ARM: dts: msm: configure default CMA region for sdm660

Configure the size of the default CMA region to 32 MB in
DT for sdm660.

Configuring the default CMA region in the DT is cleaner
than using CONFIG_CMA_SIZE_MBYTES since it is easier to
configure per target and the alloc ranges can be specified
in DT.

Change-Id: I64d4e1ee379b2a3110ecd403e7ed838948df6ca3
Signed-off-by: Shiraz Hashim <shashim@codeaurora.org>

diff --git a/arch/arm/boot/dts/qcom/sdm660.dtsi b/arch/arm/boot/dts/qcom/sdm660.dtsi
index d8462c9..3a7dd1e 100644 (file)
--- a/arch/arm/boot/dts/qcom/sdm660.dtsi
+++ b/arch/arm/boot/dts/qcom/sdm660.dtsi
@@ -325,6 +325,16 @@
                        alignment = <0x0 0x400000>;
                        size = <0x0 0x5c00000>;
                };
+
+               /* global autoconfigured region for contiguous allocations */
+               linux,cma {
+                       compatible = "shared-dma-pool";
+                       alloc-ranges = <0 0x00000000 0 0xffffffff>;
+                       reusable;
+                       alignment = <0 0x400000>;
+                       size = <0 0x2000000>;
+                       linux,cma-default;
+               };
        };
 
        bluetooth: bt_wcn3990 {