On Wed, 22 Nov 2017, Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx> wrote: > Forward Error Correction is supported on DP 1.4. > This patch adds corresponding DPCD register definitions. Needs to be posted on dri-devel. BR, Jani. > > 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 | 29 +++++++++++++++++++++++++++++ > 1 file changed, 29 insertions(+) > > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > index 9049ef1..b0eee16 100644 > --- a/include/drm/drm_dp_helper.h > +++ b/include/drm/drm_dp_helper.h > @@ -284,6 +284,35 @@ > # 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_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_EN_DETECTED (1 << 0) > +# define DP_FEC_DEC_DETECTED (1 << 1) > + > +#define DP_FEC_ERROR_COUNT_1 0x0281 > +# define DP_FEC_ERR_COUNT_7_0(err_count) (err_count << 0) > + > +#define DP_FEC_ERROR_COUNT_2 0x0282 > +# define DP_FEC_ERR_COUNT_14_8(err_count) (err_count << 0) > +# 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 */ -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
