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[2003:f1:33c8:ad00:10b8:127c:436:7d1]) by smtp.googlemail.com with ESMTPSA id h84sm16745965wmf.15.2019.04.13.10.15.45 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 13 Apr 2019 10:15:45 -0700 (PDT) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org, khilman@baylibre.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, mjourdan@baylibre.com, Martin Blumenstingl Subject: [PATCH 1/3] ARM: dts: meson8: add the canvas module Date: Sat, 13 Apr 2019 19:15:30 +0200 Message-Id: <20190413171532.25967-2-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190413171532.25967-1-martin.blumenstingl@googlemail.com> References: <20190413171532.25967-1-martin.blumenstingl@googlemail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add the canvas module to Meson8 because it's required for the VPU (video output) and video decoders. The canvas module is located inside thie "DMC bus" (where also some of the memory controller registers are located). The "DMC bus" itself is part of the so-called "MMC bus". Amlogic's vendor kernel has an explicit #define for the "DMC" register range on Meson8m2 while there's no such #define for Meson8. However, the canvas and memory controller registers on Meson8 are all expressed as "0x6000 + actual offset", while Meson8m2 uses "DMC + actual offset". Thus it's safe to assume that the DMC bus exists on both SoCs even though the registers inside are slightly different. Signed-off-by: Martin Blumenstingl --- arch/arm/boot/dts/meson8.dtsi | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi index 7ef442462ea4..6b5c90bb960b 100644 --- a/arch/arm/boot/dts/meson8.dtsi +++ b/arch/arm/boot/dts/meson8.dtsi @@ -228,6 +228,27 @@ }; }; + mmcbus: bus@c8000000 { + compatible = "simple-bus"; + reg = <0xc8000000 0x8000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0xc8000000 0x8000>; + + dmcbus: bus@6000 { + compatible = "simple-bus"; + reg = <0x6000 0x400>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x6000 0x400>; + + canvas: video-lut@20 { + compatible = "amlogic,canvas"; + reg = <0x20 0x14>; + }; + }; + }; + apb: bus@d0000000 { compatible = "simple-bus"; reg = <0xd0000000 0x200000>; -- 2.21.0