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Documentation: DT: Add bindings for omap3isp

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Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Sakari Ailus 2015-03-19 01:50:22 +02:00 committed by Tony Lindgren
parent d1f2e5a135
commit 7eec52db36
3 changed files with 94 additions and 0 deletions
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71
Documentation/devicetree/bindings/media/ti,omap3isp.txt Normal file
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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>;
};
};

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MAINTAINERS
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@ -7077,6 +7077,7 @@ OMAP IMAGING SUBSYSTEM (OMAP3 ISP and OMAP4 ISS)
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/

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include/dt-bindings/media/omap3-isp.h Normal file
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/*
* 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__ */