linux-kernel - Re: [PATCH v5 02/24] drm: Add drm_connector

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Message-ID: <ea96186f-8d38-a698-f29e-049987ae0163@suse.de>
Date:   Wed, 24 Jul 2019 19:16:35 +0200
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Andrzej Pietrasiewicz <andrzej.p@...labora.com>,
        dri-devel@...ts.freedesktop.org
Cc:     Sam Ravnborg <sam@...nborg.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        David Airlie <airlied@...ux.ie>,
        Douglas Anderson <dianders@...omium.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        kernel@...labora.com, linux-samsung-soc@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        Vincent Abriou <vincent.abriou@...com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>, Kukjin Kim <kgene@...nel.org>,
        NXP Linux Team <linux-imx@....com>,
        Dave Airlie <airlied@...hat.com>,
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        Thomas Gleixner <tglx@...utronix.de>,
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        Allison Randal <allison@...utok.net>,
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        Enrico Weigelt <info@...ux.net>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
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        Tomi Valkeinen <tomi.valkeinen@...com>,
        Seung-Woo Kim <sw0312.kim@...sung.com>,
        linux-kernel@...r.kernel.org, Todor Tomov <todor.tomov@...aro.org>,
        Kyungmin Park <kyungmin.park@...sung.com>,
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        Shawn Guo <shawnguo@...nel.org>,
        Christian König <christian.koenig@....com>,
        Gerd Hoffmann <kraxel@...hat.com>
Subject: Re: [PATCH v5 02/24] drm: Add drm_connector_init() variant with ddc

Hi

Am 24.07.19 um 15:59 schrieb Andrzej Pietrasiewicz:
> Allow passing ddc adapter pointer to the init function. Even if
> drm_connector_init() sometime in the future decides to e.g. memset() all
> connector fields to zeros, the newly added function ensures that at its
> completion the ddc member of connector is correctly set.
> 
> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@...labora.com>
> ---
>  drivers/gpu/drm/drm_connector.c | 19 +++++++++++++++++++
>  include/drm/drm_connector.h     |  5 +++++
>  2 files changed, 24 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index 068d4b05f1be..06fbfc44fb48 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -296,6 +296,25 @@ int drm_connector_init(struct drm_device *dev,
>  }
>  EXPORT_SYMBOL(drm_connector_init);
>  
> +int drm_connector_init_with_ddc(struct drm_device *dev,
> +				struct drm_connector *connector,
> +				const struct drm_connector_funcs *funcs,
> +				int connector_type,
> +				struct i2c_adapter *ddc)
> +{
> +	int ret;
> +
> +	ret = drm_connector_init(dev, connector, funcs, connector_type);
> +	if (ret)
> +		return ret;
> +
> +	/* provide ddc symlink in sysfs */
> +	connector->ddc = ddc;
> +
> +	return ret;
> +}
> +EXPORT_SYMBOL(drm_connector_init_with_ddc);
> +

Thanks for including such a function.

Acked-by: Thomas Zimmermann <tzimmermann@...e.de>

>  /**
>   * drm_connector_attach_edid_property - attach edid property.
>   * @connector: the connector
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 33a6fff85fdb..937fda9c1374 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -1410,6 +1410,11 @@ int drm_connector_init(struct drm_device *dev,
>  		       struct drm_connector *connector,
>  		       const struct drm_connector_funcs *funcs,
>  		       int connector_type);
> +int drm_connector_init_with_ddc(struct drm_device *dev,
> +				struct drm_connector *connector,
> +				const struct drm_connector_funcs *funcs,
> +				int connector_type,
> +				struct i2c_adapter *ddc);
>  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);
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Linux GmbH, Maxfeldstrasse 5, 90409 Nuernberg, Germany
GF: Felix Imendörffer, Mary Higgins, Sri Rasiah
HRB 21284 (AG Nürnberg)



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