[PATCH v2] dt-bindings: mfd: fsl,imx8qxp-csr: Remove binding documentation

[Liu Ying <victor.liu@nxp.com>]

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 the CSR node's
compatible strings in the examples of fsl,imx8qxp-pixel-link-msi-bus.yaml
to replace the wrong compatible strings which include "simple-mfd" and
"fsl,imx8qxp-mipi-lvds-csr".  Since fsl,imx8qxp-pixel-link-msi-bus.yaml
as the last user of the CSR compatible strings no longer uses them, it's
safe to remove the fsl,imx8qxp-csr.yaml binding documentation.

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>
---
v2:
* Mention it's safe to remove fsl,imx8qxp-csr.yaml in commit message. (Frank)

 .../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