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>

1 files changed, 38 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0240-media-bcm2835-unicam-Fix-reference-counting-in-unica.patch b/target/linux/bcm27xx/patches-5.10/950-0240-media-bcm2835-unicam-Fix-reference-counting-in-unica.patch
new file mode 100644
index 0000000000..5b1ef1b468
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0240-media-bcm2835-unicam-Fix-reference-counting-in-unica.patch
@@ -0,0 +1,38 @@
+From 0d2110a5d2764c80179590e707929d0e6dda0c6d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 30 Apr 2020 09:52:50 +0100
+Subject: [PATCH] media: bcm2835-unicam: Fix reference counting in
+ unicam_open
+
+The reference counting of node->open was only incremented after
+a check that the node was v4l2_fh_is_singular_file, which resulted
+in the counting going wrong and s_power not being called at an
+appropriate time.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -2170,16 +2170,18 @@ static int unicam_open(struct file *file
+ 		goto unlock;
+ 	}
+ 
++	node->open++;
++
+ 	if (!v4l2_fh_is_singular_file(file))
+ 		goto unlock;
+ 
+ 	ret = v4l2_subdev_call(dev->sensor, core, s_power, 1);
+ 	if (ret < 0 && ret != -ENOIOCTLCMD) {
+ 		v4l2_fh_release(file);
++		node->open--;
+ 		goto unlock;
+ 	}
+ 
+-	node->open++;
+ 	ret = 0;
+ 
+ unlock: