bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0716-udmabuf-Remove-deleted-map-unmap-handlers.patch b/target/linux/bcm27xx/patches-5.4/950-0716-udmabuf-Remove-deleted-map-unmap-handlers.patch
new file mode 100644
index 0000000000..bc7b5bea91
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0716-udmabuf-Remove-deleted-map-unmap-handlers.patch
@@ -0,0 +1,52 @@
+From b1f02a027329f23272bd89c80a3f51ff64377fc2 Mon Sep 17 00:00:00 2001
+From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
+Date: Tue, 26 Nov 2019 15:25:16 +0100
+Subject: [PATCH] udmabuf: Remove deleted map/unmap handlers.
+
+Commit 19d32ace8b6acebc45da1ea748000ac79ccc7721 upstream.
+
+Commit 7f0de8d80816 ("dma-buf: Drop dma_buf_k(un)map") removed map/unmap
+handlers, but they still existed in udmabuf. Remove them there as well
+
+Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
+Fixes: 7f0de8d80816 ("dma-buf: Drop dma_buf_k(un)map")
+Cc: Sumit Semwal <sumit.semwal@linaro.org>
+Cc: Daniel Vetter <daniel.vetter@intel.com>
+Cc: linux-media@vger.kernel.org
+Cc: linaro-mm-sig@lists.linaro.org
+Cc: dri-devel@lists.freedesktop.org
+Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Link: https://patchwork.freedesktop.org/patch/msgid/20191126142516.630200-1-maarten.lankhorst@linux.intel.com
+---
+ drivers/dma-buf/udmabuf.c | 16 ----------------
+ 1 file changed, 16 deletions(-)
+
+--- a/drivers/dma-buf/udmabuf.c
++++ b/drivers/dma-buf/udmabuf.c
+@@ -93,26 +93,10 @@ static void release_udmabuf(struct dma_b
+ 	kfree(ubuf);
+ }
+ 
+-static void *kmap_udmabuf(struct dma_buf *buf, unsigned long page_num)
+-{
+-	struct udmabuf *ubuf = buf->priv;
+-	struct page *page = ubuf->pages[page_num];
+-
+-	return kmap(page);
+-}
+-
+-static void kunmap_udmabuf(struct dma_buf *buf, unsigned long page_num,
+-			   void *vaddr)
+-{
+-	kunmap(vaddr);
+-}
+-
+ static const struct dma_buf_ops udmabuf_ops = {
+ 	.map_dma_buf	  = map_udmabuf,
+ 	.unmap_dma_buf	  = unmap_udmabuf,
+ 	.release	  = release_udmabuf,
+-	.map		  = kmap_udmabuf,
+-	.unmap		  = kunmap_udmabuf,
+ 	.mmap		  = mmap_udmabuf,
+ };
+