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From:   =?UTF-8?q?S=C3=A9bastien=20Szymanski?= 
        <sebastien.szymanski@armadeus.com>
To:     Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc:     Marek Vasut <marex@denx.de>, Stefan Agner <stefan@agner.ch>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        =?UTF-8?q?S=C3=A9bastien=20Szymanski?= 
        <sebastien.szymanski@armadeus.com>
Subject: [PATCH 2/3] drm: mxsfb: add alpha plane support on i.MX6UL/i.MX6ULL
Date:   Fri, 18 Dec 2020 15:10:34 +0100
Message-Id: <20201218141035.28038-2-sebastien.szymanski@armadeus.com>
In-Reply-To: <20201218141035.28038-1-sebastien.szymanski@armadeus.com>
References: <20201218141035.28038-1-sebastien.szymanski@armadeus.com>
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The eLCDIF controller on i.MX6UL/i.MX6ULL supports the alpha plane too.
Enable it on these SoCs.

Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
---
While testing, I have noticed that the alpha plane works but
sometimes the framebuffer is shiftted to the right.
I tested with the following modetest command:

modetest -M mxsfb-drm -s 37@35:800x480 -P 33@35:800x480@AR24 -F smpte,plain

 drivers/gpu/drm/mxsfb/mxsfb_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
index 6faf17b6408d..95c35333c2d1 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -306,6 +306,7 @@ static const struct drm_driver mxsfb_driver = {
 static const struct of_device_id mxsfb_dt_ids[] = {
 	{ .compatible = "fsl,imx23-lcdif", .data = &mxsfb_devdata[MXSFB_V3], },
 	{ .compatible = "fsl,imx28-lcdif", .data = &mxsfb_devdata[MXSFB_V4], },
+	{ .compatible = "fsl,imx6ul-lcdif", .data = &mxsfb_devdata[MXSFB_V6], },
 	{ .compatible = "fsl,imx6sx-lcdif", .data = &mxsfb_devdata[MXSFB_V6], },
 	{ /* sentinel */ }
 };
-- 
2.26.2