From: Kevin Hilman <khilman@baylibre.com>
To: Hans Verkuil <hverkuil@xs4all.nl>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Sakari Ailus <sakari.ailus@iki.fi>,
linux-media@vger.kernel.org
Cc: "Sekhar Nori" <nsekhar@ti.com>,
"Axel Haslam" <ahaslam@baylibre.com>,
"Bartosz Gołaszewski" <bgolaszewski@baylibre.com>,
"Alexandre Bailon" <abailon@baylibre.com>,
"David Lechner" <david@lechnology.com>,
"Patrick Titiano" <ptitiano@baylibre.com>,
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 [thread overview]
Message-ID: <20161207183025.20684-5-khilman@baylibre.com> (raw)
In-Reply-To: <20161207183025.20684-1-khilman@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
---
.../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>;
+ };
+ };
+ };
--
2.9.3
next prev parent reply other threads:[~2016-12-07 18:30 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-07 18:30 [PATCH v6 0/5] davinci: VPIF: add DT support Kevin Hilman
2016-12-07 18:30 ` [PATCH v6 1/5] [media] davinci: VPIF: fix module loading, init errors Kevin Hilman
2016-12-09 10:07 ` Sakari Ailus
2016-12-16 9:44 ` Hans Verkuil
2016-12-16 23:39 ` Kevin Hilman
2016-12-17 0:47 ` [PATCH v6.1 " Kevin Hilman
2016-12-07 18:30 ` [PATCH v6 2/5] [media] davinci: vpif_capture: remove hard-coded I2C adapter id Kevin Hilman
2016-12-09 10:20 ` Sakari Ailus
2016-12-07 18:30 ` [PATCH v6 3/5] [media] davinci: vpif_capture: fix start/stop streaming locking Kevin Hilman
2016-12-07 18:30 ` Kevin Hilman [this message]
2016-12-07 18:30 ` [PATCH v6 5/5] [media] davinci: VPIF: add basic support for DT init Kevin Hilman
2016-12-07 20:03 ` [PATCH v6 0/5] davinci: VPIF: add DT support Javier Martinez Canillas
2016-12-09 0:25 ` Kevin Hilman
2016-12-16 9:47 ` Hans Verkuil
2016-12-17 0:49 ` Kevin Hilman
2017-01-27 17:22 ` Kevin Hilman
2017-01-30 9:33 ` Hans Verkuil
2017-01-03 9:03 ` Sekhar Nori
2017-01-03 9:12 ` Laurent Pinchart
2017-01-04 11:32 ` Sekhar Nori
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