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. 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); -- 2.7.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
