Re: [PATCH 12/24] drm/omap: Init fbdev emulation only when we have displays

From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>,
	Jyri Sarha <jsarha@ti.com>,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 12/24] drm/omap: Init fbdev emulation only when we have displays
Date: Tue, 27 Feb 2018 15:36:03 +0200	[thread overview]
Message-ID: <13229168.y4bsohjI6L@avalon> (raw)
In-Reply-To: <1518428694-18018-13-git-send-email-tomi.valkeinen@ti.com>

Hi Tomi,

Thank you for the patch.

On Monday, 12 February 2018 11:44:42 EET Tomi Valkeinen wrote:
> From: Peter Ujfalusi <peter.ujfalusi@ti.com>
> 
> Do not try to init the fbdev if either num_crtcs or num_connectors is 0.
> In this case we do not have display so the fbdev init would fail anyways.
> 
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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

I'd move this earlier in the series with the other fbdev-related patches.

> ---
>  drivers/gpu/drm/omapdrm/omap_fbdev.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c
> b/drivers/gpu/drm/omapdrm/omap_fbdev.c index 30ce3d562414..509283af5b0c
> 100644
> --- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
> +++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
> @@ -249,6 +249,9 @@ void omap_fbdev_init(struct drm_device *dev)
>  	struct drm_fb_helper *helper;
>  	int ret = 0;
> 
> +	if (!priv->num_crtcs || !priv->num_connectors)
> +		return;
> +
>  	fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
>  	if (!fbdev)
>  		goto fail;

-- 
Regards,

Laurent Pinchart

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