linux-kernel - [PATCH 1/2] Add Documentation for Media Device, Video Device, and Synopsys DW MIPI CSI-2 Host

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Message-Id: <160acd0770e0685330ba8e7445423c1d6f34658e.1479132355.git.roliveir@synopsys.com>
Date:   Mon, 14 Nov 2016 14:20:22 +0000
From:   Ramiro Oliveira <Ramiro.Oliveira@...opsys.com>
To:     robh+dt@...nel.org, mark.rutland@....com, mchehab@...nel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Cc:     davem@...emloft.net, gregkh@...uxfoundation.org,
        geert+renesas@...der.be, akpm@...ux-foundation.org,
        linux@...ck-us.net, hverkuil@...all.nl,
        laurent.pinchart+renesas@...asonboard.com, arnd@...db.de,
        sudipm.mukherjee@...il.com, tiffany.lin@...iatek.com,
        minghsiu.tsai@...iatek.com, jean-christophe.trotin@...com,
        andrew-ct.chen@...iatek.com, simon.horman@...ronome.com,
        songjun.wu@...rochip.com, bparrot@...com,
        CARLOS.PALMINHA@...opsys.com, Ramiro.Oliveira@...opsys.com
Subject: [PATCH 1/2] Add Documentation for Media Device, Video Device, and Synopsys DW MIPI CSI-2 Host

Add documentation for Media and Video Device, as well as the DW MIPI CSI-2 
Host.

Signed-off-by: Ramiro Oliveira <roliveir@...opsys.com>
---
 .../devicetree/bindings/media/snps,dw-mipi-csi.txt | 27 ++++++++++++++++++++++
 .../devicetree/bindings/media/snps,plat-ipk.txt    |  9 ++++++++
 .../bindings/media/snps,video-device.txt           | 12 ++++++++++
 3 files changed, 48 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt
 create mode 100644 Documentation/devicetree/bindings/media/snps,plat-ipk.txt
 create mode 100644 Documentation/devicetree/bindings/media/snps,video-device.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 0000000..bec7441
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/snps,dw-mipi-csi.txt
@@ -0,0 +1,27 @@
+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
+- data-lanes    : Number of lanes to be used
+- output-type   : Core output to be used (IPI-> 0 or IDI->1 or BOTH->2)
+- phys, phy-names: List of one PHY specifier and identifier string (as defined
+  in Documentation/devicetree/bindings/phy/phy-bindings.txt).
+
+Optional properties(if in IPI mode):
+- ipi-mode 	: Mode to be used when in IPI(Camera -> 0 or Automatic -> 1)
+- ipi-color-mode: Color depth to be used in IPI (48 bits -> 0 or 16 bits -> 1)
+- ipi-auto-flush: Data auto-flush (1 -> Yes or 0 -> No)
+- virtual-channel: Virtual channel where data is present when in IPI
+
+The per-board settings:
+ - port sub-node describing a single endpoint connected to the dw-mipi-csi
+   as described in video-interfaces.txt[1].
diff --git a/Documentation/devicetree/bindings/media/snps,plat-ipk.txt b/Documentation/devicetree/bindings/media/snps,plat-ipk.txt
new file mode 100644
index 0000000..2d51541
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/snps,plat-ipk.txt
@@ -0,0 +1,9 @@
+Synopsys DesignWare CSI-2 Host IPK Media Device
+
+This Media Device at the moment is not totally functional, however it is a base
+for the future.
+
+Required properties:
+
+- compatible: Must be "snps,plat-ipk".
+
diff --git a/Documentation/devicetree/bindings/media/snps,video-device.txt b/Documentation/devicetree/bindings/media/snps,video-device.txt
new file mode 100644
index 0000000..d467092
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/snps,video-device.txt
@@ -0,0 +1,12 @@
+Synopsys DesignWare CSI-2 Host video device
+
+This driver handles all the video handling part of this platform.
+
+Required properties:
+
+- compatible: Must be "snps,video-device".
+
+- dmas, dma-names: List of one DMA specifier and identifier string (as defined
+  in Documentation/devicetree/bindings/dma/dma.txt) per port. Each port
+  requires a DMA channel with the identifier string set to "port" followed by
+  the port index.
-- 
2.10.2