dt-bindings: pinctrl: fsl,imx6ul-pinctrl: Convert i.MX35/5x/6 to YAML

The IOMUXC controller description is almost identical on i.MX35/5x/6 SoCs,
except for the configuration bits which differ across SoCs. Rename the
fsl,imx6ul-pinctrl.yaml to fsl,imx35-pinctrl.yaml, fill in compatible
strings for the other SoCs and fill in the various bits into desciption.
This way, i.MX35/5x/6 series SoCs can all be converted to DT schema.
Remove the old text DT bindings description.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/20241017211241.170861-1-marex@denx.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: Marek Vasut

Documentation/devicetree/bindings/pinctrl/fsl,imx35-pinctrl.txt

@@ -1,10 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/pinctrl/fsl,imx6ul-pinctrl.yaml#
+$id: http://devicetree.org/schemas/pinctrl/fsl,imx35-pinctrl.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Freescale IMX6UL IOMUX Controller
+title: Freescale IMX35/IMX5x/IMX6 IOMUX Controller
 
 maintainers:
   - Dong Aisheng <aisheng.dong@nxp.com>
@@ -18,9 +18,21 @@ allOf:
 
 properties:
   compatible:
-    enum:
-      - fsl,imx6ul-iomuxc
-      - fsl,imx6ull-iomuxc-snvs
+    oneOf:
+      - enum:
+          - fsl,imx35-iomuxc
+          - fsl,imx51-iomuxc
+          - fsl,imx53-iomuxc
+          - fsl,imx6dl-iomuxc
+          - fsl,imx6q-iomuxc
+          - fsl,imx6sl-iomuxc
+          - fsl,imx6sll-iomuxc
+          - fsl,imx6sx-iomuxc
+          - fsl,imx6ul-iomuxc
+          - fsl,imx6ull-iomuxc-snvs
+      - items:
+          - const: fsl,imx50-iomuxc
+          - const: fsl,imx53-iomuxc
 
