[PATCH 02/13] dt-bindings: pinctrl: add i.MXRT1050 pinctrl binding doc

From: Jesse Taube
Date: Sun Oct 24 2021 - 11:41:17 EST


Add i.MXRT1050 pinctrl binding doc

Cc: Giulio Benetti <giulio.benetti@xxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jesse Taube <Mr.Bossman075@xxxxxxxxx>
---
.../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@xxxxxxxxxxxxxxxxxxxxxx>
+ - Jesse Taube <Mr.Bossman075@xxxxxxxxx>
+
+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@401f8000 {
+ 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