[PATCH 8/8] dt-bindings: pinctrl: Add Amlogic Meson pinctrl binding
Heiner Kallweit
hkallweit1 at gmail.com
Mon Jan 23 13:30:44 PST 2023
Add Amlogic Meson pinctrl binding.
Tested with make targets dt_binding_check and dtbs_check.
Signed-off-by: Heiner Kallweit <hkallweit1 at gmail.com>
---
.../pinctrl/amlogic,meson-pinctrl.yaml | 121 ++++++++++++++++++
.../bindings/pinctrl/meson,pinctrl.txt | 94 --------------
2 files changed, 121 insertions(+), 94 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl.yaml
delete mode 100644 Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
diff --git a/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl.yaml
new file mode 100644
index 000000000..afdf4dade
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/amlogic,meson-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson pinmux controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong at linaro.org>
+
+allOf:
+ - $ref: pinctrl.yaml#
+
+properties:
+ compatible:
+ enum:
+ - amlogic,meson8-cbus-pinctrl
+ - amlogic,meson8b-cbus-pinctrl
+ - amlogic,meson8m2-cbus-pinctrl
+ - amlogic,meson8-aobus-pinctrl
+ - amlogic,meson8b-aobus-pinctrl
+ - amlogic,meson8m2-aobus-pinctrl
+ - amlogic,meson-gxbb-periphs-pinctrl
+ - amlogic,meson-gxbb-aobus-pinctrl
+ - amlogic,meson-gxl-periphs-pinctrl
+ - amlogic,meson-gxl-aobus-pinctrl
+ - amlogic,meson-axg-periphs-pinctrl
+ - amlogic,meson-axg-aobus-pinctrl
+ - amlogic,meson-g12a-periphs-pinctrl
+ - amlogic,meson-g12a-aobus-pinctrl
+ - amlogic,meson-a1-periphs-pinctrl
+ - amlogic,meson-s4-periphs-pinctrl
+
+ ranges: true
+
+ "#address-cells":
+ const: 2
+
+ "#size-cells":
+ const: 2
+
+required:
+ - compatible
+ - ranges
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties:
+ anyOf:
+ - type: object
+ allOf:
+ - $ref: pincfg-node.yaml#
+ - $ref: pinmux-node.yaml#
+
+patternProperties:
+ "^bank@[0-9]$":
+ type: object
+ properties:
+ reg:
+ minItems: 5
+ maxItems: 5
+
+ reg-names:
+ items:
+ - const: gpio
+ - const: pull
+ - const: pull-enable
+ - const: mux
+ - const: ds
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+
+ gpio-ranges:
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ required:
+ - reg
+ - reg-names
+ - gpio-controller
+ - "#gpio-cells"
+ - gpio-ranges
+
+examples:
+ - |
+ bus at 34400 {
+ reg = <0x0 0x34400 0x0 0x400>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pinctrl at 40 {
+ compatible = "amlogic,meson-g12a-periphs-pinctrl";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ /* avoid "unit has no reg or ranges property" warning */
+ ranges = <0x0 0x0 0x0 0x34400 0x0 0x100>;
+
+ bank at 40 {
+ reg = <0x0 0x40 0x0 0x4c>,
+ <0x0 0xe8 0x0 0x18>,
+ <0x0 0x120 0x0 0x18>,
+ <0x0 0x2c0 0x0 0x40>,
+ <0x0 0x340 0x0 0x1c>;
+ reg-names = "gpio", "pull", "pull-enable", "mux", "ds";
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&periphs_pinctrl 0 0 86>;
+ };
+
+ cec_ao_a_h_pins: cec_ao_a_h {
+ mux {
+ groups = "cec_ao_a_h";
+ function = "cec_ao_a_h";
+ bias-disable;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
deleted file mode 100644
index 8146193bd..000000000
--- a/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
+++ /dev/null
@@ -1,94 +0,0 @@
-== Amlogic Meson pinmux controller ==
-
-Required properties for the root node:
- - compatible: one of "amlogic,meson8-cbus-pinctrl"
- "amlogic,meson8b-cbus-pinctrl"
- "amlogic,meson8m2-cbus-pinctrl"
- "amlogic,meson8-aobus-pinctrl"
- "amlogic,meson8b-aobus-pinctrl"
- "amlogic,meson8m2-aobus-pinctrl"
- "amlogic,meson-gxbb-periphs-pinctrl"
- "amlogic,meson-gxbb-aobus-pinctrl"
- "amlogic,meson-gxl-periphs-pinctrl"
- "amlogic,meson-gxl-aobus-pinctrl"
- "amlogic,meson-axg-periphs-pinctrl"
- "amlogic,meson-axg-aobus-pinctrl"
- "amlogic,meson-g12a-periphs-pinctrl"
- "amlogic,meson-g12a-aobus-pinctrl"
- "amlogic,meson-a1-periphs-pinctrl"
- "amlogic,meson-s4-periphs-pinctrl"
- - reg: address and size of registers controlling irq functionality
-
-=== GPIO sub-nodes ===
-
-The GPIO bank for the controller is represented as a sub-node and it acts as a
-GPIO controller.
-
-Required properties for sub-nodes are:
- - reg: should contain a list of address and size, one tuple for each entry
- in reg-names.
- - reg-names: an array of strings describing the "reg" entries.
- Must contain "mux" and "gpio".
- May contain "pull", "pull-enable" and "ds" when appropriate.
- - gpio-controller: identifies the node as a gpio controller
- - #gpio-cells: must be 2
-
-=== Other sub-nodes ===
-
-Child nodes without the "gpio-controller" represent some desired
-configuration for a pin or a group. Those nodes can be pinmux nodes or
-configuration nodes.
-
-Required properties for pinmux nodes are:
- - groups: a list of pinmux groups. The list of all available groups
- depends on the SoC and can be found in driver sources.
- - function: the name of a function to activate for the specified set
- of groups. The list of all available functions depends on the SoC
- and can be found in driver sources.
-
-Required properties for configuration nodes:
- - pins: a list of pin names
-
-Configuration nodes support the following generic properties, as
-described in file pinctrl-bindings.txt:
- - "bias-disable"
- - "bias-pull-up"
- - "bias-pull-down"
- - "output-enable"
- - "output-disable"
- - "output-low"
- - "output-high"
-
-Optional properties :
- - drive-strength-microamp: Drive strength for the specified pins in uA.
- This property is only valid for G12A and newer.
-
-=== Example ===
-
- pinctrl: pinctrl at c1109880 {
- compatible = "amlogic,meson8-cbus-pinctrl";
- reg = <0xc1109880 0x10>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- gpio: banks at c11080b0 {
- reg = <0xc11080b0 0x28>,
- <0xc11080e8 0x18>,
- <0xc1108120 0x18>,
- <0xc1108030 0x30>;
- reg-names = "mux", "pull", "pull-enable", "gpio";
- gpio-controller;
- #gpio-cells = <2>;
- };
-
- nand {
- mux {
- groups = "nand_io", "nand_io_ce0", "nand_io_ce1",
- "nand_io_rb0", "nand_ale", "nand_cle",
- "nand_wen_clk", "nand_ren_clk", "nand_dqs",
- "nand_ce2", "nand_ce3";
- function = "nand";
- };
- };
- };
--
2.39.1
More information about the linux-amlogic
mailing list