From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Tue, 10 Mar 2020 16:06:33 +0000 (+0100)
Subject: media: imx: imx7-media-csi: Support clamping Y10 and Y12 to Y8
X-Git-Tag: v5.10.7~2993^2~37
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2a9c226da9aa997d862a22292279e806114a9db8;p=platform%2Fkernel%2Flinux-rpi.git

media: imx: imx7-media-csi: Support clamping Y10 and Y12 to Y8

10-bit and 12-bit greyscale input data to the CSI can be written as
8-bit data to memory. Support this.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---

diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c
index a7771dd..acbdffb 100644
--- a/drivers/staging/media/imx/imx7-media-csi.c
+++ b/drivers/staging/media/imx/imx7-media-csi.c
@@ -804,6 +804,14 @@ static int imx7_csi_configure(struct imx7_csi *csi)
 	case V4L2_PIX_FMT_YUYV:
 		cr18 |= BIT_MIPI_DATA_FORMAT_YUV422_8B;
 		break;
+	case V4L2_PIX_FMT_GREY:
+		if (in_code == MEDIA_BUS_FMT_Y8_1X8)
+			cr18 |= BIT_MIPI_DATA_FORMAT_RAW8;
+		else if (in_code == MEDIA_BUS_FMT_Y10_1X10)
+			cr18 |= BIT_MIPI_DATA_FORMAT_RAW10;
+		else
+			cr18 |= BIT_MIPI_DATA_FORMAT_RAW12;
+		break;
 	case V4L2_PIX_FMT_Y10:
 		cr18 |= BIT_MIPI_DATA_FORMAT_RAW10;
 		cr1 |= BIT_PIXEL_BIT;