1 files changed, 50 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0729-media-bcm2835-unicam-Add-support-for-luma-greyscale-.patch b/target/linux/bcm27xx/patches-4.19/950-0729-media-bcm2835-unicam-Add-support-for-luma-greyscale-.patch
new file mode 100644
index 0000000000..61a817ab6b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0729-media-bcm2835-unicam-Add-support-for-luma-greyscale-.patch
@@ -0,0 +1,50 @@
+From 253dd469e6403b6c2afd25d4f8338a0c1588583f Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Thu, 3 Oct 2019 13:45:51 +0100
+Subject: [PATCH] media: bcm2835-unicam: Add support for luma/greyscale
+ formats
+
+Add support for V4L2_PIX_FMT_GREY, V4L2_PIX_FMT_Y10P,
+V4L2_PIX_FMT_Y10, and V4L2_PIX_FMT_Y12 image formats from the
+appropriate mediabus formats advertised by sensors.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 21 ++++++++++++++++++-
+ 1 file changed, 20 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -307,12 +307,31 @@ static const struct unicam_fmt formats[]
+ 		.code		= MEDIA_BUS_FMT_SRGGB14_1X14,
+ 		.depth		= 14,
+ 		.csi_dt		= 0x2d,
+-	},
++	}, {
+ 	/*
+ 	 * 16 bit Bayer formats could be supported, but there is no CSI2
+ 	 * data_type defined for raw 16, and no sensors that produce it at
+ 	 * present.
+ 	 */
++
++	/* Greyscale formats */
++		.fourcc		= V4L2_PIX_FMT_GREY,
++		.code		= MEDIA_BUS_FMT_Y8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_Y10P,
++		.repacked_fourcc = V4L2_PIX_FMT_Y10,
++		.code		= MEDIA_BUS_FMT_Y10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		/* NB There is no packed V4L2 fourcc for this format. */
++		.repacked_fourcc = V4L2_PIX_FMT_Y12,
++		.code		= MEDIA_BUS_FMT_Y12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	},
+ };
+ 
+ struct unicam_dmaqueue {