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Date:   Sun, 24 Oct 2021 11:40:16 -0400
From:   Jesse Taube <mr.bossman075@...il.com>
To:     linux-imx@....com
Cc:     mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, ulf.hansson@...aro.org, aisheng.dong@....com,
        stefan@...er.ch, linus.walleij@...aro.org,
        gregkh@...uxfoundation.org, arnd@...db.de, olof@...om.net,
        soc@...nel.org, linux@...linux.org.uk, abel.vesa@....com,
        adrian.hunter@...el.com, jirislaby@...nel.org,
        giulio.benetti@...ettiengineering.com,
        nobuhiro1.iwamatsu@...hiba.co.jp, leonard.crestez@....com,
        b20788@...escale.com, Mr.Bossman075@...il.com, fugang.duan@....com,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mmc@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-serial@...r.kernel.org
Subject: [PATCH 02/13] dt-bindings: pinctrl: add i.MXRT1050 pinctrl binding doc

Add i.MXRT1050 pinctrl binding doc

Cc: Giulio Benetti <giulio.benetti@...ettiengineering.com>
Signed-off-by: Jesse Taube <Mr.Bossman075@...il.com>
---
 .../bindings/pinctrl/fsl,imxrt1050.yaml       | 85 +++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,imxrt1050.yaml

diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1050.yaml b/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1050.yaml
new file mode 100644
index 000000000000..2f3e41b40782
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1050.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/fsl,imxrt-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale IMXRT1050 IOMUX Controller
+
+maintainers:
+  - Giulio Benetti <giulio.benetti@...ettiengineering.com>
+  - Jesse Taube <Mr.Bossman075@...il.com>
+
+description:
+  Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
+  for common binding part and usage.
+
+properties:
+  compatible:
+    const: fsl,imxrt1050-iomuxc
+
+  reg:
+    maxItems: 1
+
+# Client device subnode's properties
+patternProperties:
+  'grp$':
+    type: object
+    description:
+      Pinctrl node's client devices use subnodes for desired pin configuration.
+      Client device subnodes use below standard properties.
+
+    properties:
+      fsl,pins:
+        description:
+          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 <include/dt-bindings/pinctrl/pins-imxrt1050.h>. The last
+          integer CONFIG is the pad setting value like pull-up on this pin. Please
+          refer to i.MXRT1050 Reference Manual for detailed CONFIG settings.
+        $ref: /schemas/types.yaml#/definitions/uint32-matrix
+        items:
+          items:
+            - description: |
+                "mux_reg" indicates the offset of mux register.
+            - description: |
+                "conf_reg" indicates the offset of pad configuration register.
+            - description: |
+                "input_reg" indicates the offset of select input register.
+            - description: |
+                "mux_val" indicates the mux value to be applied.
+            - description: |
+                "input_val" indicates the select input value to be applied.
+            - description: |
+                "pad_setting" indicates the pad configuration value to be applied.
+
+    required:
+      - fsl,pins
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    iomuxc: iomuxc@...f8000 {
+      compatible = "fsl,imxrt1050-iomuxc";
+      reg = <0x401f8000 0x4000>;
+      fsl,mux_mask = <0x7>;
+      pinctrl-names = "default";
+      imxrt1050-evk {
+        pinctrl_lpuart1: lpuart1grp {
+        fsl,pins = <
+          MXRT1050_IOMUXC_GPIO_AD_B0_12_LPUART1_TXD
+            0xf1
+          MXRT1050_IOMUXC_GPIO_AD_B0_13_LPUART1_RXD
+            0xf1
+          >;
+        };
+      };
+    };
-- 
2.33.0

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