Documentation: DT: Add bindings for omap3isp

OMAP 3 ISP Device Tree bindings

===============================

The DT definitions can be found in include/dt-bindings/media/omap3-isp.h.

Required properties

===================

compatible	: must contain "ti,omap3-isp"

reg		: the two registers sets (physical address and length) for the

		  ISP. The first set contains the core ISP registers up to

		  the end of the SBL block. The second set contains the

		  CSI PHYs and receivers registers.

interrupts	: the ISP interrupt specifier

iommus		: phandle and IOMMU specifier for the IOMMU that serves the ISP

syscon		: the phandle and register offset to the Complex I/O or CSI-PHY

		  register

ti,phy-type	: 0 -- OMAP3ISP_PHY_TYPE_COMPLEX_IO (e.g. 3430)

		  1 -- OMAP3ISP_PHY_TYPE_CSIPHY (e.g. 3630)

#clock-cells	: Must be 1 --- the ISP provides two external clocks,

		  cam_xclka and cam_xclkb, at indices 0 and 1,

		  respectively. Please find more information on common

		  clock bindings in ../clock/clock-bindings.txt.

Port nodes (optional)

---------------------

More documentation on these bindings is available in

video-interfaces.txt in the same directory.

reg		: The interface:

		  0 - parallel (CCDC)

		  1 - CSIPHY1 -- CSI2C / CCP2B on 3630;

		      CSI1 -- CSIb on 3430

		  2 - CSIPHY2 -- CSI2A / CCP2B on 3630;

		      CSI2 -- CSIa on 3430

Optional properties

===================

vdd-csiphy1-supply : voltage supply of the CSI-2 PHY 1

vdd-csiphy2-supply : voltage supply of the CSI-2 PHY 2

Endpoint nodes

--------------

lane-polarities	: lane polarity (required on CSI-2)

		  0 -- not inverted; 1 -- inverted

data-lanes	: an array of data lanes from 1 to 3. The length can

		  be either 1 or 2. (required on CSI-2)

clock-lanes	: the clock lane (from 1 to 3). (required on CSI-2)

Example

=======

		isp@480bc000 {

			compatible = "ti,omap3-isp";

			reg = <0x480bc000 0x12fc

			       0x480bd800 0x0600>;

			interrupts = <24>;

			iommus = <&mmu_isp>;

			syscon = <&scm_conf 0x2f0>;

			ti,phy-type = <OMAP3ISP_PHY_TYPE_CSIPHY>;

			#clock-cells = <1>;

			ports {

				#address-cells = <1>;

				#size-cells = <0>;

			};

		};

M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>

L:	linux-media@vger.kernel.org

S:	Maintained

F:	Documentation/devicetree/bindings/media/ti,omap3isp.txt

F:	drivers/media/platform/omap3isp/

F:	drivers/staging/media/omap4iss/

/*

 * include/dt-bindings/media/omap3-isp.h

 *

 * Copyright (C) 2015 Sakari Ailus

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 */

#ifndef __DT_BINDINGS_OMAP3_ISP_H__

#define __DT_BINDINGS_OMAP3_ISP_H__

#define OMAP3ISP_PHY_TYPE_COMPLEX_IO	0

#define OMAP3ISP_PHY_TYPE_CSIPHY	1

#endif /* __DT_BINDINGS_OMAP3_ISP_H__ */