Re: [PATCH] drm/i915: Enable hotplug polling after registering the outputs

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Op 27-11-17 om 10:45 schreef Chris Wilson:
> Previously we would enable hotplug polling on the outputs immediately
> upon construction. This would allow a very early hotplug event to
> trigger before we had finishing setting up the driver to handle it.
> Instead, move the output polling to the last step of registration, after
> we have set up all handlers, including the fbdev configuration.
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
> Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>
> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/i915_drv.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index 0793a27e2b95..c178cbfdb4c2 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -693,8 +693,6 @@ static int i915_load_modeset_init(struct drm_device *dev)
>  	/* Only enable hotplug handling once the fbdev is fully set up. */
>  	intel_hpd_init(dev_priv);
>  
> -	drm_kms_helper_poll_init(dev);
> -
>  	return 0;
>  
>  cleanup_gem:
> @@ -1255,6 +1253,9 @@ static void i915_driver_register(struct drm_i915_private *dev_priv)
>  	 * cannot run before the connectors are registered.
>  	 */
>  	intel_fbdev_initial_config_async(dev);
> +
> +	if (INTEL_INFO(dev_priv)->num_pipes)
> +		drm_kms_helper_poll_init(dev);
>  }
>  
>  /**

This commit would look better with relevent kernel output pasted in. :)

Could this be done before fbdev initial config? Since it's run async, this makes it more clear it is run first.

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