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[98.203.232.209]) by smtp.gmail.com with ESMTPSA id 129sm44456943pgj.26.2016.12.07.10.30.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 07 Dec 2016 10:30:31 -0800 (PST) From: Kevin Hilman To: Hans Verkuil , Laurent Pinchart , Sakari Ailus , linux-media@vger.kernel.org Cc: Sekhar Nori , Axel Haslam , =?UTF-8?q?Bartosz=20Go=C5=82aszewski?= , Alexandre Bailon , David Lechner , Patrick Titiano , linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 4/5] [media] dt-bindings: add TI VPIF documentation Date: Wed, 7 Dec 2016 10:30:24 -0800 Message-Id: <20161207183025.20684-5-khilman@baylibre.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20161207183025.20684-1-khilman@baylibre.com> References: <20161207183025.20684-1-khilman@baylibre.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2016.12.7.182416 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_2000_2999 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, CHILD_EX_X3 0, DATE_TZ_NA 0, DKIM_SIGNATURE 0, IN_REP_TO 0, LEGITIMATE_NEGATE 0, LEGITIMATE_SIGNS 0, MSG_THREAD 0, MULTIPLE_REAL_RCPTS 0, NO_URI_HTTPS 0, REFERENCES 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CC_NAME 0, __CC_NAME_DIFF_FROM_ACC 0, __CC_REAL_NAMES 0, __CP_MEDIA_BODY 0, __CP_NAME_BODY 0, __CP_URI_IN_BODY 0, __CTE 0, __FRAUD_COMMON 0, __FRAUD_REFNUM 0, __FROM_DOMAIN_IN_ANY_CC2 0, __FROM_DOMAIN_IN_RCPT 0, __HAS_CC_HDR 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MAL_TELEKOM_URI 0, __MIME_TEXT_ONLY 0, __MIME_TEXT_P 0, __MIME_TEXT_P1 0, __MIME_VERSION 0, __MULTIPLE_RCPTS_CC_X2 0, __MULTIPLE_URI_TEXT 0, __NO_HTML_TAG_RAW 0, __REFERENCES 0, __SANE_MSGID 0, __TO_MALFORMED_2 0, __TO_NAME 0, __TO_NAME_DIFF_FROM_ACC 0, __TO_REAL_NAMES 0, __URI_IN_BODY 0, __URI_NS , __URI_WITH_PATH 0, __YOUTUBE_RCVD 0' Acked-by: Rob Herring Reviewed-by: Laurent Pinchart Signed-off-by: Kevin Hilman --- .../devicetree/bindings/media/ti,da850-vpif.txt | 83 ++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/ti,da850-vpif.txt diff --git a/Documentation/devicetree/bindings/media/ti,da850-vpif.txt b/Documentation/devicetree/bindings/media/ti,da850-vpif.txt new file mode 100644 index 000000000000..6d25d7f23d26 --- /dev/null +++ b/Documentation/devicetree/bindings/media/ti,da850-vpif.txt @@ -0,0 +1,83 @@ +Texas Instruments VPIF +---------------------- + +The TI Video Port InterFace (VPIF) is the primary component for video +capture and display on the DA850/AM18x family of TI DaVinci/Sitara +SoCs. + +TI Document reference: SPRUH82C, Chapter 35 +http://www.ti.com/lit/pdf/spruh82 + +Required properties: +- compatible: must be "ti,da850-vpif" +- reg: physical base address and length of the registers set for the device; +- interrupts: should contain IRQ line for the VPIF + +Video Capture: + +VPIF has a 16-bit parallel bus input, supporting 2 8-bit channels or a +single 16-bit channel. It should contain at least one port child node +with child 'endpoint' node. Please refer to the bindings defined in +Documentation/devicetree/bindings/media/video-interfaces.txt. + +Example using 2 8-bit input channels, one of which is connected to an +I2C-connected TVP5147 decoder: + + vpif: vpif@217000 { + compatible = "ti,da850-vpif"; + reg = <0x217000 0x1000>; + interrupts = <92>; + + port { + vpif_ch0: endpoint@0 { + reg = <0>; + bus-width = <8>; + remote-endpoint = <&composite>; + }; + + vpif_ch1: endpoint@1 { + reg = <1>; + bus-width = <8>; + data-shift = <8>; + }; + }; + }; + +[ ... ] + +&i2c0 { + + tvp5147@5d { + compatible = "ti,tvp5147"; + reg = <0x5d>; + status = "okay"; + + port { + composite: endpoint { + hsync-active = <1>; + vsync-active = <1>; + pclk-sample = <0>; + + /* VPIF channel 0 (lower 8-bits) */ + remote-endpoint = <&vpif_ch0>; + bus-width = <8>; + }; + }; + }; +}; + + +Alternatively, an example when the bus is configured as a single +16-bit input (e.g. for raw-capture mode): + + vpif: vpif@217000 { + compatible = "ti,da850-vpif"; + reg = <0x217000 0x1000>; + interrupts = <92>; + + port { + vpif_ch0: endpoint { + bus-width = <16>; + }; + }; + };