* [PATCH] dt-bindings: mfd: fsl,imx8qxp-csr: Remove binding documentation
@ 2025-06-18 9:13 Liu Ying
2025-06-18 16:51 ` Frank Li
0 siblings, 1 reply; 3+ messages in thread
From: Liu Ying @ 2025-06-18 9:13 UTC (permalink / raw)
To: devicetree, imx, linux-arm-kernel, linux-kernel
Cc: robh, krzk+dt, conor+dt, shawnguo, s.hauer, kernel, festevam, lee,
victor.liu, gregkh
commit b0a5cde57cf1 ("dt-bindings: mfd: Explain lack of child dependency
in simple-mfd") pointed out that it's a mistake for a child device of
a simple MFD device to depend on the simple MFD device's clock resources.
fsl,imx8qxp-csr.yaml happens to make that mistake. To fix that, remove
fsl,imx8qxp-csr.yaml and use "simple-pm-bus" and "syscon" as compatible
strings in the examples of fsl,imx8qxp-pixel-link-msi-bus.yaml.
Fixes: 9b2c55b5403f ("dt-bindings: mfd: Add i.MX8qm/qxp Control and Status Registers module binding")
Fixes: c08645ea215c ("dt-bindings: bus: Add Freescale i.MX8qxp pixel link MSI bus binding")
Signed-off-by: Liu Ying <victor.liu@nxp.com>
---
.../bus/fsl,imx8qxp-pixel-link-msi-bus.yaml | 7 +-
.../bindings/mfd/fsl,imx8qxp-csr.yaml | 192 ------------------
2 files changed, 5 insertions(+), 194 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
diff --git a/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml b/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
index 7e1ffc551046..4adbb7afa889 100644
--- a/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
+++ b/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
@@ -103,11 +103,14 @@ examples:
clock-names = "msi", "ahb";
power-domains = <&pd IMX_SC_R_DC_0>;
- syscon@56221000 {
- compatible = "fsl,imx8qxp-mipi-lvds-csr", "syscon", "simple-mfd";
+ bus@56221000 {
+ compatible = "simple-pm-bus", "syscon";
reg = <0x56221000 0x1000>;
clocks = <&mipi_lvds_0_di_mipi_lvds_regs_lpcg IMX_LPCG_CLK_4>;
clock-names = "ipg";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
pxl2dpi {
compatible = "fsl,imx8qxp-pxl2dpi";
diff --git a/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml b/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
deleted file mode 100644
index 20067002cc4a..000000000000
--- a/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
+++ /dev/null
@@ -1,192 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/mfd/fsl,imx8qxp-csr.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Freescale i.MX8qm/qxp Control and Status Registers Module
-
-maintainers:
- - Liu Ying <victor.liu@nxp.com>
-
-description: |
- As a system controller, the Freescale i.MX8qm/qxp Control and Status
- Registers(CSR) module represents a set of miscellaneous registers of a
- specific subsystem. It may provide control and/or status report interfaces
- to a mix of standalone hardware devices within that subsystem. One typical
- use-case is for some other nodes to acquire a reference to the syscon node
- by phandle, and the other typical use-case is that the operating system
- should consider all subnodes of the CSR module as separate child devices.
-
-properties:
- $nodename:
- pattern: "^syscon@[0-9a-f]+$"
-
- compatible:
- items:
- - enum:
- - fsl,imx8qxp-mipi-lvds-csr
- - fsl,imx8qm-lvds-csr
- - const: syscon
- - const: simple-mfd
-
- reg:
- maxItems: 1
-
- clocks:
- maxItems: 1
-
- clock-names:
- const: ipg
-
-patternProperties:
- "^(ldb|phy|pxl2dpi)$":
- type: object
- description: The possible child devices of the CSR module.
