[PATCH v2 1/2] arm64: dts: hikey: extend default cma size to 128MB

[Guodong Xu]

To support display in Debian on HiKey, cma heap is used to allocate
graphic buffers. The default size of CMA is 16 MB which is not enough.

Increase the default CMA size to 128 MB.

cc: Fathi Boudra <fathi.boudra at linaro.org>
cc: John Stultz <john.stultz at linaro.org>
cc: Xinliang Liu <xinliang.liu at linaro.org>
Signed-off-by: Guodong Xu <guodong.xu at linaro.org>
Acked-by: Rob Herring <robh at kernel.org>
---
 arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 9e4e06a..dba3c13 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -57,8 +57,15 @@
 			console-size	= <0x00020000>;
 			ftrace-size	= <0x00020000>;
 		};
-	};
 
+		/* global autoconfigured region for contiguous allocations */
+		linux,cma {
+			compatible = "shared-dma-pool";
+			reusable;
+			size = <0x00000000 0x08000000>;
+			linux,cma-default;
+		};
+	};
 
 	reboot-mode-syscon at 5f01000 {
 		compatible = "syscon", "simple-mfd";
-- 
1.9.1