dt-bindings: pinctrl: document the Milos Top Level Mode Multiplexer

Document the Top Level Mode Multiplexer on the Milos Platform.

Signed-off-by: Luca Weiss <[e-mail]>
Reviewed-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

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

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,milos-tlmm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. Milos TLMM block
+
+maintainers:
+  - Luca Weiss <[e-mail]>
+
+description:
+  Top Level Mode Multiplexer pin controller in Qualcomm Milos SoC.
+
+allOf:
+  - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
+
+properties:
+  compatible:
+    const: qcom,milos-tlmm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  gpio-reserved-ranges:
+    minItems: 1
+    maxItems: 84
+
+  gpio-line-names:
+    maxItems: 167
+
+patternProperties:
+  "-state$":
+    oneOf:
+      - $ref: "#/$defs/qcom-milos-tlmm-state"
+      - patternProperties:
+          "-pins$":
+            $ref: "#/$defs/qcom-milos-tlmm-state"
+        additionalProperties: false
+
+$defs:
+  qcom-milos-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
+    unevaluatedProperties: false
+
+    properties:
+      pins:
+        description:
+          List of gpio pins affected by the properties specified in this
+          subnode.
+        items:
+          oneOf:
+            - pattern: "^gpio([0-9]|[1-9][0-9]|1[0-5][0-9]|16[0-7])$"
+            - enum: [ ufs_reset, sdc2_clk, sdc2_cmd, sdc2_data ]
+        minItems: 1
+        maxItems: 36
+
+      function:
+        description:
+          Specify the alternative function to be configured for the specified
+          pins.
+        enum: [ gpio, aoss_cti, atest_char, atest_usb, audio_ext_mclk0,
+                audio_ext_mclk1, audio_ref_clk, cam_mclk, cci_async_in0,
+                cci_i2c_scl, cci_i2c_sda, cci_timer, coex_uart1_rx,
+                coex_uart1_tx, dbg_out_clk, ddr_bist_complete, ddr_bist_fail,
+                ddr_bist_start, ddr_bist_stop, ddr_pxi0, ddr_pxi1, dp0_hot,
+                egpio, gcc_gp1, gcc_gp2, gcc_gp3, host2wlan_sol, i2s0_data0,
+                i2s0_data1, i2s0_sck, i2s0_ws, ibi_i3c, jitter_bist, mdp_vsync,
+                mdp_vsync0_out, mdp_vsync1_out, mdp_vsync2_out, mdp_vsync3_out,
+                mdp_vsync_e, nav_gpio0, nav_gpio1, nav_gpio2, pcie0_clk_req_n,
+                pcie1_clk_req_n, phase_flag, pll_bist_sync, pll_clk_aux,
+                prng_rosc0, prng_rosc1, prng_rosc2, prng_rosc3, qdss_cti,
+                qdss_gpio, qlink0_enable, qlink0_request, qlink0_wmss,
+                qlink1_enable, qlink1_request, qlink1_wmss, qspi0, qup0_se0,
+                qup0_se1, qup0_se2, qup0_se3, qup0_se4, qup0_se5, qup0_se6,
+                qup1_se0, qup1_se1, qup1_se2, qup1_se3, qup1_se4, qup1_se5,
+                qup1_se6, resout_gpio_n, sd_write_protect, sdc1_clk, sdc1_cmd,
+                sdc1_data, sdc1_rclk, sdc2_clk, sdc2_cmd, sdc2_data,
+                sdc2_fb_clk, tb_trig_sdc1, tb_trig_sdc2, tgu_ch0_trigout,
+                tgu_ch1_trigout, tmess_prng0, tmess_prng1, tmess_prng2,
+                tmess_prng3, tsense_pwm1, tsense_pwm2, uim0_clk, uim0_data,
+                uim0_present, uim0_reset, uim1_clk_mira, uim1_clk_mirb,
+                uim1_data_mira, uim1_data_mirb, uim1_present_mira,
+                uim1_present_mirb, uim1_reset_mira, uim1_reset_mirb, usb0_hs,
+                usb0_phy_ps, vfr_0, vfr_1, vsense_trigger_mirnat, wcn_sw,
+                wcn_sw_ctrl ]
+
+    required:
+      - pins
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    tlmm: pinctrl@f100000 {
+        compatible = "qcom,milos-tlmm";
+        reg = <0x0f100000 0x300000>;
+
+        interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+
+        gpio-controller;
+        #gpio-cells = <2>;
+
+        interrupt-controller;
+        #interrupt-cells = <2>;
+
+        gpio-ranges = <&tlmm 0 0 168>;
+
+        gpio-wo-state {
+            pins = "gpio1";
+            function = "gpio";
+        };
+
+        qup-uart5-default-state {
+            pins = "gpio25", "gpio26";
+            function = "qup0_se5";
+            drive-strength = <2>;
+            bias-disable;
+        };
+    };
+...