Forward Error Correction is supported on DP 1.4. This patch adds corresponding DPCD register definitions. v2: Add dri-devel mailing list to the CC list(Jani) v3: Change names, add missing masks (Manasi) Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> Cc: Manasi Navare <manasi.d.navare@xxxxxxxxx> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx> --- include/drm/drm_dp_helper.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index da58a42..4f75034 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -284,6 +284,36 @@ # define DP_DSC_BITS_PER_PIXEL_1_2 0x3 # define DP_DSC_BITS_PER_PIXEL_1 0x4 +/* DP Forward error Correction Registers */ +#define DP_FEC_CAPABILITY 0x090 +# define DP_FEC_CAPABLE (1 << 0) +# define DP_FEC_UNCORR_BLK_ERROR_COUNT_CAP (1 << 1) +# define DP_FEC_CORR_BLK_ERROR_COUNT_CAP (1 << 2) +# define DP_FEC_BIT_ERROR_COUNT_CAP (1 << 3) + +#define DP_FEC_CONFIGURATION 0x120 +# define DP_FEC_READY (1 << 0) +# define DP_FEC_ERR_COUNT_DIS (0 << 1) +# define DP_FEC_UNCORR_BLK_ERROR_COUNT (1 << 1) +# define DP_FEC_CORR_BLK_ERROR_COUNT (2 << 1) +# define DP_FEC_BIT_ERROR_COUNT (3 << 1) +# define DP_FEC_ERR_COUNT_SEL_MASK (0xFF) +# define DP_FEC_LANE_0_SELECT (0 << 4) +# define DP_FEC_LANE_1_SELECT (1 << 4) +# define DP_FEC_LANE_2_SELECT (2 << 4) +# define DP_FEC_LANE_3_SELECT (3 << 4) + +#define DP_FEC_STATUS 0x280 +# define DP_FEC_DECODE_EN_DETECTED (1 << 0) +# define DP_FEC_DECODE_DIS_DETECTED (1 << 1) + +#define DP_FEC_ERROR_COUNT_LSB 0x0281 + +#define DP_FEC_ERROR_COUNT_MSB 0x0282 +# define DP_FEC_ERROR_COUNT_MASK 0x7F +# define DP_FEC_ERR_COUNT_SHIFT 8 +# define DP_FEC_ERR_COUNT_VALID (1 << 7) + #define DP_PSR_SUPPORT 0x070 /* XXX 1.2? */ # define DP_PSR_IS_SUPPORTED 1 # define DP_PSR2_IS_SUPPORTED 2 /* eDP 1.4 */ -- 2.7.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
