openwrt/target/linux/bcm27xx/patches-5.10/950-0330-media-bcm2835-unicam-Retain-packing-information-on-G.patch
Álvaro Fernández Rojas 8299d1f057 bcm27xx: add kernel 5.10 support
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2021-08-21 19:07:07 +02:00

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1.5 KiB
Diff

From bbdb89fbe61de5bacbb44ab919548fb84f1426d2 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] 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(-)
--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
@@ -980,8 +980,23 @@ static int unicam_g_fmt_vid_cap(struct f
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;