On 12 January 2016 at 08:59, Shobhit Kumar <shobhit.kumar@xxxxxxxxx> wrote: > Not sending yet to pwm mailing list as this is all untested. C.B. please > test the patches and see if they work at all for you. For testing Please > enable - > > CONFIG_PWM_LPSS=y > CONFIG_PWM_LPSS_PLATFORM=y I applied these patches to 4.4-rc8. So far no progress: [ 14.251512] [drm:pwm_setup_backlight [i915]] *ERROR* Failed to own the pwm chip: pm_backlight I dug in a little and found that dev_priv->vbt.dsi.config->pwm_blc == 0, I wonder if some of these Dell Venue's have different hardware? This is the model I have: [ 16.370481] Hardware name: Dell Inc. Venue 8 Pro 5830/09RP78, BIOS A13 11/27/2015 Let me know what I can provide to help CB _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx