dt-bindings: pinctrl: qcom: Add support for IPQ9574

Add new binding document for pinctrl on IPQ9574
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Co-developed-by: Anusha Rao <quic_anusha@quicinc.com>
Signed-off-by: Anusha Rao <quic_anusha@quicinc.com>
Signed-off-by: Devi Priya <quic_devipriy@quicinc.com>
Link: https://lore.kernel.org/r/20230316072940.29137-4-quic_devipriy@quicinc.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/qcom,ipq9574-tlmm.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,ipq9574-tlmm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. IPQ9574 TLMM block
+
+maintainers:
+  - Bjorn Andersson <andersson@kernel.org>
+  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+
+description:
+  Top Level Mode Multiplexer pin controller in Qualcomm IPQ9574 SoC.
+
+properties:
+  compatible:
+    const: qcom,ipq9574-tlmm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+  "#interrupt-cells": true
+  gpio-controller: true
+  "#gpio-cells": true
+  gpio-ranges: true
+  wakeup-parent: true
+
+  gpio-reserved-ranges:
+    minItems: 1
+    maxItems: 33
+
+  gpio-line-names:
+    maxItems: 65
+
+patternProperties:
+  "-state$":
+    oneOf:
+      - $ref: "#/$defs/qcom-ipq9574-tlmm-state"
+      - patternProperties:
+          "-pins$":
+            $ref: "#/$defs/qcom-ipq9574-tlmm-state"
+        additionalProperties: false
+
+$defs:
+  qcom-ipq9574-tlmm-state:
+    type: object
+    description:
+      Pinctrl node's client devices use subnodes for desired pin configuration.
+      Client device subnodes use below standard properties.
+    $ref: qcom,tlmm-common.yaml#/$defs/qcom-tlmm-state
+
+    properties:
+      pins:
+        description:
+          List of gpio pins affected by the properties specified in this
+          subnode.
+        items:
+          pattern: "^gpio([0-9]|[1-5][0-9]|6[0-4])$"
+        minItems: 1
+        maxItems: 8
+
+      function:
+        description:
+          Specify the alternative function to be configured for the specified
+          pins.
+
+        enum: [ atest_char, atest_char0, atest_char1, atest_char2, atest_char3,
+                audio_pdm0, audio_pdm1, audio_pri, audio_sec, blsp0_spi, blsp0_uart,
+                blsp1_i2c, blsp1_spi, blsp1_uart, blsp2_i2c, blsp2_spi,
+                blsp2_uart, blsp3_i2c, blsp3_spi, blsp3_uart, blsp4_i2c,
+                blsp4_spi, blsp4_uart, blsp5_i2c, blsp5_uart, cri_trng0,
+                cri_trng1, cri_trng3, cxc0, cxc1, dbg_out, dwc_ddrphy,
+                gcc_plltest, gcc_tlmm, mac, mdc, mdio, pcie0_clk, pcie0_wake,
+                pcie1_clk, pcie1_wake, pcie2_clk, pcie2_wake, pcie3_clk, pcie3_wake,
+                prng_rosc0, prng_rosc1, prng_rosc2, prng_rosc3, pta, pwm,
+                qdss_cti_trig_in_a0, qdss_cti_trig_in_a1, qdss_cti_trig_in_b0,
+                qdss_cti_trig_in_b1, qdss_cti_trig_out_a0, qdss_cti_trig_out_a1,
+                qdss_cti_trig_out_b0, qdss_cti_trig_out_b1, qdss_traceclk_a,
+                qdss_traceclk_b, qdss_tracectl_a, qdss_tracectl_b, qdss_tracedata_a,
+                qdss_tracedata_b, qdss_tracedata_b, qspi_clk, qspi_cs, qspi_data,
+                rx0, rx1, sdc_clk, sdc_cmd, sdc_data, sdc_rclk, tsens_max,
+                wci20, wci21, wsa_swrm ]
+
+      bias-pull-down: true
+      bias-pull-up: true
+      bias-disable: true
+      drive-strength: true
+      input-enable: true
+      output-high: true
+      output-low: true
+
+    required:
+      - pins
+
+    additionalProperties: false
+
+allOf:
+  - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    tlmm: pinctrl@1000000 {
+        compatible = "qcom,ipq9574-tlmm";
+        reg = <0x01000000 0x300000>;
+        interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+        gpio-controller;
+        #gpio-cells = <2>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        gpio-ranges = <&tlmm 0 0 65>;
+
+        uart2-state {
+            pins = "gpio34", "gpio35";
+            function = "blsp2_uart";
+            drive-strength = <8>;
+            bias-pull-down;
+        };
+    };