From: Alice Yuan <alice.yuan@nxp.com>
Document the binding for parallel CSI controller found in i.MX8QXP, i.MX93
and i.MX91 SoCs.
Signed-off-by: Alice Yuan <alice.yuan@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
Change in v2:
- use pcif surfix as Laurent Pinchart's suggest.
- put power-domains into required list
---
.../devicetree/bindings/media/fsl,imx93-pcif.yaml | 109 +++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 110 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/fsl,imx93-pcif.yaml b/Documentation/devicetree/bindings/media/fsl,imx93-pcif.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..ff9a32e0bec1d1bd90d93f45dbd7825d1e12650e
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/fsl,imx93-pcif.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/fsl,imx93-pcif.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX8/9 Parallel Camera Interface
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+description: |
+ This is device node for the Parallel Camera Interface which enables the
+ chip to connect directly to external Parallel CMOS image sensors.
+ Supports up to 80MHz input clock from sensor.
+ Supports the following input data formats
+ - 8-bit/10-bit Camera Sensor Interface (CSI)
+ - 8-bit data port for RGB, YCbCr, and YUV data input
+ - 8-bit/10-bit data ports for Bayer data input
+ Parallel Camera Interface is hooked to the Imaging subsystem via the
+ Pixel Link.
+
+properties:
+ compatible:
+ oneOf:
+ - const: fsl,imx8qxp-pcif
+ - items:
+ - enum:
+ - fsl,imx91-pcif
+ - const: fsl,imx93-pcif
+ - const: fsl,imx93-pcif
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: pixel
+ - const: ipg
+
+ power-domains:
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description:
+ Input port node.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description:
+ Output port node.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - power-domains
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx93-clock.h>
+ #include <dt-bindings/power/fsl,imx93-power.h>
+
+ pcif@4ac10070 {
+ compatible = "fsl,imx93-pcif";
+ reg = <0x4ac10070 0x10>;
+ clocks = <&clk IMX93_CLK_MIPI_CSI_GATE>,
+ <&clk IMX93_CLK_MEDIA_APB>;
+ clock-names = "pixel", "ipg";
+ assigned-clocks = <&clk IMX93_CLK_CAM_PIX>;
+ assigned-clock-parents = <&clk IMX93_CLK_VIDEO_PLL>;
+ assigned-clock-rates = <140000000>;
+ power-domains = <&media_blk_ctrl IMX93_MEDIABLK_PD_MIPI_CSI>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&mt9m114_ep>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ endpoint {
+ remote-endpoint = <&isi_in>;
+ };
+ };
+ };
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 8dc0f6609d1fe2e3eefd50088dbe566d9e107bfa..8ae0667d2bb41fb6a1549bd3b2b33f326cbd1303 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15107,6 +15107,7 @@ L: linux-media@vger.kernel.org
S: Maintained
T: git git://linuxtv.org/media.git
F: Documentation/admin-guide/media/imx7.rst
+F: Documentation/devicetree/bindings/media/fsl,imx93-pcif.yaml
F: Documentation/devicetree/bindings/media/nxp,imx-mipi-csi2.yaml
F: Documentation/devicetree/bindings/media/nxp,imx7-csi.yaml
F: Documentation/devicetree/bindings/media/nxp,imx8mq-mipi-csi2.yaml
--
2.34.1On Thu, Jul 03, 2025 at 02:33:06PM -0400, Frank Li wrote:
> +properties:
> + compatible:
> + oneOf:
> + - const: fsl,imx8qxp-pcif
> + - items:
> + - enum:
> + - fsl,imx91-pcif
> + - const: fsl,imx93-pcif
> + - const: fsl,imx93-pcif
This one should be an enum with imx8qxp.
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 2
> +
> + clock-names:
> + items:
> + - const: pixel
> + - const: ipg
> +
> + power-domains:
> + maxItems: 1
> +
> + ports:
> + $ref: /schemas/graph.yaml#/properties/ports
> +
> + properties:
> + port@0:
> + $ref: /schemas/graph.yaml#/$defs/port-base
Use the properties/port schema instead, you do not have any properties
here (although then question - don't you need anything from video
interfaces?)
> + unevaluatedProperties: false
> + description:
> + Input port node.
> +
> + port@1:
> + $ref: /schemas/graph.yaml#/$defs/port-base
Same here
> + unevaluatedProperties: false
> + description:
> + Output port node.
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - clock-names
> + - power-domains
> + - ports
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/imx93-clock.h>
> + #include <dt-bindings/power/fsl,imx93-power.h>
> +
> + pcif@4ac10070 {
That's a CPI bus from MIPI so cpi@, no?
Best regards,
Krzysztof
On Mon, Jul 07, 2025 at 09:01:48AM +0200, Krzysztof Kozlowski wrote:
> On Thu, Jul 03, 2025 at 02:33:06PM -0400, Frank Li wrote:
> > +properties:
> > + compatible:
> > + oneOf:
> > + - const: fsl,imx8qxp-pcif
> > + - items:
> > + - enum:
> > + - fsl,imx91-pcif
> > + - const: fsl,imx93-pcif
> > + - const: fsl,imx93-pcif
>
> This one should be an enum with imx8qxp.
>
>
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + clocks:
> > + maxItems: 2
> > +
> > + clock-names:
> > + items:
> > + - const: pixel
> > + - const: ipg
> > +
> > + power-domains:
> > + maxItems: 1
> > +
> > + ports:
> > + $ref: /schemas/graph.yaml#/properties/ports
> > +
> > + properties:
> > + port@0:
> > + $ref: /schemas/graph.yaml#/$defs/port-base
>
> Use the properties/port schema instead, you do not have any properties
> here (although then question - don't you need anything from video
> interfaces?)
>
> > + unevaluatedProperties: false
> > + description:
> > + Input port node.
> > +
> > + port@1:
> > + $ref: /schemas/graph.yaml#/$defs/port-base
>
> Same here
>
> > + unevaluatedProperties: false
> > + description:
> > + Output port node.
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - clocks
> > + - clock-names
> > + - power-domains
> > + - ports
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/clock/imx93-clock.h>
> > + #include <dt-bindings/power/fsl,imx93-power.h>
> > +
> > + pcif@4ac10070 {
>
> That's a CPI bus from MIPI so cpi@, no?
It is not MIPI. It is old camera interface, which use D0..7 and VSYNC ...
signal.
So Laurent purpose 'pcif', is it okay?
Frank
>
> Best regards,
> Krzysztof
>
On 07/07/2025 18:12, Frank Li wrote:
>>> +examples:
>>> + - |
>>> + #include <dt-bindings/clock/imx93-clock.h>
>>> + #include <dt-bindings/power/fsl,imx93-power.h>
>>> +
>>> + pcif@4ac10070 {
>>
>> That's a CPI bus from MIPI so cpi@, no?
>
> It is not MIPI. It is old camera interface, which use D0..7 and VSYNC ...
> signal.
Hm? I did not say it is MIPI. MIPI is a organization. I said this is
CPI. pcif is the name of NXP block, not the name of the bus.
Best regards,
Krzysztof
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