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, 55 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0216-media-bcm2835-unicam-Add-support-for-the-FRAME_SYNC-.patch b/target/linux/bcm27xx/patches-5.10/950-0216-media-bcm2835-unicam-Add-support-for-the-FRAME_SYNC-.patch
new file mode 100644
index 0000000000..40fe0a9750
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0216-media-bcm2835-unicam-Add-support-for-the-FRAME_SYNC-.patch
@@ -0,0 +1,55 @@
+From 6195ecf605368d29a9ef684da387a6929845f925 Mon Sep 17 00:00:00 2001
+From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Date: Tue, 24 Mar 2020 23:13:02 +0200
+Subject: [PATCH] media: bcm2835-unicam: Add support for the FRAME_SYNC
+ event
+
+The FRAME_SYNC event is useful for userspace image processing algorithms
+to program the camera sensor as early as possible after frame start.
+Support it.
+
+Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
+Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
+Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -772,6 +772,16 @@ static int unicam_all_nodes_disabled(str
+ 	       !dev->node[METADATA_PAD].streaming;
+ }
+ 
++static void unicam_queue_event_sof(struct unicam_device *unicam)
++{
++	struct v4l2_event event = {
++		.type = V4L2_EVENT_FRAME_SYNC,
++		.u.frame_sync.frame_sequence = unicam->sequence,
++	};
++
++	v4l2_event_queue(&unicam->node[IMAGE_PAD].video_dev, &event);
++}
++
+ /*
+  * unicam_isr : ISR handler for unicam capture
+  * @irq: irq number
+@@ -853,6 +863,8 @@ static irqreturn_t unicam_isr(int irq, v
+ 			 */
+ 			unicam_schedule_dummy_buffer(&unicam->node[i]);
+ 		}
++
++		unicam_queue_event_sof(unicam);
+ 	}
+ 	/*
+ 	 * Cannot swap buffer at frame end, there may be a race condition
+@@ -2022,6 +2034,8 @@ static int unicam_subscribe_event(struct
+ 				  const struct v4l2_event_subscription *sub)
+ {
+ 	switch (sub->type) {
++	case V4L2_EVENT_FRAME_SYNC:
++		return v4l2_event_subscribe(fh, sub, 2, NULL);
+ 	case V4L2_EVENT_SOURCE_CHANGE:
+ 		return v4l2_event_subscribe(fh, sub, 4, NULL);
+ 	}