-
-required:
- - compatible
- - reg
- - clocks
- - clock-names
-
-allOf:
- - if:
- properties:
- compatible:
- contains:
- const: fsl,imx8qxp-mipi-lvds-csr
- then:
- required:
- - pxl2dpi
- - ldb
-
- - if:
- properties:
- compatible:
- contains:
- const: fsl,imx8qm-lvds-csr
- then:
- required:
- - phy
- - ldb
-
-additionalProperties: false
-
-examples:
- - |
- #include <dt-bindings/clock/imx8-lpcg.h>
- #include <dt-bindings/firmware/imx/rsrc.h>
- mipi_lvds_0_csr: syscon@56221000 {
- compatible = "fsl,imx8qxp-mipi-lvds-csr", "syscon", "simple-mfd";
- reg = <0x56221000 0x1000>;
- clocks = <&mipi_lvds_0_di_mipi_lvds_regs_lpcg IMX_LPCG_CLK_4>;
- clock-names = "ipg";
-
- mipi_lvds_0_pxl2dpi: pxl2dpi {
- compatible = "fsl,imx8qxp-pxl2dpi";
- fsl,sc-resource = <IMX_SC_R_MIPI_0>;
- power-domains = <&pd IMX_SC_R_MIPI_0>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- mipi_lvds_0_pxl2dpi_dc0_pixel_link0: endpoint@0 {
- reg = <0>;
- remote-endpoint = <&dc0_pixel_link0_mipi_lvds_0_pxl2dpi>;
- };
-
- mipi_lvds_0_pxl2dpi_dc0_pixel_link1: endpoint@1 {
- reg = <1>;
- remote-endpoint = <&dc0_pixel_link1_mipi_lvds_0_pxl2dpi>;
- };
- };
-
- port@1 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
-
- mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0: endpoint@0 {
- reg = <0>;
- remote-endpoint = <&mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi>;
- };
-
- mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1: endpoint@1 {
- reg = <1>;
- remote-endpoint = <&mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi>;
- };
- };
- };
- };
-
- mipi_lvds_0_ldb: ldb {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,imx8qxp-ldb";
- clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_MISC2>,
- <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_BYPASS>;
- clock-names = "pixel", "bypass";
- power-domains = <&pd IMX_SC_R_LVDS_0>;
-
- channel@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
- phys = <&mipi_lvds_0_phy>;
- phy-names = "lvds_phy";
-
- port@0 {
- reg = <0>;
-
- mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi: endpoint {
- remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0>;
- };
- };
-
- port@1 {
- reg = <1>;
-
- /* ... */
- };
- };
-
- channel@1 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
- phys = <&mipi_lvds_0_phy>;
- phy-names = "lvds_phy";
-
- port@0 {
- reg = <0>;
-
- mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi: endpoint {
- remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1>;
- };
- };
-
- port@1 {
- reg = <1>;
-
- /* ... */
- };
- };
- };
- };
-
- mipi_lvds_0_phy: phy@56228300 {
- compatible = "fsl,imx8qxp-mipi-dphy";
- reg = <0x56228300 0x100>;
- clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_PHY>;
- clock-names = "phy_ref";
- #phy-cells = <0>;
- fsl,syscon = <&mipi_lvds_0_csr>;
- power-domains = <&pd IMX_SC_R_MIPI_0>;
- };
--
2.34.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] dt-bindings: mfd: fsl,imx8qxp-csr: Remove binding documentation
2025-06-18 9:13 [PATCH] dt-bindings: mfd: fsl,imx8qxp-csr: Remove binding documentation Liu Ying
@ 2025-06-18 16:51 ` Frank Li
2025-06-19 2:29 ` Liu Ying
0 siblings, 1 reply; 3+ messages in thread
From: Frank Li @ 2025-06-18 16:51 UTC (permalink / raw)
To: Liu Ying
Cc: devicetree, imx, linux-arm-kernel, linux-kernel, robh, krzk+dt,
conor+dt, shawnguo, s.hauer, kernel, festevam, lee, gregkh
On Wed, Jun 18, 2025 at 05:13:14PM +0800, Liu Ying wrote:
> commit b0a5cde57cf1 ("dt-bindings: mfd: Explain lack of child dependency
> in simple-mfd") pointed out that it's a mistake for a child device f
> a simple MFD device to depend on the simple MFD device's clock resources.
> fsl,imx8qxp-csr.yaml happens to make that mistake. To fix that, remove
> fsl,imx8qxp-csr.yaml and use "simple-pm-bus" and "syscon" as compatible
> strings in the examples of fsl,imx8qxp-pixel-link-msi-bus.yaml.
Does anyone use fsl,imx8qxp-mipi-lvds-csr/fsl,imx8qm-lvds-csr? I suppose
yes. It'd better said no one use these in dts and safe to remove.
Frank
>
> Fixes: 9b2c55b5403f ("dt-bindings: mfd: Add i.MX8qm/qxp Control and Status Registers module binding")
> Fixes: c08645ea215c ("dt-bindings: bus: Add Freescale i.MX8qxp pixel link MSI bus binding")
> Signed-off-by: Liu Ying <victor.liu@nxp.com>
> ---
> .../bus/fsl,imx8qxp-pixel-link-msi-bus.yaml | 7 +-
> .../bindings/mfd/fsl,imx8qxp-csr.yaml | 192 ------------------
> 2 files changed, 5 insertions(+), 194 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
>
> diff --git a/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml b/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
> index 7e1ffc551046..4adbb7afa889 100644
> --- a/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
> +++ b/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
> @@ -103,11 +103,14 @@ examples:
> clock-names = "msi", "ahb";
> power-domains = <&pd IMX_SC_R_DC_0>;
>
> - syscon@56221000 {
> - compatible = "fsl,imx8qxp-mipi-lvds-csr", "syscon", "simple-mfd";
> + bus@56221000 {
> + compatible = "simple-pm-bus", "syscon";
> reg = <0x56221000 0x1000>;
> clocks = <&mipi_lvds_0_di_mipi_lvds_regs_lpcg IMX_LPCG_CLK_4>;
> clock-names = "ipg";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
>
> pxl2dpi {
> compatible = "fsl,imx8qxp-pxl2dpi";
> diff --git a/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml b/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
> deleted file mode 100644
> index 20067002cc4a..000000000000
> --- a/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
> +++ /dev/null
> @@ -1,192 +0,0 @@
> -# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> -%YAML 1.2
> ----
> -$id: http://devicetree.org/schemas/mfd/fsl,imx8qxp-csr.yaml#
> -$schema: http://devicetree.org/meta-schemas/core.yaml#
> -
> -title: Freescale i.MX8qm/qxp Control and Status Registers Module
> -
> -maintainers:
> - - Liu Ying <victor.liu@nxp.com>
> -
> -description: |
> - As a system controller, the Freescale i.MX8qm/qxp Control and Status
> - Registers(CSR) module represents a set of miscellaneous registers of a
> - specific subsystem. It may provide control and/or status report interfaces
> - to a mix of standalone hardware devices within that subsystem. One typical
> - use-case is for some other nodes to acquire a reference to the syscon node
> - by phandle, and the other typical use-case is that the operating system
> - should consider all subnodes of the CSR module as separate child devices.
> -
> -properties:
> - $nodename:
> - pattern: "^syscon@[0-9a-f]+$"
> -
> - compatible:
> - items:
> - - enum:
> - - fsl,imx8qxp-mipi-lvds-csr
> - - fsl,imx8qm-lvds-csr
> - - const: syscon
> - - const: simple-mfd
> -
> - reg:
> - maxItems: 1
> -
> - clocks:
> - maxItems: 1
> -
> - clock-names:
> - const: ipg
> -
> -patternProperties:
> - "^(ldb|phy|pxl2dpi)$":
> - type: object
> - description: The possible child devices of the CSR module.
> -
> -required:
> - - compatible
> - - reg
> - - clocks
> - - clock-names
> -
> -allOf:
> - - if:
> - properties:
> - compatible:
> - contains:
> - const: fsl,imx8qxp-mipi-lvds-csr
> - then:
> - required:
> - - pxl2dpi
> - - ldb
> -
> - - if:
> - properties:
> - compatible:
> - contains:
> - const: fsl,imx8qm-lvds-csr
> - then:
> - required:
> - - phy
> - - ldb
> -
> -additionalProperties: false
> -
> -examples:
> - - |
> - #include <dt-bindings/clock/imx8-lpcg.h>
> - #include <dt-bindings/firmware/imx/rsrc.h>
> - mipi_lvds_0_csr: syscon@56221000 {
> - compatible = "fsl,imx8qxp-mipi-lvds-csr", "syscon", "simple-mfd";
> - reg = <0x56221000 0x1000>;
> - clocks = <&mipi_lvds_0_di_mipi_lvds_regs_lpcg IMX_LPCG_CLK_4>;
> - clock-names = "ipg";
> -
> - mipi_lvds_0_pxl2dpi: pxl2dpi {
> - compatible = "fsl,imx8qxp-pxl2dpi";
> - fsl,sc-resource = <IMX_SC_R_MIPI_0>;
> - power-domains = <&pd IMX_SC_R_MIPI_0>;
> -
> - ports {
> - #address-cells = <1>;
> - #size-cells = <0>;
> -
> - port@0 {
> - #address-cells = <1>;
> - #size-cells = <0>;
> - reg = <0>;
> -
> - mipi_lvds_0_pxl2dpi_dc0_pixel_link0: endpoint@0 {
> - reg = <0>;
> - remote-endpoint = <&dc0_pixel_link0_mipi_lvds_0_pxl2dpi>;
> - };
> -
> - mipi_lvds_0_pxl2dpi_dc0_pixel_link1: endpoint@1 {
> - reg = <1>;
> - remote-endpoint = <&dc0_pixel_link1_mipi_lvds_0_pxl2dpi>;
> - };
> - };
> -
> - port@1 {
> - #address-cells = <1>;
> - #size-cells = <0>;
> - reg = <1>;
> -
> - mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0: endpoint@0 {
> - reg = <0>;
> - remote-endpoint = <&mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi>;
> - };
> -
> - mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1: endpoint@1 {
> - reg = <1>;
> - remote-endpoint = <&mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi>;
> - };
> - };
> - };
> - };
> -
> - mipi_lvds_0_ldb: ldb {
> - #address-cells = <1>;
> - #size-cells = <0>;
> - compatible = "fsl,imx8qxp-ldb";
> - clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_MISC2>,
> - <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_BYPASS>;
> - clock-names = "pixel", "bypass";
> - power-domains = <&pd IMX_SC_R_LVDS_0>;
> -
> - channel@0 {
> - #address-cells = <1>;
> - #size-cells = <0>;
> - reg = <0>;
> - phys = <&mipi_lvds_0_phy>;
> - phy-names = "lvds_phy";
> -
> - port@0 {
> - reg = <0>;
> -
> - mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi: endpoint {
> - remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0>;
> - };
> - };
> -
> - port@1 {
> - reg = <1>;
> -
> - /* ... */
> - };
> - };
> -
> - channel@1 {
> - #address-cells = <1>;
> - #size-cells = <0>;
> - reg = <1>;
> - phys = <&mipi_lvds_0_phy>;
> - phy-names = "lvds_phy";
> -
> - port@0 {
> - reg = <0>;
> -
> - mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi: endpoint {
> - remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1>;
> - };
> - };
> -
> - port@1 {
> - reg = <1>;
> -
> - /* ... */
> - };
> - };
> - };
> - };
> -
> - mipi_lvds_0_phy: phy@56228300 {
> - compatible = "fsl,imx8qxp-mipi-dphy";
> - reg = <0x56228300 0x100>;
> - clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_PHY>;
> - clock-names = "phy_ref";
> - #phy-cells = <0>;
> - fsl,syscon = <&mipi_lvds_0_csr>;
> - power-domains = <&pd IMX_SC_R_MIPI_0>;
> - };
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] dt-bindings: mfd: fsl,imx8qxp-csr: Remove binding documentation
2025-06-18 16:51 ` Frank Li
@ 2025-06-19 2:29 ` Liu Ying
0 siblings, 0 replies; 3+ messages in thread
From: Liu Ying @ 2025-06-19 2:29 UTC (permalink / raw)
To: Frank Li
Cc: devicetree, imx, linux-arm-kernel, linux-kernel, robh, krzk+dt,
conor+dt, shawnguo, s.hauer, kernel, festevam, lee, gregkh
On 06/19/2025, Frank Li wrote:
> On Wed, Jun 18, 2025 at 05:13:14PM +0800, Liu Ying wrote:
>> commit b0a5cde57cf1 ("dt-bindings: mfd: Explain lack of child dependency
>> in simple-mfd") pointed out that it's a mistake for a child device of
>> a simple MFD device to depend on the simple MFD device's clock resources.
>> fsl,imx8qxp-csr.yaml happens to make that mistake. To fix that, remove
>> fsl,imx8qxp-csr.yaml and use "simple-pm-bus" and "syscon" as compatible
>> strings in the examples of fsl,imx8qxp-pixel-link-msi-bus.yaml.
>
> Does anyone use fsl,imx8qxp-mipi-lvds-csr/fsl,imx8qm-lvds-csr? I suppose
> yes. It'd better said no one use these in dts and safe to remove.
After this patch removes "fsl,imx8qxp-mipi-lvds-csr" from
fsl,imx8qxp-pixel-link-msi-bus.yaml, there is no user. I may mention this
in commit message of next version.
>
> Frank
>>
>> Fixes: 9b2c55b5403f ("dt-bindings: mfd: Add i.MX8qm/qxp Control and Status Registers module binding")
>> Fixes: c08645ea215c ("dt-bindings: bus: Add Freescale i.MX8qxp pixel link MSI bus binding")
>> Signed-off-by: Liu Ying <victor.liu@nxp.com>
>> ---
>> .../bus/fsl,imx8qxp-pixel-link-msi-bus.yaml | 7 +-
>> .../bindings/mfd/fsl,imx8qxp-csr.yaml | 192 ------------------
>> 2 files changed, 5 insertions(+), 194 deletions(-)
>> delete mode 100644 Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml b/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
>> index 7e1ffc551046..4adbb7afa889 100644
>> --- a/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
>> +++ b/Documentation/devicetree/bindings/bus/fsl,imx8qxp-pixel-link-msi-bus.yaml
>> @@ -103,11 +103,14 @@ examples:
>> clock-names = "msi", "ahb";
>> power-domains = <&pd IMX_SC_R_DC_0>;
>>
>> - syscon@56221000 {
>> - compatible = "fsl,imx8qxp-mipi-lvds-csr", "syscon", "simple-mfd";
>> + bus@56221000 {
>> + compatible = "simple-pm-bus", "syscon";
>> reg = <0x56221000 0x1000>;
>> clocks = <&mipi_lvds_0_di_mipi_lvds_regs_lpcg IMX_LPCG_CLK_4>;
>> clock-names = "ipg";
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>>
>> pxl2dpi {
>> compatible = "fsl,imx8qxp-pxl2dpi";
>> diff --git a/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml b/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
>> deleted file mode 100644
>> index 20067002cc4a..000000000000
>> --- a/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
>> +++ /dev/null
>> @@ -1,192 +0,0 @@
>> -# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> -%YAML 1.2
>> ----
>> -$id: http://devicetree.org/schemas/mfd/fsl,imx8qxp-csr.yaml#
>> -$schema: http://devicetree.org/meta-schemas/core.yaml#
>> -
>> -title: Freescale i.MX8qm/qxp Control and Status Registers Module
>> -
>> -maintainers:
>> - - Liu Ying <victor.liu@nxp.com>
>> -
>> -description: |
>> - As a system controller, the Freescale i.MX8qm/qxp Control and Status
>> - Registers(CSR) module represents a set of miscellaneous registers of a
>> - specific subsystem. It may provide control and/or status report interfaces
>> - to a mix of standalone hardware devices within that subsystem. One typical
>> - use-case is for some other nodes to acquire a reference to the syscon node
>> - by phandle, and the other typical use-case is that the operating system
>> - should consider all subnodes of the CSR module as separate child devices.
>> -
>> -properties:
>> - $nodename:
>> - pattern: "^syscon@[0-9a-f]+$"
>> -
>> - compatible:
>> - items:
>> - - enum:
>> - - fsl,imx8qxp-mipi-lvds-csr
>> - - fsl,imx8qm-lvds-csr
>> - - const: syscon
>> - - const: simple-mfd
>> -
>> - reg:
>> - maxItems: 1
>> -
>> - clocks:
>> - maxItems: 1
>> -
>> - clock-names:
>> - const: ipg
>> -
>> -patternProperties:
>> - "^(ldb|phy|pxl2dpi)$":
>> - type: object
>> - description: The possible child devices of the CSR module.
>> -
>> -required:
>> - - compatible
>> - - reg
>> - - clocks
>> - - clock-names
>> -
>> -allOf:
>> - - if:
>> - properties:
>> - compatible:
>> - contains:
>> - const: fsl,imx8qxp-mipi-lvds-csr
>> - then:
>> - required:
>> - - pxl2dpi
>> - - ldb
>> -
>> - - if:
>> - properties:
>> - compatible:
>> - contains:
>> - const: fsl,imx8qm-lvds-csr
>> - then:
>> - required:
>> - - phy
>> - - ldb
>> -
>> -additionalProperties: false
>> -
>> -examples:
>> - - |
>> - #include <dt-bindings/clock/imx8-lpcg.h>
>> - #include <dt-bindings/firmware/imx/rsrc.h>
>> - mipi_lvds_0_csr: syscon@56221000 {
>> - compatible = "fsl,imx8qxp-mipi-lvds-csr", "syscon", "simple-mfd";
>> - reg = <0x56221000 0x1000>;
>> - clocks = <&mipi_lvds_0_di_mipi_lvds_regs_lpcg IMX_LPCG_CLK_4>;
>> - clock-names = "ipg";
>> -
>> - mipi_lvds_0_pxl2dpi: pxl2dpi {
>> - compatible = "fsl,imx8qxp-pxl2dpi";
>> - fsl,sc-resource = <IMX_SC_R_MIPI_0>;
>> - power-domains = <&pd IMX_SC_R_MIPI_0>;
>> -
>> - ports {
>> - #address-cells = <1>;
>> - #size-cells = <0>;
>> -
>> - port@0 {
>> - #address-cells = <1>;
>> - #size-cells = <0>;
>> - reg = <0>;
>> -
>> - mipi_lvds_0_pxl2dpi_dc0_pixel_link0: endpoint@0 {
>> - reg = <0>;
>> - remote-endpoint = <&dc0_pixel_link0_mipi_lvds_0_pxl2dpi>;
>> - };
>> -
>> - mipi_lvds_0_pxl2dpi_dc0_pixel_link1: endpoint@1 {
>> - reg = <1>;
>> - remote-endpoint = <&dc0_pixel_link1_mipi_lvds_0_pxl2dpi>;
>> - };
>> - };
>> -
>> - port@1 {
>> - #address-cells = <1>;
>> - #size-cells = <0>;
>> - reg = <1>;
>> -
>> - mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0: endpoint@0 {
>> - reg = <0>;
>> - remote-endpoint = <&mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi>;
>> - };
>> -
>> - mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1: endpoint@1 {
>> - reg = <1>;
>> - remote-endpoint = <&mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi>;
>> - };
>> - };
>> - };
>> - };
>> -
>> - mipi_lvds_0_ldb: ldb {
>> - #address-cells = <1>;
>> - #size-cells = <0>;
>> - compatible = "fsl,imx8qxp-ldb";
>> - clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_MISC2>,
>> - <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_BYPASS>;
>> - clock-names = "pixel", "bypass";
>> - power-domains = <&pd IMX_SC_R_LVDS_0>;
>> -
>> - channel@0 {
>> - #address-cells = <1>;
>> - #size-cells = <0>;
>> - reg = <0>;
>> - phys = <&mipi_lvds_0_phy>;
>> - phy-names = "lvds_phy";
>> -
>> - port@0 {
>> - reg = <0>;
>> -
>> - mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi: endpoint {
>> - remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0>;
>> - };
>> - };
>> -
>> - port@1 {
>> - reg = <1>;
>> -
>> - /* ... */
>> - };
>> - };
>> -
>> - channel@1 {
>> - #address-cells = <1>;
>> - #size-cells = <0>;
>> - reg = <1>;
>> - phys = <&mipi_lvds_0_phy>;
>> - phy-names = "lvds_phy";
>> -
>> - port@0 {
>> - reg = <0>;
>> -
>> - mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi: endpoint {
>> - remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1>;
>> - };
>> - };
>> -
>> - port@1 {
>> - reg = <1>;
>> -
>> - /* ... */
>> - };
>> - };
>> - };
>> - };
>> -
>> - mipi_lvds_0_phy: phy@56228300 {
>> - compatible = "fsl,imx8qxp-mipi-dphy";
>> - reg = <0x56228300 0x100>;
>> - clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_PHY>;
>> - clock-names = "phy_ref";
>> - #phy-cells = <0>;
>> - fsl,syscon = <&mipi_lvds_0_csr>;
>> - power-domains = <&pd IMX_SC_R_MIPI_0>;
>> - };
>> --
>> 2.34.1
>>
--
Regards,
Liu Ying
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2025-06-18 9:13 [PATCH] dt-bindings: mfd: fsl,imx8qxp-csr: Remove binding documentation Liu Ying
2025-06-18 16:51 ` Frank Li
2025-06-19 2:29 ` Liu Ying
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