temp/libcamera: upgrade to 0.3.2

Rebase our downstream patches and drop the two included in the release.

See https://gitlab.freedesktop.org/camera/libcamera/-/tags/v0.3.2 for release notes.

---

@pabloyoyoista whoops, I guess https://gitlab.com/postmarketOS/pmaports/-/merge_requests/5615 wouldn't have been necessary

---

Draft until I had time to test on all my test devices.

temp/libcamera/0001-libcamera-debayer_cpu-Sync-DMABUFs.patch

-From cde234eb9b33b1f38848cb4abc196f609be37a3a Mon Sep 17 00:00:00 2001
-From: Robert Mader <robert.mader@collabora.com>
-Date: Fri, 20 Sep 2024 12:49:15 +0100
-Subject: [PATCH] libcamera: debayer_cpu: Sync DMABUFs
-
-Using `DMA_BUF_IOCTL_SYNC` is required for DMABUFs in order to ensure
-correct output. Not doing so currently results in occasional tearing
-and/or backlashes in GL/VK clients that use the buffers directly for
-rendering.
-
-An alternative approach to have the sync code in `MappedFrameBuffer` was
-considered but rejected for now, in order to allow clients more
-flexibility.
-
-While the new helper is added to an annoymous namespace, add
-timeDiff to the same namespace and remove the static definition as a
-drive by.
-
-Signed-off-by: Robert Mader <robert.mader@collabora.com>
-Tested-by: Milan Zamazal <mzamazal@redhat.com> # Debix
-Tested-by: Hans de Goede <hdegoede@redhat.com> # IPU6 + ov2740
-Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # Lenovo X13s + OV5675
-Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
-Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
-Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
-Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
----
- src/libcamera/software_isp/debayer_cpu.cpp | 32 +++++++++++++++++++++-
- 1 file changed, 31 insertions(+), 1 deletion(-)
-
-diff --git a/src/libcamera/software_isp/debayer_cpu.cpp b/src/libcamera/software_isp/debayer_cpu.cpp
-index f8d2677d..686a3b64 100644
---- a/src/libcamera/software_isp/debayer_cpu.cpp
-+++ b/src/libcamera/software_isp/debayer_cpu.cpp
-@@ -12,8 +12,11 @@
- #include "debayer_cpu.h"
- 
- #include <stdlib.h>
-+#include <sys/ioctl.h>
- #include <time.h>
- 
-+#include <linux/dma-buf.h>
-+
- #include <libcamera/formats.h>
- 
- #include "libcamera/internal/bayer_format.h"
-@@ -725,12 +728,33 @@ void DebayerCpu::process4(const uint8_t *src, uint8_t *dst)
- 	}
- }
- 
--static inline int64_t timeDiff(timespec &after, timespec &before)
-+namespace {
-+
-+void syncBufferForCPU(FrameBuffer *buffer, uint64_t syncFlags)
-+{
-+	for (const FrameBuffer::Plane &plane : buffer->planes()) {
-+		const int fd = plane.fd.get();
-+		struct dma_buf_sync sync = { syncFlags };
-+		int ret;
-+
-+		ret = ioctl(fd, DMA_BUF_IOCTL_SYNC, &sync);
-+		if (ret < 0) {
-+			ret = errno;
-+			LOG(Debayer, Error)
-+				<< "Syncing buffer FD " << fd << " with flags "
-+				<< syncFlags << " failed: " << strerror(ret);
-+		}
-+	}
-+}
-+
-+inline int64_t timeDiff(timespec &after, timespec &before)
- {
- 	return (after.tv_sec - before.tv_sec) * 1000000000LL +
- 	       (int64_t)after.tv_nsec - (int64_t)before.tv_nsec;
- }
- 
-+} /* namespace */
-+
- void DebayerCpu::process(FrameBuffer *input, FrameBuffer *output, DebayerParams params)
- {
- 	timespec frameStartTime;
-@@ -740,6 +764,9 @@ void DebayerCpu::process(FrameBuffer *input, FrameBuffer *output, DebayerParams
- 		clock_gettime(CLOCK_MONOTONIC_RAW, &frameStartTime);
- 	}
- 
-+	syncBufferForCPU(input, DMA_BUF_SYNC_START | DMA_BUF_SYNC_READ);
-+	syncBufferForCPU(output, DMA_BUF_SYNC_START | DMA_BUF_SYNC_WRITE);
-+
- 	green_ = params.green;
- 	red_ = swapRedBlueGains_ ? params.blue : params.red;
- 	blue_ = swapRedBlueGains_ ? params.red : params.blue;
-@@ -767,6 +794,9 @@ void DebayerCpu::process(FrameBuffer *input, FrameBuffer *output, DebayerParams
- 
- 	metadata.planes()[0].bytesused = out.planes()[0].size();
- 
-+	syncBufferForCPU(output, DMA_BUF_SYNC_END | DMA_BUF_SYNC_WRITE);
-+	syncBufferForCPU(input, DMA_BUF_SYNC_END | DMA_BUF_SYNC_READ);
-+
- 	/* Measure before emitting signals */
- 	if (measuredFrames_ < DebayerCpu::kLastFrameToMeasure &&
- 	    ++measuredFrames_ > DebayerCpu::kFramesToSkip) {
--- 
-2.46.1
-