-tunable PHY Repeaters can operate in two different modes: transparent
(default) and non-transparent. The value 0x55 specifies the transparent
mode, and 0xaa represents the non-transparent; this commit adds these
two values as definitions.

Cc: Abdoulaye Berthe <Abdoulaye.Berthe at amd.com>
Cc: Harry Wentland <harry.wentland at amd.com>
Cc: Leo Li <sunpeng.li at amd.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Cc: Manasi Navare <manasi.d.navare at intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Abdoulaye Berthe <Abdoulaye.Berthe at amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
---
 include/drm/drm_dp_helper.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index bf62b43aaf2b..cfadeeef8492 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -1034,6 +1034,10 @@
 #define DP_SYMBOL_ERROR_COUNT_LANE3_PHY_REPEATER1	    0xf003b /* 1.3 */
 #define DP_FEC_STATUS_PHY_REPEATER1			    0xf0290 /* 1.4 */
 
+/* Repeater modes */
+#define DP_PHY_REPEATER_MODE_TRANSPARENT		    0x55    /* 1.3 */
+#define DP_PHY_REPEATER_MODE_NON_TRANSPARENT		    0xaa    /* 1.3 */
+
 /* DP HDCP message start offsets in DPCD address space */
 #define DP_HDCP_2_2_AKE_INIT_OFFSET		DP_HDCP_2_2_REG_RTX_OFFSET
 #define DP_HDCP_2_2_AKE_SEND_CERT_OFFSET	DP_HDCP_2_2_REG_CERT_RX_OFFSET
-- 
2.23.0
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