From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rui Miguel Silva Subject: [PATCH v2 07/15] ARM: dts: increase default cma size to 40MB Date: Mon, 23 Apr 2018 14:47:42 +0100 Message-ID: <20180423134750.30403-8-rui.silva@linaro.org> References: <20180423134750.30403-1-rui.silva@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180423134750.30403-1-rui.silva@linaro.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" To: mchehab@kernel.org, sakari.ailus@linux.intel.com, Steve Longerbeam , Philipp Zabel , Rob Herring Cc: devel@driverdev.osuosl.org, devicetree@vger.kernel.org, Greg Kroah-Hartman , Ryan Harkin , Rui Miguel Silva , Fabio Estevam , Shawn Guo , linux-media@vger.kernel.org List-Id: devicetree@vger.kernel.org To support camera in i.MX7 the cma heap is used to allocate frame buffers. The default size of CMA is 16MB which is not enough for higher resolutions (ex: 1600x1200). So, increase the default CMA size to 40MB. Signed-off-by: Rui Miguel Silva --- arch/arm/boot/dts/imx7s.dtsi | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi index 4d42335c0dee..142ea709d296 100644 --- a/arch/arm/boot/dts/imx7s.dtsi +++ b/arch/arm/boot/dts/imx7s.dtsi @@ -182,6 +182,20 @@ ; }; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + /* global autoconfigured region for contiguous allocations */ + linux,cma { + compatible = "shared-dma-pool"; + reusable; + size = <0x2800000>; + linux,cma-default; + }; + }; + soc { #address-cells = <1>; #size-cells = <1>; -- 2.17.0