[PATCH 1/4] dt-bindings: pinctrl: qcom: Add Milos LPI pinctrl

[Luca Weiss]

Add bindings for pin controller in Milos Low Power Audio SubSystem
(LPASS).

Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
---
 .../pinctrl/qcom,milos-lpass-lpi-pinctrl.yaml      | 109 +++++++++++++++++++++
 1 file changed, 109 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,milos-lpass-lpi-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,milos-lpass-lpi-pinctrl.yaml
new file mode 100644
index 000000000000..73e84f188591
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,milos-lpass-lpi-pinctrl.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,milos-lpass-lpi-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Milos SoC LPASS LPI TLMM
+
+maintainers:
+  - Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
+
+description:
+  Top Level Mode Multiplexer pin controller in the Low Power Audio SubSystem
+  (LPASS) Low Power Island (LPI) of Qualcomm Milos SoC.
+
+properties:
+  compatible:
+    const: qcom,milos-lpass-lpi-pinctrl
+
+  reg:
+    items:
+      - description: LPASS LPI TLMM Control and Status registers
+      - description: LPASS LPI MCC registers
+
+  clocks:
+    items:
+      - description: LPASS Core voting clock
+      - description: LPASS Audio voting clock
+
+  clock-names:
+    items:
+      - const: core
+      - const: audio
+
+patternProperties:
+  "-state$":
+    oneOf:
+      - $ref: "#/$defs/qcom-milos-lpass-state"
+      - patternProperties:
+          "-pins$":
+            $ref: "#/$defs/qcom-milos-lpass-state"
+        additionalProperties: false
+
+$defs:
+  qcom-milos-lpass-state:
+    type: object
+    description:
+      Pinctrl node's client devices use subnodes for desired pin configuration.
+      Client device subnodes use below standard properties.
+    $ref: qcom,lpass-lpi-common.yaml#/$defs/qcom-tlmm-state
+    unevaluatedProperties: false
+
+    properties:
+      pins:
+        description:
+          List of gpio pins affected by the properties specified in this
+          subnode.
+        items:
+          pattern: "^gpio([0-9]|1[0-9]|2[0-2])$"
+
+      function:
+        enum: [ dmic1_clk, dmic1_data, dmic2_clk, dmic2_data, dmic3_clk,
+                dmic3_data, dmic4_clk, dmic4_data, ext_mclk1_a, ext_mclk1_b,
+                ext_mclk1_c, ext_mclk1_d, ext_mclk1_e, gpio, i2s0_clk,
+                i2s0_data, i2s0_ws, i2s1_clk, i2s1_data, i2s1_ws, i2s2_clk,
+                i2s2_data, i2s2_ws, i2s3_clk, i2s3_data, i2s3_ws, qca_swr_clk,
+                qca_swr_data, slimbus_clk, slimbus_data, swr_rx_clk,
+                swr_rx_data, swr_tx_clk, swr_tx_data, wsa_swr_clk,
+                wsa_swr_data ]
+        description:
+          Specify the alternative function to be configured for the specified
+          pins.
+
+allOf:
+  - $ref: qcom,lpass-lpi-common.yaml#
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/sound/qcom,q6dsp-lpass-ports.h>
+
+    pinctrl@3440000 {
+        compatible = "qcom,milos-lpass-lpi-pinctrl";
+        reg = <0x03440000 0x20000>,
+              <0x034d0000 0x10000>;
+        gpio-controller;
+        #gpio-cells = <2>;
+        gpio-ranges = <&lpass_tlmm 0 0 23>;
+
+        clocks = <&q6prmcc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>,
+                 <&q6prmcc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+        clock-names = "core",
+                      "audio";
+
+        tx-swr-active-clk-state {
+            pins = "gpio0";
+            function = "swr_tx_clk";
+            drive-strength = <4>;
+            slew-rate = <1>;
+            bias-disable;
+        };
+    };

-- 
2.53.0