mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 06:57:57 +00:00
2e715fb4fc
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y
Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B
Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
80 lines
2.4 KiB
Diff
80 lines
2.4 KiB
Diff
From 6ef818eed60db70e9caf6bdf74cc1f9943994226 Mon Sep 17 00:00:00 2001
|
|
From: Naushir Patuck <naush@raspberrypi.com>
|
|
Date: Fri, 16 Jun 2023 16:24:19 +0100
|
|
Subject: [PATCH] drivers: media: bcm2835_unicam: Improve frame sequence count
|
|
handling
|
|
|
|
Ensure that the frame sequence counter is incremented only if a previous
|
|
frame start interrupt has occurred, or a frame start + frame end has
|
|
occurred simultaneously.
|
|
|
|
This corresponds the sequence number with the actual number of frames
|
|
produced by the sensor, not the number of frame buffers dequeued back
|
|
to userland.
|
|
|
|
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
|
|
---
|
|
.../media/platform/bcm2835/bcm2835-unicam.c | 19 ++++++++++++++++++-
|
|
1 file changed, 18 insertions(+), 1 deletion(-)
|
|
|
|
--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
|
|
+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
|
|
@@ -522,6 +522,7 @@ struct unicam_device {
|
|
/* subdevice async Notifier */
|
|
struct v4l2_async_notifier notifier;
|
|
unsigned int sequence;
|
|
+ bool frame_started;
|
|
|
|
/* ptr to sub device */
|
|
struct v4l2_subdev *sensor;
|
|
@@ -914,6 +915,8 @@ static irqreturn_t unicam_isr(int irq, v
|
|
* buffer forever.
|
|
*/
|
|
if (fe) {
|
|
+ bool inc_seq = unicam->frame_started;
|
|
+
|
|
/*
|
|
* Ensure we have swapped buffers already as we can't
|
|
* stop the peripheral. If no buffer is available, use a
|
|
@@ -949,11 +952,23 @@ static irqreturn_t unicam_isr(int irq, v
|
|
unicam_process_buffer_complete(node, sequence);
|
|
node->cur_frm = node->next_frm;
|
|
node->next_frm = NULL;
|
|
+ inc_seq = true;
|
|
} else {
|
|
node->cur_frm = node->next_frm;
|
|
}
|
|
}
|
|
- unicam->sequence++;
|
|
+
|
|
+ /*
|
|
+ * Increment the sequence number conditionally on either a FS
|
|
+ * having already occurred, or in the FE + FS condition as
|
|
+ * caught in the FE handler above. This ensures the sequence
|
|
+ * number corresponds to the frames generated by the sensor, not
|
|
+ * the frames dequeued to userland.
|
|
+ */
|
|
+ if (inc_seq) {
|
|
+ unicam->sequence++;
|
|
+ unicam->frame_started = false;
|
|
+ }
|
|
}
|
|
|
|
if (ista & UNICAM_FSI) {
|
|
@@ -996,6 +1011,7 @@ static irqreturn_t unicam_isr(int irq, v
|
|
}
|
|
|
|
unicam_queue_event_sof(unicam);
|
|
+ unicam->frame_started = true;
|
|
}
|
|
|
|
/*
|
|
@@ -2600,6 +2616,7 @@ static int unicam_start_streaming(struct
|
|
vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
|
|
}
|
|
|
|
+ dev->frame_started = false;
|
|
unicam_start_rx(dev, buffer_addr);
|
|
|
|
ret = v4l2_subdev_call(dev->sensor, video, s_stream, 1);
|