On Fri, Feb 05, 2021 at 11:09:36AM -0800, Khaled Almahallawy wrote: > Link rate and lane count information are more easier and faster to check in > i915_display_info > than checking kernel logs for people not familiar with i915 in the following > scenarios: > * Debugging DP tunnel bandwidth usage in Thunderbolt driver. > * In USB4 certification, it is a requirement to know which link rate used by > monitor to prove that DP tunnel handle up to HBR3 > * In PHY Compliance, when the connector propes are not mounted correctly, > some display lanes will not show up in the DP Oscilloscope and will fail > CTS. > Just give the tester an easy way to identify where the problem is. > > v2(Ville): Uniform style for '=' and use 'port clock' instead of 'link rate'
Yes this is really good, having this as part of display_info. I am just wondering if this makes sense to be part of connector_info or crtc_info What would be more readable and intuitive. But again since its part of crtc_state, may be easier to be part of crtc_info. Manasi > > Cc: Imre Deak <[email protected]> > Cc: Ville Syrjälä <[email protected]> > CC: José Roberto de Souza <[email protected]> > Signed-off-by: Khaled Almahallawy <[email protected]> > --- > drivers/gpu/drm/i915/display/intel_display_debugfs.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c > b/drivers/gpu/drm/i915/display/intel_display_debugfs.c > index d62b18d5ecd8..cb088a0a26f3 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c > +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c > @@ -990,9 +990,10 @@ static void intel_crtc_info(struct seq_file *m, struct > intel_crtc *crtc) > yesno(crtc_state->hw.active), > DRM_MODE_ARG(&crtc_state->hw.adjusted_mode)); > > - seq_printf(m, "\tpipe src size=%dx%d, dither=%s, bpp=%d\n", > + seq_printf(m, "\tpipe src size=%dx%d, dither=%s, bpp=%d, port > clock=%d, lane count=%d\n", > crtc_state->pipe_src_w, crtc_state->pipe_src_h, > - yesno(crtc_state->dither), crtc_state->pipe_bpp); > + yesno(crtc_state->dither), crtc_state->pipe_bpp, > + crtc_state->port_clock, crtc_state->lane_count); > > intel_scaler_info(m, crtc); > } > -- > 2.25.1 > > _______________________________________________ > Intel-gfx mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
