media: dt-bindings: imx7-mipi-csi2: convert bindings to yaml

Convert imx7 mipi csi2 bindings documentation to yaml schema, remove
the textual document and update MAINTAINERS entry.

Signed-off-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Rui Miguel Silva 2020-10-21 23:25:43 +02:00 committed by Mauro Carvalho Chehab
parent 338de94d22
commit 8b7c7828a3
3 changed files with 174 additions and 91 deletions

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Freescale i.MX7 Mipi CSI2
=========================
mipi_csi2 node
--------------
This is the device node for the MIPI CSI-2 receiver core in i.MX7 SoC. It is
compatible with previous version of Samsung D-phy.
Required properties:
- compatible : "fsl,imx7-mipi-csi2";
- reg : base address and length of the register set for the device;
- interrupts : should contain MIPI CSIS interrupt;
- clocks : list of clock specifiers, see
Documentation/devicetree/bindings/clock/clock-bindings.txt for details;
- clock-names : must contain "pclk", "wrap" and "phy" entries, matching
entries in the clock property;
- power-domains : a phandle to the power domain, see
Documentation/devicetree/bindings/power/power_domain.txt for details.
- reset-names : should include following entry "mrst";
- resets : a list of phandle, should contain reset entry of
reset-names;
- phy-supply : from the generic phy bindings, a phandle to a regulator that
provides power to MIPI CSIS core;
Optional properties:
- clock-frequency : The IP's main (system bus) clock frequency in Hz, default
value when this property is not specified is 166 MHz;
- fsl,csis-hs-settle : differential receiver (HS-RX) settle time;
The device node should contain two 'port' child nodes with one child 'endpoint'
node, according to the bindings defined in:
Documentation/devicetree/bindings/ media/video-interfaces.txt.
The following are properties specific to those nodes.
port node
---------
- reg : (required) can take the values 0 or 1, where 0 shall be
related to the sink port and port 1 shall be the source
one;
endpoint node
-------------
- data-lanes : (required) an array specifying active physical MIPI-CSI2
data input lanes and their mapping to logical lanes; this
shall only be applied to port 0 (sink port), the array's
content is unused only its length is meaningful,
in this case the maximum length supported is 2;
example:
mipi_csi: mipi-csi@30750000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,imx7-mipi-csi2";
reg = <0x30750000 0x10000>;
interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX7D_IPG_ROOT_CLK>,
<&clks IMX7D_MIPI_CSI_ROOT_CLK>,
<&clks IMX7D_MIPI_DPHY_ROOT_CLK>;
clock-names = "pclk", "wrap", "phy";
clock-frequency = <166000000>;
power-domains = <&pgc_mipi_phy>;
phy-supply = <&reg_1p0d>;
resets = <&src IMX7_RESET_MIPI_PHY_MRST>;
reset-names = "mrst";
fsl,csis-hs-settle = <3>;
port@0 {
reg = <0>;
mipi_from_sensor: endpoint {
remote-endpoint = <&ov2680_to_mipi>;
data-lanes = <1>;
};
};
port@1 {
reg = <1>;
mipi_vc0_to_csi_mux: endpoint {
remote-endpoint = <&csi_mux_from_mipi_vc0>;
};
};
};

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/media/nxp,imx7-mipi-csi2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP i.MX7 Mipi CSI2
maintainers:
- Rui Miguel Silva <rmfrfs@gmail.com>
description: |
This is the device node for the MIPI CSI-2 receiver core in i.MX7 soc. It is
compatible with previous version of samsung d-phy.
properties:
compatible:
const: fsl,imx7-mipi-csi2
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
minItems: 3
maxItems: 3
clock-names:
items:
- const: pclk
- const: wrap
- const: phy
power-domains:
maxItems: 1
phy-supply:
description:
Phandle to a regulator that provides power to the PHY. This
regulator will be managed during the PHY power on/off sequence.
resets:
maxItems: 1
reset-names:
const: mrst
clock-frequency:
description:
The IP main (system bus) clock frequency in Hertz
default: 166000000
fsl,csis-hs-settle:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Differential receiver (HS-RX) settle time
ports:
type: object
description:
A node containing input and output port nodes with endpoint definitions
as documented in
Documentation/devicetree/bindings/media/video-interfaces.txt
properties:
'#address-cells':
const: 1
'#size-cells':
const: 0
port@0:
type: object
description:
Input port node, single endpoint describing the CSI-2 transmitter.
properties:
reg:
const: 0
endpoint:
type: object
properties:
data-lanes:
$ref: /schemas/types.yaml#/definitions/uint32-array
description: See ../video-interfaces.txt
oneOf:
- items:
- const: 1
- items:
- const: 1
- const: 2
remote-endpoint: true
required:
- data-lanes
- remote-endpoint
additionalProperties: false
additionalProperties: false
port@1:
type: object
description:
Output port node
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- power-domains
- phy-supply
- resets
- reset-names
- ports
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/imx7d-clock.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/reset/imx7-reset.h>
mipi_csi: mipi-csi@30750000 {
compatible = "fsl,imx7-mipi-csi2";
reg = <0x30750000 0x10000>;
interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX7D_IPG_ROOT_CLK>,
<&clks IMX7D_MIPI_CSI_ROOT_CLK>,
<&clks IMX7D_MIPI_DPHY_ROOT_CLK>;
clock-names = "pclk", "wrap", "phy";
clock-frequency = <166000000>;
power-domains = <&pgc_mipi_phy>;
phy-supply = <&reg_1p0d>;
resets = <&src IMX7_RESET_MIPI_PHY_MRST>;
reset-names = "mrst";
fsl,csis-hs-settle = <3>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
mipi_from_sensor: endpoint {
remote-endpoint = <&ov2680_to_mipi>;
data-lanes = <1>;
};
};
port@1 {
reg = <1>;
mipi_vc0_to_csi_mux: endpoint {
remote-endpoint = <&csi_mux_from_mipi_vc0>;
};
};
};
};
...

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@ -10849,8 +10849,8 @@ L: linux-media@vger.kernel.org
S: Maintained
T: git git://linuxtv.org/media_tree.git
F: Documentation/admin-guide/media/imx7.rst
F: Documentation/devicetree/bindings/media/imx7-mipi-csi2.txt
F: Documentation/devicetree/bindings/media/nxp,imx7-csi.yaml
F: Documentation/devicetree/bindings/media/nxp,imx7-mipi-csi2.yaml
F: drivers/staging/media/imx/imx7-media-csi.c
F: drivers/staging/media/imx/imx7-mipi-csis.c