Please, ignore this patch. I just noticed that I sent the wrong version. I resend the correct patch with the title: [PATCH V5] drm: Add definitions for link training repeaters Sorry for this mistake. On 09/09, Siqueira, Rodrigo wrote: > DP 1.3 specification introduces the Link Training-tunable PHY Repeater, > and DP 1.4* supplemented it with new features. In the 1.4a spec, it was > introduced some innovations to make handy to add support for systems > with Thunderbolt or other repeater devices. > > It is important to highlight that DP specification had some updates from > 1.3 through 1.4a. In particular, DP 1.4 defines Repeater_FEC_CAPABILITY > at the address 0xf0004, and DP 1.4a redefined the address 0xf0004 to > DP_MAX_LANE_COUNT_PHY_REPEATER. > > Changes since V4: > - Update commit message > - Fix misleading comments related to the spec version > Changes since V3: > - Replace spaces by tabs > Changes since V2: > - Drop the kernel-doc comment > - Reorder LTTPR according to register offset > Changes since V1: > - Adjusts registers names to be aligned with spec and the rest of the > file > - Update spec comment from 1.4 to 1.4a > > Cc: Abdoulaye Berthe <Abdoulaye.Berthe@xxxxxxx> > Cc: Harry Wentland <harry.wentland@xxxxxxx> > Cc: Leo Li <sunpeng.li@xxxxxxx> > Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> > Cc: Manasi Navare <manasi.d.navare@xxxxxxxxx> > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx> > Signed-off-by: Abdoulaye Berthe <Abdoulaye.Berthe@xxxxxxx> > Reviewed-by: Harry Wentland <Harry.Wentland@xxxxxxx> > --- > include/drm/drm_dp_helper.h | 26 ++++++++++++++++++++++++++ > 1 file changed, 26 insertions(+) > > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > index 7972b925a952..fddcd84601f8 100644 > --- a/include/drm/drm_dp_helper.h > +++ b/include/drm/drm_dp_helper.h > @@ -966,6 +966,32 @@ > #define DP_HDCP_2_2_REG_STREAM_TYPE_OFFSET 0x69494 > #define DP_HDCP_2_2_REG_DBG_OFFSET 0x69518 > > +/* Link Training (LT)-tunable PHY Repeaters */ > +#define DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV 0xf0000 /* 1.3 */ > +#define DP_MAX_LINK_RATE_PHY_REPEATER 0xf0001 /* 1.4a */ > +#define DP_PHY_REPEATER_CNT 0xf0002 /* 1.3 */ > +#define DP_PHY_REPEATER_MODE 0xf0003 /* 1.3 */ > +#define DP_MAX_LANE_COUNT_PHY_REPEATER 0xf0004 /* 1.4a */ > +#define DP_Repeater_FEC_CAPABILITY 0xf0004 /* 1.4 */ > +#define DP_PHY_REPEATER_EXTENDED_WAIT_TIMEOUT 0xf0005 /* 1.4a */ > +#define DP_TRAINING_PATTERN_SET_PHY_REPEATER1 0xf0010 /* 1.3 */ > +#define DP_TRAINING_LANE0_SET_PHY_REPEATER1 0xf0011 /* 1.3 */ > +#define DP_TRAINING_LANE1_SET_PHY_REPEATER1 0xf0012 /* 1.3 */ > +#define DP_TRAINING_LANE2_SET_PHY_REPEATER1 0xf0013 /* 1.3 */ > +#define DP_TRAINING_LANE3_SET_PHY_REPEATER1 0xf0014 /* 1.3 */ > +#define DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER1 0xf0020 /* 1.4a */ > +#define DP_TRANSMITTER_CAPABILITY_PHY_REPEATER1 0xf0021 /* 1.4a */ > +#define DP_LANE0_1_STATUS_PHY_REPEATER1 0xf0030 /* 1.3 */ > +#define DP_LANE2_3_STATUS_PHY_REPEATER1 0xf0031 /* 1.3 */ > +#define DP_LANE_ALIGN_STATUS_UPDATED_PHY_REPEATER1 0xf0032 /* 1.3 */ > +#define DP_ADJUST_REQUEST_LANE0_1_PHY_REPEATER1 0xf0033 /* 1.3 */ > +#define DP_ADJUST_REQUEST_LANE2_3_PHY_REPEATER1 0xf0034 /* 1.3 */ > +#define DP_SYMBOL_ERROR_COUNT_LANE0_PHY_REPEATER1 0xf0035 /* 1.3 */ > +#define DP_SYMBOL_ERROR_COUNT_LANE1_PHY_REPEATER1 0xf0037 /* 1.3 */ > +#define DP_SYMBOL_ERROR_COUNT_LANE2_PHY_REPEATER1 0xf0039 /* 1.3 */ > +#define DP_SYMBOL_ERROR_COUNT_LANE3_PHY_REPEATER1 0xf003b /* 1.3 */ > +#define DP_FEC_STATUS_PHY_REPEATER1 0xf0290 /* 1.4 */ > + > /* 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 -- Rodrigo Siqueira Software Engineer, Advanced Micro Devices (AMD) https://siqueira.tech
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