linux-kernel - [PATCH 1/4] Documentation: dt: Add bindings documentation for DW MIPI CSI-2 Host

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Message-Id: <3478bf7c84fd8c8bdcff4f0170ee0344eca13f60.1488885081.git.roliveir@synopsys.com>
Date:   Tue,  7 Mar 2017 14:37:48 +0000
From:   Ramiro Oliveira <Ramiro.Oliveira@...opsys.com>
To:     linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     CARLOS.PALMINHA@...opsys.com,
        Ramiro Oliveira <Ramiro.Oliveira@...opsys.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>, Benoit Parrot <bparrot@...com>,
        "David S. Miller" <davem@...emloft.net>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Hugues Fruchet <hugues.fruchet@...com>,
        Jean-Christophe Trotin <jean-christophe.trotin@...com>,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        Mark Rutland <mark.rutland@....com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Minghsiu Tsai <minghsiu.tsai@...iatek.com>,
        Peter Griffin <peter.griffin@...aro.org>,
        Rick Chang <rick.chang@...iatek.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Rob Herring <robh+dt@...nel.org>,
        Simon Horman <simon.horman@...ronome.com>,
        Songjun Wu <songjun.wu@...rochip.com>,
        Tiffany Lin <tiffany.lin@...iatek.com>
Subject: [PATCH 1/4] Documentation: dt: Add bindings documentation for DW MIPI CSI-2 Host

Create device tree bindings documentation for the Synopsys DW MIPI CSI-2
 Host.

Signed-off-by: Ramiro Oliveira <roliveir@...opsys.com>
---
 .../devicetree/bindings/media/snps,dw-mipi-csi.txt | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt

diff --git a/Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt b/Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt
new file mode 100644
index 000000000000..5b24eb43d760
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt
@@ -0,0 +1,37 @@
+Synopsys DesignWare CSI-2 Host controller
+
+Description
+-----------
+
+This HW block is used to receive image coming from an MIPI CSI-2 compatible
+camera.
+
+Required properties:
+- compatible: shall be "snps,dw-mipi-csi"
+- reg		: physical base address and size of the device memory mapped
+  registers;
+- interrupts	: CSI-2 Host interrupt
+- output-type   : Core output to be used (IPI-> 0 or IDI->1 or BOTH->2) These
+  values choose which of the Core outputs will be used, it can be Image Data
+  Interface or Image Pixel Interface.
+- phys: List of one PHY specifier (as defined in
+  Documentation/devicetree/bindings/phy/phy-bindings.txt). This PHY is a MIPI
+  DPHY working in RX mode.
+- resets: Reference to a reset controller (optional)
+
+Optional properties(if in IPI mode):
+- ipi-mode 	: Mode to be used when in IPI(Camera -> 0 or Controller -> 1)
+  This property defines if the controller will use the video timings available
+  in the video stream or if it will use pre-defined ones.
+- ipi-color-mode: Bus depth to be used in IPI (48 bits -> 0 or 16 bits -> 1)
+  This property defines the width of the IPI bus.
+- ipi-auto-flush: Data auto-flush (1 -> Yes or 0 -> No). This property defines
+  if the data is automatically flushed in each vsync or if this process is done
+  manually
+- virtual-channel: Virtual channel where data is present when in IPI mode. This
+  property chooses the virtual channel which IPI will use to retrieve the video
+  stream.
+
+The per-board settings:
+ - port sub-node describing a single endpoint connected to the camera as
+   described in video-interfaces.txt[1].
-- 
2.11.0