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Message-Id: <20240827142458.265558-1-alexander.stein@ew.tq-group.com>
Date: Tue, 27 Aug 2024 16:24:58 +0200
From: Alexander Stein <alexander.stein@...tq-group.com>
To: Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>
Cc: Alexander Stein <alexander.stein@...tq-group.com>,
linux@...tq-group.com,
devicetree@...r.kernel.org,
imx@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/1] ARM: dts: imx6qdl: Add reserved memory area for CMA memory
Default CMA size is too small for HDMI output and VPU usage. Increase the
default size by providing a CMA memory area.
Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
---
Smallest RAM variant has 512MiB.
arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi
index d03f7065ddfd7..8ba3ec27bee07 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-mba6.dtsi
@@ -106,6 +106,20 @@ reg_vcc3v3_audio: regulator-vcc3v3-audio {
vin-supply = <®_mba6_3p3v>;
};
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ linux,cma {
+ compatible = "shared-dma-pool";
+ reusable;
+ size = <0x14000000>;
+ alloc-ranges = <0x10000000 0x20000000>;
+ linux,cma-default;
+ };
+ };
+
sound {
compatible = "fsl,imx-audio-tlv320aic32x4";
pinctrl-names = "default";
--
2.34.1
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