linux-kernel - Re: [PATCH 1/4] drm/bridge: ti-sn65dsi86: Don't compile GPIO bits if not CONFIG_OF

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Date:   Sat, 20 Jun 2020 22:21:21 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Rob Clark <robdclark@...omium.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Sandeep Panda <spanda@...eaurora.org>,
        kernel test robot <lkp@...el.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Jonas Karlman <jonas@...boo.se>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        "open list:DRM PANEL DRIVERS" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] drm/bridge: ti-sn65dsi86: Don't compile GPIO bits if
 not CONFIG_OF_GPIO

On Mon, Jun 8, 2020 at 7:48 PM Douglas Anderson <dianders@...omium.org> wrote:

> The kernel test robot noted that if "OF" is defined (which is needed
> to select DRM_TI_SN65DSI86 at all) but not OF_GPIO that we'd get
> compile failures because some of the members that we access in "struct
> gpio_chip" are only defined "#if defined(CONFIG_OF_GPIO)".
>
> All the GPIO bits in the driver are all nicely separated out.  We'll
> guard them with the same "#if defined" that the header has and add a
> little stub function if OF_GPIO is not defined.
>
> Fixes: 27ed2b3f22ed ("drm/bridge: ti-sn65dsi86: Export bridge GPIOs to Linux")
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: Douglas Anderson <dianders@...omium.org>

Fair enough,
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij