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[109.49.46.234]) by smtp.gmail.com with ESMTPSA id v66sm5220937wmd.41.2018.04.19.03.18.52 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 19 Apr 2018 03:18:53 -0700 (PDT) From: Rui Miguel Silva To: mchehab@kernel.org, sakari.ailus@linux.intel.com, Steve Longerbeam , Philipp Zabel , Rob Herring Cc: linux-media@vger.kernel.org, devel@driverdev.osuosl.org, Shawn Guo , Fabio Estevam , devicetree@vger.kernel.org, Greg Kroah-Hartman , Ryan Harkin , Rui Miguel Silva Subject: [PATCH 09/15] media: dt-bindings: add bindings for i.MX7 media driver Date: Thu, 19 Apr 2018 11:18:06 +0100 Message-Id: <20180419101812.30688-10-rui.silva@linaro.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180419101812.30688-1-rui.silva@linaro.org> References: <20180419101812.30688-1-rui.silva@linaro.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add bindings documentation for i.MX7 media drivers. Signed-off-by: Rui Miguel Silva --- .../devicetree/bindings/media/imx7.txt | 158 ++++++++++++++++++ 1 file changed, 158 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/imx7.txt diff --git a/Documentation/devicetree/bindings/media/imx7.txt b/Documentation/devicetree/bindings/media/imx7.txt new file mode 100644 index 000000000000..7e058ea25102 --- /dev/null +++ b/Documentation/devicetree/bindings/media/imx7.txt @@ -0,0 +1,158 @@ +Freescale i.MX7 Media Video Device +================================== + +Video Media Controller node +--------------------------- + +This is the media controller node for video capture support. It is a +virtual device that lists the camera serial interface nodes that the +media device will control. + +Required properties: +- compatible : "fsl,imx7-capture-subsystem"; +- ports : Should contain a list of phandles pointing to camera + sensor interface port of CSI + +example: + +capture-subsystem { + compatible = "fsl,imx7-capture-subsystem"; + ports = <&csi>; +}; + + +mipi_csi2 node +-------------- + +This is the device node for the MIPI CSI-2 receiver core in i.MX7 SoC. It is +compatible with previous version of Samsung D-phy. + +Required properties: + +- compatible : "fsl,imx7-mipi-csi2"; +- reg : base address and length of the register set for the device; +- interrupts : should contain MIPI CSIS interrupt; +- clocks : list of clock specifiers, see + Documentation/devicetree/bindings/clock/clock-bindings.txt for details; +- clock-names : must contain "mipi" and "phy" entries, matching entries in the + clock property; +- power-domains : a phandle to the power domain, see + Documentation/devicetree/bindings/power/power_domain.txt for details. +- reset-names : should include following entry "mrst"; +- resets : a list of phandle, should contain reset entry of + reset-names; +- phy-supply : from the generic phy bindings, a phandle to a regulator that + provides power to VBUS; +- bus-width : maximum number of data lanes supported (SoC specific); + +Optional properties: + +- clock-frequency : The IP's main (system bus) clock frequency in Hz, default + value when this property is not specified is 166 MHz; + +port node +--------- + +- reg : (required) can take the values 0 or 1, where 0 is the + related sink port and port 1 should be the source one; + +endpoint node +------------- + +- data-lanes : (required) an array specifying active physical MIPI-CSI2 + data input lanes and their mapping to logical lanes; the + array's content is unused, only its length is meaningful; + +- csis-hs-settle : (optional) differential receiver (HS-RX) settle time; +- csis-clk-settle : (optional) D-PHY control register; +- csis-wclk : CSI-2 wrapper clock selection. If this property is present + external clock from CMU will be used, or the bus clock if + if it's not specified. + +example: + + mipi_csi: mipi-csi@30750000 { + clock-frequency = <166000000>; + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + compatible = "fsl,imx7-mipi-csi2"; + reg = <0x30750000 0x10000>; + interrupts = ; + clocks = <&clks IMX7D_MIPI_CSI_ROOT_CLK>, + <&clks IMX7D_MIPI_DPHY_ROOT_CLK>; + clock-names = "mipi", "phy"; + power-domains = <&pgc_mipi_phy>; + phy-supply = <®_1p0d>; + resets = <&src IMX7_RESET_MIPI_PHY_MRST>; + reset-names = "mrst"; + bus-width = <4>; + status = "disabled"; + + port@0 { + reg = <0>; + + mipi_from_sensor: endpoint { + remote-endpoint = <&ov2680_to_mipi>; + data-lanes = <1>; + csis-hs-settle = <3>; + csis-clk-settle = <0>; + csis-wclk; + }; + }; + + port@1 { + reg = <1>; + + mipi_vc0_to_csi_mux: endpoint { + remote-endpoint = <&csi_mux_from_mipi_vc0>; + }; + }; + }; + + +csi node +-------- + +This is device node for the CMOS Sensor Interface (CSI) which enables the chip +to connect directly to external CMOS image sensors. + +Required properties: + +- compatible : "fsl,imx7-csi"; +- reg : base address and length of the register set for the device; +- interrupts : should contain CSI interrupt; +- clocks : list of clock specifiers, see + Documentation/devicetree/bindings/clock/clock-bindings.txt for details; +- clock-names : must contain "axi", "mclk" and "dcic" entries, matching + entries in the clock property; + +port node +--------- + +- reg : (required) should be 0 for the sink port; + +example: + + csi: csi@30710000 { + #address-cells = <1>; + #size-cells = <0>; + + compatible = "fsl,imx7-csi"; + reg = <0x30710000 0x10000>; + interrupts = ; + clocks = <&clks IMX7D_CLK_DUMMY>, + <&clks IMX7D_CSI_MCLK_ROOT_CLK>, + <&clks IMX7D_CLK_DUMMY>; + clock-names = "axi", "mclk", "dcic"; + status = "disabled"; + + port@0 { + reg = <0>; + + csi_from_csi_mux: endpoint { + remote-endpoint = <&csi_mux_to_csi>; + }; + }; + };