linux-kernel - Re: [PATCH v4 14/23] drm/tilcdc: Provide ddc symlink in connector sysfs directory

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Message-ID: <f051455a-3559-8f8e-cc76-1a6388b102b5@collabora.com>
Date:   Wed, 24 Jul 2019 10:51:01 +0200
From:   Andrzej Pietrasiewicz <andrzej.p@...labora.com>
To:     Thomas Zimmermann <tzimmermann@...e.de>,
        Sam Ravnborg <sam@...nborg.org>
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        dri-devel@...ts.freedesktop.org,
        Douglas Anderson <dianders@...omium.org>,
        linux-tegra@...r.kernel.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>,
        David Airlie <airlied@...ux.ie>, Chen-Yu Tsai <wens@...e.org>,
        Kukjin Kim <kgene@...nel.org>,
        NXP Linux Team <linux-imx@....com>,
        Dave Airlie <airlied@...hat.com>,
        freedreno@...ts.freedesktop.org,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Jonas Karlman <jonas@...boo.se>, linux-arm-msm@...r.kernel.org,
        intel-gfx@...ts.freedesktop.org, Jyri Sarha <jsarha@...com>,
        Alexios Zavras <alexios.zavras@...el.com>,
        Mamta Shukla <mamtashukla555@...il.com>,
        linux-mediatek@...ts.infradead.org,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Sean Paul <sean@...rly.run>,
        linux-arm-kernel@...ts.infradead.org,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        amd-gfx@...ts.freedesktop.org,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Seung-Woo Kim <sw0312.kim@...sung.com>,
        linux-kernel@...r.kernel.org, Todor Tomov <todor.tomov@...aro.org>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Huang Rui <ray.huang@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Christian König <christian.koenig@....com>,
        Gerd Hoffmann <kraxel@...hat.com>
Subject: Re: [PATCH v4 14/23] drm/tilcdc: Provide ddc symlink in connector
 sysfs directory

Hi Thomas,

W dniu 24.07.2019 o 10:01, Thomas Zimmermann pisze:
> Hi
> 


> 
> I think this echoes my concern about the implicit order of operation. It
> seems too easy to get this wrong. If you don't want to add an additional
> interface for setting the ddc field, why not add a dedicated initializer
> function that sets the ddc field? Something like this.
> 
> int drm_connector_init_with_ddc(connector, funcs, ..., ddc)
> {
> 	ret = drm_connector_init(connector, funcs, ...);
> 	if (ret)
> 		return ret;
> 
> 	if (!ddc)
> 		return 0;
> 
> 	connector->ddc = ddc;
> 	/* set up sysfs */
> 
> 	return 0;
> }
> 

True. I will send a v5 soon.

Thanks,

Andrzej