On Tue, 10 Apr 2018, Yang <yang.a.shi@xxxxxxxxx> wrote: > From: Yang Shi <yang.a.shi@xxxxxxxxx> > > issue: snd_soc_skl meet "failed to add i915 component master (-19)" when > platform don't connect any display output. > > i915 do initialization before than skl_probe, but if there is no display > output connect, in function drm_dp_dpcd_access, there is a 32 retry for > aux i2c transactions. It will meet timeout and do usleep. Then skl_probe > function will be scheduled. It will call snd_hdac_i915_init, and it will > meet "failed to add i915 component master" error. > And whole snd_soc_skl initialization will be failed, audio can't work normally > anymore. > > So i915 driver need to move intel_audio_init at the beginning of > intel_modeset_init. This will make sure i915_audio_component_init process > before snd_hdac_i915_init call it. No. Please don't send updated versions of patches while the discussion is still ongoing in the previous thread. This is not the fix. BR, Jani. > > V2: edit comments more clearly > > Signed-off-by: Bo He <bo.he@xxxxxxxxx> > Signed-off-by: Yang Shi <yang.a.shi@xxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_drv.c | 2 -- > drivers/gpu/drm/i915/intel_display.c | 2 ++ > 2 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c > index 2f5209d..9d25d7e 100644 > --- a/drivers/gpu/drm/i915/i915_drv.c > +++ b/drivers/gpu/drm/i915/i915_drv.c > @@ -1243,8 +1243,6 @@ static void i915_driver_register(struct drm_i915_private *dev_priv) > if (IS_GEN5(dev_priv)) > intel_gpu_ips_init(dev_priv); > > - intel_audio_init(dev_priv); > - > /* > * Some ports require correctly set-up hpd registers for detection to > * work properly (leading to ghost connected connector status), e.g. VGA > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index f288bcc..a471c88 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -14468,6 +14468,8 @@ int intel_modeset_init(struct drm_device *dev) > > dev->mode_config.funcs = &intel_mode_funcs; > > + intel_audio_init(dev_priv); > + > init_llist_head(&dev_priv->atomic_helper.free_list); > INIT_WORK(&dev_priv->atomic_helper.free_work, > intel_atomic_helper_free_state_worker); -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
