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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 {
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