On Fri, Jun 27, 2014 at 6:08 PM, Darren Etheridge <detheridge@xxxxxx> wrote: > Guido, > > > On 06/17/2014 09:17 AM, Guido Martínez wrote: >> >> The tilcdc driver could be compiled as a module, but was severely broken >> and could not be used as such. This patchset attempts to fix the issues >> preventing a proper load/unload of the module. >> >> Issues included dangling sysfs nodes, dangling devices, memory leaks and >> a double kfree. >> >> It now seems to be working ok. We have tested this by loading and >> unloading the driver repeteadly, with both panel and slave connectors >> and found no flaws. >> >> There is still one warning left on tilcdc_crtc_destroy, caused by >> destroying the connector while still in an ON status. We don't know why >> this happens or why it's an issue, so we did not fix it. >> > > Yes I see what you mean, it triggers the WARN_ON in tilcdc_crtc_destroy > because DRM_MODE_DPMS_ON is still set. This WARN_ON does make some sense > because DPMS_OFF would have the effect of turning off clocks and putting the > monitor to sleep which seems logical considering we have torn down the > display. Adding a tilcdc_crtc_dpms(DPMS_OFF) right before the WARN_ON > confirms this, but it seems strange that this hasn't happened automatically > (+ Russell doesn't need to do it in his Armada driver) - so I suspect there > is a better way. tbh, I'm not entirely sure offhand why drm_mode_config_cleanup() doesn't remove the fb's first (which should have the effect of shutting down any lit crtc/encoder/connector).. that would seem like the sensible way to shut down.. BR, -R > Otherwise I think this is a good and useful patch series. > > Darren > > >> The first 7 patches are bug fixes which and should probably be applied >> in the stable trees. The last two are clean-ups. >> >> >> Resending this since I got no replies. >> >> >> Guido Martínez (9): >> drm/i2c: tda998x: move drm_i2c_encoder_destroy call >> drm/tilcdc: panel: fix dangling sysfs connector node >> drm/tilcdc: slave: fix dangling sysfs connector node >> drm/tilcdc: tfp410: fix dangling sysfs connector node >> drm/tilcdc: panel: fix leak when unloading the module >> drm/tilcdc: fix release order on exit >> drm/tilcdc: fix double kfree >> drm/tilcdc: remove submodule destroy calls >> drm/tilcdc: replace late_initcall with module_init >> >> drivers/gpu/drm/i2c/tda998x_drv.c | 2 +- >> drivers/gpu/drm/tilcdc/Module.symvers | 0 >> drivers/gpu/drm/tilcdc/tilcdc_drv.c | 15 +++++-------- >> drivers/gpu/drm/tilcdc/tilcdc_drv.h | 1 - >> drivers/gpu/drm/tilcdc/tilcdc_panel.c | 39 >> +++++++++++++++++----------------- >> drivers/gpu/drm/tilcdc/tilcdc_slave.c | 27 +++++++++++++---------- >> drivers/gpu/drm/tilcdc/tilcdc_tfp410.c | 35 >> +++++++++++++++--------------- >> 7 files changed, 59 insertions(+), 60 deletions(-) >> create mode 100644 drivers/gpu/drm/tilcdc/Module.symvers >> > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/dri-devel -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
