On Mon, Sep 25, 2017 at 11:23:26AM +0300, Jani Nikula wrote: > On Sat, 23 Sep 2017, vathsala nagaraju <vathsala.nagaraju@xxxxxxxxx> wrote: > > Add defines for dpcd register 2009 (synchronization latency > > in sink). > > > > Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> > > CC: Puthikorn Voravootivat <puthik@xxxxxxxxxxxx> > > Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> > > Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@xxxxxxxxx> > > --- > > include/drm/drm_dp_helper.h | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > > index 11c39f1..846004e6 100644 > > --- a/include/drm/drm_dp_helper.h > > +++ b/include/drm/drm_dp_helper.h > > @@ -735,6 +735,9 @@ > > # define DP_PSR_SINK_INTERNAL_ERROR 7 > > # define DP_PSR_SINK_STATE_MASK 0x07 > > > > +#define DP_SINK_SYNCHRONIZATION_LATENCY 0x2009 > > +# define DP_MAX_RESYNC_FRAME_CNT_MASK 0xf > > For the DP spec, please don't invent the names, use the ones from the > spec. At most drop excess stuff from the end. > > #define DP_SYNCHRONIZATION_LATENCY_IN_SINK > # define DP_MAX_RESYNC_FRAME_COUNT_SHIFT > # define DP_MAX_RESYNC_FRAME_COUNT_MASK > > And while at it, please add the full register contents. Please also annotate in which version of the spec we can find this, e.g. #define DP_SYNCHRONIZATION_LATENCY_IN_SINK /* eDP 1.4b */ # define DP_MAX_RESYNC_FRAME_COUNT_SHIFT # define DP_MAX_RESYNC_FRAME_COUNT_MASK Bringing this up since previous versions of this confused Rodrigo -Daniel > > BR, > Jani. > > > + > > #define DP_RECEIVER_ALPM_STATUS 0x200b /* eDP 1.4 */ > > # define DP_ALPM_LOCK_TIMEOUT_ERROR (1 << 0) > > -- > Jani Nikula, Intel Open Source Technology Center > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