   reg:
     maxItems: 1
@@ -39,9 +51,9 @@ patternProperties:
           each entry consists of 6 integers and represents the mux and config
           setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
           mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
-          be found in <arch/arm/boot/dts/imx6ul-pinfunc.h>. The last integer
+          be found in <arch/arm/boot/dts/nxp/imx/imx*-pinfunc.h>. The last integer
           CONFIG is the pad setting value like pull-up on this pin. Please
-          refer to i.MX6UL Reference Manual for detailed CONFIG settings.
+          refer to matching i.MX Reference Manual for detailed CONFIG settings.
         $ref: /schemas/types.yaml#/definitions/uint32-matrix
         items:
           items:
@@ -56,7 +68,41 @@ patternProperties:
             - description: |
                 "input_val" indicates the select input value to be applied.
             - description: |
-                "pad_setting" indicates the pad configuration value to be applied:
+                "pad_setting" indicates the pad configuration value to be applied.
+                Common i.MX35
+                  PAD_CTL_DRIVE_VOLAGAGE_18       (1 << 13)
+                  PAD_CTL_DRIVE_VOLAGAGE_33       (0 << 13)
+                  PAD_CTL_HYS                     (1 << 8)
+                  PAD_CTL_PKE                     (1 << 7)
+                  PAD_CTL_PUE                     (1 << 6)
+                  PAD_CTL_PUS_100K_DOWN           (0 << 4)
+                  PAD_CTL_PUS_47K_UP              (1 << 4)
+                  PAD_CTL_PUS_100K_UP             (2 << 4)
+                  PAD_CTL_PUS_22K_UP              (3 << 4)
+                  PAD_CTL_ODE_CMOS                (0 << 3)
+                  PAD_CTL_ODE_OPENDRAIN           (1 << 3)
+                  PAD_CTL_DSE_NOMINAL             (0 << 1)
+                  PAD_CTL_DSE_HIGH                (1 << 1)
+                  PAD_CTL_DSE_MAX                 (2 << 1)
+                  PAD_CTL_SRE_FAST                (1 << 0)
+                  PAD_CTL_SRE_SLOW                (0 << 0)
+                Common i.MX50/i.MX51/i.MX53 bits
+                  PAD_CTL_HVE                     (1 << 13)
+                  PAD_CTL_HYS                     (1 << 8)
+                  PAD_CTL_PKE                     (1 << 7)
+                  PAD_CTL_PUE                     (1 << 6)
+                  PAD_CTL_PUS_100K_DOWN           (0 << 4)
+                  PAD_CTL_PUS_47K_UP              (1 << 4)
+                  PAD_CTL_PUS_100K_UP             (2 << 4)
+                  PAD_CTL_PUS_22K_UP              (3 << 4)
+                  PAD_CTL_ODE                     (1 << 3)
+                  PAD_CTL_DSE_LOW                 (0 << 1)
+                  PAD_CTL_DSE_MED                 (1 << 1)
+                  PAD_CTL_DSE_HIGH                (2 << 1)
+                  PAD_CTL_DSE_MAX                 (3 << 1)
+                  PAD_CTL_SRE_FAST                (1 << 0)
+                  PAD_CTL_SRE_SLOW                (0 << 0)
+                Common i.MX6 bits
                   PAD_CTL_HYS                     (1 << 16)
                   PAD_CTL_PUS_100K_DOWN           (0 << 14)
                   PAD_CTL_PUS_47K_UP              (1 << 14)
@@ -69,15 +115,26 @@ patternProperties:
                   PAD_CTL_SPEED_MED               (1 << 6)
                   PAD_CTL_SPEED_HIGH              (3 << 6)
                   PAD_CTL_DSE_DISABLE             (0 << 3)
+                  PAD_CTL_SRE_FAST                (1 << 0)
+                  PAD_CTL_SRE_SLOW                (0 << 0)
+                i.MX6SL/MX6SLL specific bits
+                  PAD_CTL_LVE                     (1 << 22) (MX6SL/SLL only)
+                i.MX6SLL/i.MX6SX/i.MX6UL/i.MX6ULL specific bits
                   PAD_CTL_DSE_260ohm              (1 << 3)
                   PAD_CTL_DSE_130ohm              (2 << 3)
                   PAD_CTL_DSE_87ohm               (3 << 3)
                   PAD_CTL_DSE_65ohm               (4 << 3)
                   PAD_CTL_DSE_52ohm               (5 << 3)
                   PAD_CTL_DSE_43ohm               (6 << 3)
                   PAD_CTL_DSE_37ohm               (7 << 3)
-                  PAD_CTL_SRE_FAST                (1 << 0)
-                  PAD_CTL_SRE_SLOW                (0 << 0)
+                i.MX6DL/i.MX6Q/i.MX6SL specific bits
+                  PAD_CTL_DSE_240ohm              (1 << 3)
+                  PAD_CTL_DSE_120ohm              (2 << 3)
+                  PAD_CTL_DSE_80ohm               (3 << 3)
+                  PAD_CTL_DSE_60ohm               (4 << 3)
+                  PAD_CTL_DSE_48ohm               (5 << 3)
+                  PAD_CTL_DSE_40ohm               (6 << 3)
+                  PAD_CTL_DSE_34ohm               (7 << 3)
 
     required:
       - fsl,pins
@@ -114,3 +171,14 @@ examples:
         >;
       };
     };
+  - |
+    iomuxc_mx6q: pinctrl@20e0000 {
+        compatible = "fsl,imx6q-iomuxc";
+        reg = <0x20e0000 0x4000>;
+
+        pinctrl_uart4: uart4grp {
+            fsl,pins =
+                <0x288 0x658 0x000 0x3 0x0	0x140>,
+                <0x28c 0x65c 0x938 0x3 0x3	0x140>;
+        };
+    };