linux-kernel - Re: New sysfs interface for privacy screens

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Date:   Tue, 08 Oct 2019 09:13:51 +0300
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Mat King <mathewk@...gle.com>, Sean Paul <seanpaul@...omium.org>
Cc:     Daniel Thompson <daniel.thompson@...aro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>, rafael@...nel.org,
        Greg KH <gregkh@...uxfoundation.org>,
        Ross Zwisler <zwisler@...gle.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Rajat Jain <rajatja@...gle.com>,
        Lee Jones <lee.jones@...aro.org>,
        Ville Syrjälä <ville.syrjala@...ux.intel.com>,
        David Airlie <airlied@...hat.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Alexander Schremmer <alex@...xanderweb.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: New sysfs interface for privacy screens

On Mon, 07 Oct 2019, Mat King <mathewk@...gle.com> wrote:
> That makes sense; just to confirm can a property be added or removed
> after the connector is registered?

You need to create the property before registering the drm device. You
can attach/detach the property later, but I should think you know by the
time you're registering the connector whether it supports the privacy
screen or not.

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Graphics Center