Adds example test entry to create and expose a dummy "camera"
cma region via the dmabuf heaps interface
This isn't a patch I'm submitting to merge, but just an example
of how this functionality can be used, which I've used for
testing.
Cc: Rob Herring <robh...@kernel.org>
Cc: Sumit Semwal <sumit.sem...@linaro.org>
Cc: "Andrew F. Davis" <a...@ti.com>
Cc: Benjamin Gaignard <benjamin.gaign...@linaro.org>
Cc: Liam Mark <lm...@codeaurora.org>
Cc: Pratik Patel <prat...@codeaurora.org>
Cc: Laura Abbott <labb...@redhat.com>
Cc: Brian Starkey <brian.star...@arm.com>
Cc: Chenbo Feng <fe...@google.com>
Cc: Alistair Strachan <astrac...@google.com>
Cc: Sandeep Patil <sspa...@google.com>
Cc: Hridya Valsaraju <hri...@google.com>
Cc: Christoph Hellwig <h...@lst.de>
Cc: Marek Szyprowski <m.szyprow...@samsung.com>
Cc: Robin Murphy <robin.mur...@arm.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: devicet...@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux...@kvack.org
Signed-off-by: John Stultz <john.stu...@linaro.org>
---
arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
index c0a6aad9593f..5eef1a76d51a 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
@@ -81,6 +81,13 @@
reusable;
linux,cma-default;
};
+
+ cma_camera: cma-camera {
+ compatible = "shared-dma-pool";
+ reg = <0x0 0x24C00000 0x0 0x4000000>;
+ reusable;
+ linux,cma-heap;
+ };
};
reboot-mode-syscon@32100000 {
--
2.17.1
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