Adds example test entry to create and expose a 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: Mark Rutland <mark.rutl...@arm.com>
Cc: Laura Abbott <labb...@redhat.com>
Cc: Benjamin Gaignard <benjamin.gaign...@linaro.org>
Cc: Sumit Semwal <sumit.sem...@linaro.org>
Cc: Liam Mark <lm...@codeaurora.org>
Cc: Pratik Patel <prat...@codeaurora.org>
Cc: Brian Starkey <brian.star...@arm.com>
Cc: Andrew F. Davis <a...@ti.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: devicet...@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: John Stultz <john.stu...@linaro.org>
---
arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
index 190ac29b9e2f..783c5b2abd2d 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
@@ -75,12 +75,23 @@
};
/* global autoconfigured region for contiguous allocations */
- linux,cma {
+ cma_default: linux,cma {
compatible = "shared-dma-pool";
reg = <0x0 0x20C00000 0x0 0x4000000>;
reusable;
linux,cma-default;
};
+
+ cma_camera: cma-camera {
+ compatible = "shared-dma-pool";
+ reg = <0x0 0x24C00000 0x0 0x4000000>;
+ reusable;
+ };
+ };
+
+ cma_heap {
+ compatible = "dmabuf-heap-cma";
+ memory-region = <&cma_camera>;
};
reboot-mode-syscon@32100000 {
--
2.17.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
