linux-kernel - Re: [PATCH v6 3/4] drm/bridge: Drop CONFIG_OF conditionals around of

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Message-ID: <20230831092949.GE2698@pendragon.ideasonboard.com>
Date:   Thu, 31 Aug 2023 12:29:49 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Biju Das <biju.das.jz@...renesas.com>
Cc:     Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Douglas Anderson <dianders@...omium.org>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Zhu Wang <wangzhu9@...wei.com>,
        Adrián Larumbe <adrian.larumbe@...labora.com>,
        Thierry Reding <treding@...dia.com>,
        Ville Syrjälä <ville.syrjala@...ux.intel.com>,
        Guillaume BRUN <the.cheaterman@...il.com>,
        Rob Herring <robh@...nel.org>, Sandor Yu <Sandor.yu@....com>,
        Sam Ravnborg <sam@...nborg.org>, Ondrej Jirman <megi@....cz>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH v6 3/4] drm/bridge: Drop CONFIG_OF conditionals around
 of_node pointers

Hi Biju,

Thank you for the patch.

On Thu, Aug 31, 2023 at 09:09:37AM +0100, Biju Das wrote:
> Having conditional around the of_node pointers turns out to make driver
> code use ugly #ifdef and #if blocks. So drop the conditionals.
> 
> Suggested-by: Douglas Anderson <dianders@...omium.org>
> Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
> Reviewed-by: Douglas Anderson <dianders@...omium.org>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
> v5->v6:
>  * Added Rb tag from Douglas Anderson.
>  * Dropped conditionals from remaining drm/bridge drivers.
> v5:
>  * Split from patch#2
> ---
>  drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c | 2 --
>  drivers/gpu/drm/bridge/panel.c                     | 2 --
>  drivers/gpu/drm/bridge/synopsys/dw-hdmi.c          | 2 --
>  drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c      | 2 --
>  4 files changed, 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
> index 6169db73d2fe..ad8241758896 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
> +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
> @@ -1231,9 +1231,7 @@ static int anx78xx_i2c_probe(struct i2c_client *client)
>  
>  	mutex_init(&anx78xx->lock);
>  
> -#if IS_ENABLED(CONFIG_OF)
>  	anx78xx->bridge.of_node = client->dev.of_node;
> -#endif
>  
>  	anx78xx->client = client;
>  	i2c_set_clientdata(client, anx78xx);
> diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c
> index 9316384b4474..7f41525f7a6e 100644
> --- a/drivers/gpu/drm/bridge/panel.c
> +++ b/drivers/gpu/drm/bridge/panel.c
> @@ -302,9 +302,7 @@ struct drm_bridge *drm_panel_bridge_add_typed(struct drm_panel *panel,
>  	panel_bridge->panel = panel;
>  
>  	panel_bridge->bridge.funcs = &panel_bridge_bridge_funcs;
> -#ifdef CONFIG_OF
>  	panel_bridge->bridge.of_node = panel->dev->of_node;
> -#endif
>  	panel_bridge->bridge.ops = DRM_BRIDGE_OP_MODES;
>  	panel_bridge->bridge.type = connector_type;
>  
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index 6c1d79474505..52d91a0df85e 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -3541,9 +3541,7 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
>  			 | DRM_BRIDGE_OP_HPD;
>  	hdmi->bridge.interlace_allowed = true;
>  	hdmi->bridge.ddc = hdmi->ddc;
> -#ifdef CONFIG_OF
>  	hdmi->bridge.of_node = pdev->dev.of_node;
> -#endif
>  
>  	memset(&pdevinfo, 0, sizeof(pdevinfo));
>  	pdevinfo.parent = dev;
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
> index 04d4a1a10698..a8dd2a2e7c7b 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
> @@ -1182,9 +1182,7 @@ __dw_mipi_dsi_probe(struct platform_device *pdev,
>  
>  	dsi->bridge.driver_private = dsi;
>  	dsi->bridge.funcs = &dw_mipi_dsi_bridge_funcs;
> -#ifdef CONFIG_OF
>  	dsi->bridge.of_node = pdev->dev.of_node;
> -#endif
>  
>  	return dsi;
>  }

-- 
Regards,

Laurent Pinchart