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Message-ID: <d39209a3664179f895a7dfabbd02d27a6adb9895.camel@pengutronix.de>
Subject: Re: [PATCH] drm/mxsfb: Make supported modifiers explicit
From:   Lucas Stach <l.stach@pengutronix.de>
To:     Guido =?ISO-8859-1?Q?G=FCnther?= <agx@sigxcpu.org>,
        Marek Vasut <marex@denx.de>, Stefan Agner <stefan@agner.ch>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        dri-devel@lists.freedesktop.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Date:   Mon, 23 Mar 2020 16:51:05 +0100
In-Reply-To: <26877532e272c12a74c33188e2a72abafc9a2e1c.1584973664.git.agx@sigxcpu.org>
References: <26877532e272c12a74c33188e2a72abafc9a2e1c.1584973664.git.agx@sigxcpu.org>
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Am Montag, den 23.03.2020, 15:52 +0100 schrieb Guido Günther:
> In contrast to other display controllers on imx like DCSS and ipuv3
> lcdif/mxsfb does not support detiling e.g. vivante tiled layouts.
> Since mesa might assume otherwise make it explicit that only
> DRM_FORMAT_MOD_LINEAR is supported.
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>

> ---
>  drivers/gpu/drm/mxsfb/mxsfb_drv.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> index 762379530928..fc71e7a7a02e 100644
> --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> @@ -73,6 +73,11 @@ static const uint32_t mxsfb_formats[] = {
>  	DRM_FORMAT_RGB565
>  };
>  
> +static const uint64_t mxsfb_modifiers[] = {
> +	DRM_FORMAT_MOD_LINEAR,
> +	DRM_FORMAT_MOD_INVALID
> +};
> +
>  static struct mxsfb_drm_private *
>  drm_pipe_to_mxsfb_drm_private(struct drm_simple_display_pipe *pipe)
>  {
> @@ -334,8 +339,8 @@ static int mxsfb_load(struct drm_device *drm, unsigned long flags)
>  	}
>  
>  	ret = drm_simple_display_pipe_init(drm, &mxsfb->pipe, &mxsfb_funcs,
> -			mxsfb_formats, ARRAY_SIZE(mxsfb_formats), NULL,
> -			mxsfb->connector);
> +			mxsfb_formats, ARRAY_SIZE(mxsfb_formats),
> +			mxsfb_modifiers, mxsfb->connector);
>  	if (ret < 0) {
>  		dev_err(drm->dev, "Cannot setup simple display pipe\n");
>  		goto err_vblank;