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openmptcprouter/root/target/linux/bcm27xx/patches-5.14/0220-media-bcm2835-unicam-Retain-packing-information-on-G.patch
Ycarus (Yannick Chabanois) 5c593832cc Add 5.14 patches for RPI
2021-10-01 16:58:58 +02:00

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From 55536f7808c75c969266d07a8dc0a646029fbb9d Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Tue, 19 May 2020 11:46:47 +0100
Subject: [PATCH 220/552] media: bcm2835-unicam: Retain packing information on
G_FMT
The change to retrieve the pixel format always on g_fmt didn't
check whether the native or unpacked version of the format
had been requested, and always returned the packed one.
Correct this so that the packing setting is retained whereever
possible.
Fixes "9d59e89 media: bcm2835-unicam: Re-fetch mbus code from subdev
on a g_fmt call"
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
.../media/platform/bcm2835/bcm2835-unicam.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/bcm2835/bcm2835-unicam.c b/drivers/media/platform/bcm2835/bcm2835-unicam.c
index 52a534d932bf..b32b2d33a4e2 100644
--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
@@ -974,8 +974,23 @@ static int unicam_g_fmt_vid_cap(struct file *file, void *priv,
if (!fmt)
return -EINVAL;
- node->fmt = fmt;
- node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
+ if (node->fmt != fmt) {
+ /*
+ * The sensor format has changed so the pixelformat needs to
+ * be updated. Try and retain the packed/unpacked choice if
+ * at all possible.
+ */
+ if (node->fmt->repacked_fourcc ==
+ node->v_fmt.fmt.pix.pixelformat)
+ /* Using the repacked format */
+ node->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc;
+ else
+ /* Using the native format */
+ node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
+
+ node->fmt = fmt;
+ }
+
*f = node->v_fmt;
return 0;
--
2.33.0