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From:   Alexander Stein <alexander.stein@ew.tq-group.com>
To:     Steve Longerbeam <slongerbeam@gmail.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        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>,
        Rui Miguel Silva <rmfrfs@gmail.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Dorota Czaplejewicz <dorota.czaplejewicz@puri.sm>
Cc:     Alexander Stein <alexander.stein@ew.tq-group.com>,
        linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 6/8] media: imx: imx7_media-csi: Add support for additional Bayer patterns
Date:   Fri,  4 Feb 2022 13:15:12 +0100
Message-Id: <20220204121514.2762676-7-alexander.stein@ew.tq-group.com>
In-Reply-To: <20220204121514.2762676-1-alexander.stein@ew.tq-group.com>
References: <20220204121514.2762676-1-alexander.stein@ew.tq-group.com>
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imx7_csi_configure() allows configuring these Bayer patterns when
starting a stream. So allow these in link_validate() as well.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
I'm wondering if V4L2_PIX_FMT_SBGGR16 (and their variants) is correct in this
function. imx7_csi_configure() does not list MEDIA_BUS_FMT_Sxxxx16_1X16.
Also I can't find a proper a proper setting in CSI_CR18 of CSI Bridge in
IMX8M Mini RM for RAW16. The feature list names a  "16-bit data port for
Bayer data input", but is it actually supported? I do not know anything about
the MIPI CSI data formats though. Maybe someone else can clarify this.

 drivers/staging/media/imx/imx7-media-csi.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c
index 158d2a736c6d..7e737221f187 100644
--- a/drivers/staging/media/imx/imx7-media-csi.c
+++ b/drivers/staging/media/imx/imx7-media-csi.c
@@ -1004,6 +1004,18 @@ static int imx7_csi_pad_link_validate(struct v4l2_subdev *sd,
 	case V4L2_PIX_FMT_SGBRG8:
 	case V4L2_PIX_FMT_SGRBG8:
 	case V4L2_PIX_FMT_SRGGB8:
+	case V4L2_PIX_FMT_SBGGR10:
+	case V4L2_PIX_FMT_SGBRG10:
+	case V4L2_PIX_FMT_SGRBG10:
+	case V4L2_PIX_FMT_SRGGB10:
+	case V4L2_PIX_FMT_SBGGR12:
+	case V4L2_PIX_FMT_SGBRG12:
+	case V4L2_PIX_FMT_SGRBG12:
+	case V4L2_PIX_FMT_SRGGB12:
+	case V4L2_PIX_FMT_SBGGR14:
+	case V4L2_PIX_FMT_SGBRG14:
+	case V4L2_PIX_FMT_SGRBG14:
+	case V4L2_PIX_FMT_SRGGB14:
 	case V4L2_PIX_FMT_SBGGR16:
 	case V4L2_PIX_FMT_SGBRG16:
 	case V4L2_PIX_FMT_SGRBG16:
-- 
2.25.1