From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frederic Chen Subject: [RFC PATCH V1 2/6] dts: arm64: mt8183: Add DIP shared memory node Date: Wed, 17 Apr 2019 18:45:07 +0800 Message-ID: <20190417104511.21514-3-frederic.chen@mediatek.com> References: <20190417104511.21514-1-frederic.chen@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190417104511.21514-1-frederic.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+glpam-linux-mediatek=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: hans.verkuil-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org, laurent.pinchart+renesas-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org, tfiga-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, mchehab-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org Cc: shik-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Sean.Cheng-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, Rynn.Wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, srv_heupstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, holmes.chiou-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, suleiman-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, Jerry-ch.Chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, jungo.lin-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, sj.huang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, yuzhao-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, zwisler-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, christie.yu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, frederic.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-media-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org This patch adds a shared memory region used on mt8183 for exchanging tuning data between co-processor and Digital Image Processing(DIP) unit. Signed-off-by: Frederic Chen --- arch/arm64/boot/dts/mediatek/mt8183.dtsi | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi index c3a516e63141..aec68c6b4571 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi @@ -134,6 +134,19 @@ clock-output-names = "clk26m"; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + reserve-memory-dip_smem { + compatible = "mediatek,reserve-memory-dip_smem"; + no-map; + size = <0 0x01400000>; /*20 MB share mem size */ + alignment = <0 0x1000>; + alloc-ranges = <0 0x40000000 0 0x10000000>; + }; + }; + timer { compatible = "arm,armv8-timer"; interrupt-parent = <&gic>; -- 2.18.0