[PATCH 5/6] arm64: dts: qcom: qrb5165-rb5-vision-mezzanine: Add cma heap for libcamera softisp support

From: Bryan O'Donoghue
Date: Fri Oct 25 2024 - 11:47:01 EST


libcamera softisp requires a linux,cma heap export in order to support
user-space debayering, 3a and export to other system components such as
pipewire, Firefox/Chromium - Hangouts, Zoom etc.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/qrb5165-rb5-vision-mezzanine.dtso | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5-vision-mezzanine.dtso b/arch/arm64/boot/dts/qcom/qrb5165-rb5-vision-mezzanine.dtso
index 5fe331923dd3cd31ff2be047a2228e1c4104e80e..ae256c713a36078afdadc67193f381a19ea8e5d3 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5-vision-mezzanine.dtso
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5-vision-mezzanine.dtso
@@ -9,6 +9,17 @@
#include <dt-bindings/clock/qcom,camcc-sm8250.h>
#include <dt-bindings/gpio/gpio.h>

+/ {
+ reserved-memory {
+ linux,cma {
+ compatible = "shared-dma-pool";
+ size = <0x0 0x8000000>;
+ reusable;
+ linux,cma-default;
+ };
+ };
+};
+
&camcc {
status = "okay";
};

--
2.47.0