Re: [PATCH v2 1/2] drm: add drm_connector_attach_edid_property()

[Daniel Vetter <daniel@ffwll.ch>]

On Tue, Oct 02, 2018 at 08:19:04AM +0200, Gerd Hoffmann wrote:
> drm_connector_init doesn't attach the edid property for some connector
> types, drm_connector_attach_edid_property() can be used to enable the
> edid property in these cases.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  include/drm/drm_connector.h     |  1 +
>  drivers/gpu/drm/drm_connector.c | 20 ++++++++++++++++++++
>  2 files changed, 21 insertions(+)
> 
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 97ea41dc67..4d58966b54 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -1083,6 +1083,7 @@ int drm_connector_init(struct drm_device *dev,
>  		       struct drm_connector *connector,
>  		       const struct drm_connector_funcs *funcs,
>  		       int connector_type);
> +void drm_connector_attach_edid_property(struct drm_connector *connector);
>  int drm_connector_register(struct drm_connector *connector);
>  void drm_connector_unregister(struct drm_connector *connector);
>  int drm_connector_attach_encoder(struct drm_connector *connector,
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index 6011d769d5..6c6ef4f9b9 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -291,6 +291,26 @@ int drm_connector_init(struct drm_device *dev,
>  EXPORT_SYMBOL(drm_connector_init);
>  
>  /**
> + * drm_connector_attach_edid_property - attach edid property.
> + * @dev: DRM device
> + * @connector: the connector
> + *
> + * Some connector types like DRM_MODE_CONNECTOR_VIRTUAL do not get a
> + * edid property attached by default.  This function can be used to
> + * explicitly enable the edid property in these cases.
> + *

Surplus line. I'd also use this in the connector setup function, so it's a
notch easier to discover. With that:

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

> + */
> +void drm_connector_attach_edid_property(struct drm_connector *connector)
> +{
> +	struct drm_mode_config *config = &connector->dev->mode_config;
> +
> +	drm_object_attach_property(&connector->base,
> +				   config->edid_property,
> +				   0);
> +}
> +EXPORT_SYMBOL(drm_connector_attach_edid_property);
> +
> +/**
>   * drm_connector_attach_encoder - attach a connector to an encoder
>   * @connector: connector to attach
>   * @encoder: encoder to attach @connector to
> -- 
> 2.9.3
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch