<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_extra"><br><div class="gmail_quote">On 18 January 2016 at 22:45, Carlos Palminha <span dir="ltr"><<a href="mailto:CARLOS.PALMINHA@synopsys.com" target="_blank">CARLOS.PALMINHA@synopsys.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">I'm also getting a message from DRM saying can't find any crtc or sizes...i'm really missing something here.<br> :(<br> <br> -- log --<br> <span class="">[drm] Initialized drm 1.1.0 20060810<br> drm-arcpgu e0017000.pgu: No connectors reported connected with modes<br> [drm] Cannot find any crtc or sizes - going 1024x768<br> Console: switching to colour frame buffer device 128x48<br> drm-arcpgu e0017000.pgu: fb0: frame buffer device<br> [drm] Initialized drm-arcpgu 1.0.0 20151127 on minor 0<br> </span>-- log ---<br> <br> Any help?<br> <br> Regards,<br> C.Palminha<br> <div class=""><div class="h5"><br> <br> On 18-01-2016 14:32, Carlos Palminha wrote:<br> > Hi Xinliang,<br> ><br> > My get_modes seems to be implemented as the rcar driver...<br> > Probably still missing some init step?<br> ><br> > Regards,<br> > C.Palminha<br> ><br> ><br> > static int arcpgu_drm_connector_get_modes(struct drm_connector *connector)<br> > {<br> > struct drm_encoder_slave *slave;<br> > const struct drm_encoder_slave_funcs *sfuncs;<br> > struct arcpgu_drm_connector * con =<br> > container_of(connector, struct arcpgu_drm_connector, connector);<br> ><br> > slave = con->encoder_slave;<br> > if(slave == NULL) {<br> > dev_err(connector->dev->dev,<br> > "connector_get_modes: cannot find slave encoder for connector\n");<br> > return 0;<br> > }<br> ><br> > sfuncs = slave->slave_funcs;<br> > if(sfuncs->get_modes == NULL){<br> > return 0;<br> > }<br> ><br> > return sfuncs-><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"></div>get_modes(&slave->base,connector);<br> > }<br> ><br></div></div></blockquote><div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">so, this will call <span style="font-size:12.8px">adv7511 driver's </span><div class="gmail_default" style="color:rgb(80,0,80);display:inline"></div><span style="font-family:arial,sans-serif;color:rgb(80,0,80)">get_modes call back.</span></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:arial,sans-serif;color:rgb(80,0,80)">I wonder if the system boot up, it can get modes or not.</span></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:arial,sans-serif;color:rgb(80,0,80)">You can test it with the modetest. i.e. $ modetest -M DRM_DRIVER_NAME -c</span></div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div class=""><div class="h5"> > On 31-12-2015 02:19, Xinliang Liu wrote:<br> >><br> >><br> >> On 31 December 2015 at 02:46, Carlos Palminha<br> >> <<a href="mailto:CARLOS.PALMINHA@synopsys.com">CARLOS.PALMINHA@synopsys.com</a> <mailto:<a href="mailto:CARLOS.PALMINHA@synopsys.com">CARLOS.PALMINHA@synopsys.com</a>>> wrote:<br> >><br> >> Hi guys,<br> >><br> >> I'm writing a DRM driver for a framebuffer embedded hardware that<br> >> uses an i2c encoder (adv7511), following the basic steps suggested<br> >> by Laurent in "anatomy of an embedded KMS driver":<br> >> <a href="https://www.youtube.com/watch?v=Ja8fM7rTae4" rel="noreferrer" target="_blank">https://www.youtube.com/watch?v=Ja8fM7rTae4</a><br> >><br> >> After initiliazing all kms, crtc, encoder, i2c, connector functions<br> >> and structures i'm calling drm_fbdev_cma_init to create a fbdev.<br> >><br> >> When booting i'm getting an error message saying "No connectors<br> >> reported connected with modes", but the driver init is ok and i can<br> >> find the /dev/dri/* and /dev/fb0 devices.<br> >><br> >> Any clue what i might be missing during the driver load?<br> >><br> >><br> >> I think you should check on the 'get_modes' call back of adv7511<br> >> driver. (Or, if possible show us the code.)<br> >><br> >> Best,<br> >> -xinliang<br> >><br> >><br> >> Thanks...<br> >><br> >> Regards,<br> >> C.Palminha<br> >><br> >> --- boot log snippet ---<br> >> [drm] Initialized drm 1.1.0 20060810<br> >> drm-arcpgu e0017000.pgu: No connectors reported connected with modes<br> >> [drm] Cannot find any crtc or sizes - going 1024x768<br> >> Console: switching to colour frame buffer device 128x48<br> >> drm-arcpgu e0017000.pgu: fb0: frame buffer device<br> >> [drm] Initialized drm-arcpgu 1.0.0 20151127 on minor 0<br> >> --- boot log snippet ---<br> >> --<br> >> To unsubscribe from this list: send the line "unsubscribe<br> >> linux-fbdev" in<br> >> the body of a message to <a href="mailto:majordomo@vger.kernel.org">majordomo@vger.kernel.org</a><br> >> <mailto:<a href="mailto:majordomo@vger.kernel.org">majordomo@vger.kernel.org</a>><br> >> More majordomo info at <a href="http://vger.kernel.org/majordomo-info.html" rel="noreferrer" target="_blank">http://vger.kernel.org/majordomo-info.html</a><br> >><br> >><br> </div></div></blockquote></div><br></div></div>