dt-bindings: pinctrl: qcom: Add SM6115 pinctrl bindings

Add device tree binding Documentation details for Qualcomm SM6115 and
SM4250 pinctrl.
Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210723192352.546902-2-iskren.chernev@gmail.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/qcom,sm6115-pinctrl.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,sm6115-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SM6115, SM4250 TLMM block
+
+maintainers:
+  - Iskren Chernev <iskren.chernev@gmail.com>
+
+description:
+  This binding describes the Top Level Mode Multiplexer block found in the
+  SM4250/6115 platforms.
+
+properties:
+  compatible:
+    const: qcom,sm6115-tlmm
+
+  reg:
+    minItems: 3
+    maxItems: 3
+
+  reg-names:
+    items:
+      - const: west
+      - const: south
+      - const: east
+
+  interrupts:
+    description: Specifies the TLMM summary IRQ
+    maxItems: 1
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    description:
+      Specifies the PIN numbers and Flags, as defined in defined in
+      include/dt-bindings/interrupt-controller/irq.h
+    const: 2
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    description: Specifying the pin number and flags, as defined in
+      include/dt-bindings/gpio/gpio.h
+    const: 2
+
+  gpio-ranges:
+    maxItems: 1
+
+  wakeup-parent:
+    maxItems: 1
+
+#PIN CONFIGURATION NODES
+patternProperties:
+  '-state$':
+    oneOf:
+      - $ref: "#/$defs/qcom-sm6115-tlmm-state"
+      - patternProperties:
+          ".*":
+            $ref: "#/$defs/qcom-sm6115-tlmm-state"
+
+'$defs':
+  qcom-sm6115-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:
+          oneOf:
+            - pattern: "^gpio([0-9]|[1-9][0-9]|10[0-9]|11[0-2])$"
+            - enum: [ sdc1_rclk, sdc1_clk, sdc1_cmd, sdc1_data,
+                      sdc2_clk, sdc2_cmd, sdc2_data, ufs_reset ]
+        minItems: 1
+        maxItems: 36
+
+      function:
+        description:
+          Specify the alternative function to be configured for the specified
+          pins.
+
+        enum: [ adsp_ext, agera_pll, atest, cam_mclk, cci_async, cci_i2c,
+                cci_timer, cri_trng, dac_calib, dbg_out, ddr_bist, ddr_pxi0,
+                ddr_pxi1, ddr_pxi2, ddr_pxi3, gcc_gp1, gcc_gp2, gcc_gp3, gpio,
+                gp_pdm0, gp_pdm1, gp_pdm2, gsm0_tx, gsm1_tx, jitter_bist,
+                mdp_vsync, mdp_vsync_out_0, mdp_vsync_out_1, mpm_pwr, mss_lte,
+                m_voc, nav_gpio, pa_indicator, pbs, pbs_out, phase_flag,
+                pll_bist, pll_bypassnl, pll_reset, prng_rosc, qdss_cti,
+                qdss_gpio, qup0, qup1, qup2, qup3, qup4, qup5, sdc1_tb,
+                sdc2_tb, sd_write, ssbi_wtr1, tgu, tsense_pwm, uim1_clk,
+                uim1_data, uim1_present, uim1_reset, uim2_clk, uim2_data,
+                uim2_present, uim2_reset, usb_phy, vfr_1, vsense_trigger,
+                wlan1_adc0, elan1_adc1 ]
+
+      drive-strength:
+        enum: [2, 4, 6, 8, 10, 12, 14, 16]
+        default: 2
+        description:
+          Selects the drive strength for the specified pins, in mA.
+
+      bias-pull-down: true
+
+      bias-pull-up: true
+
+      bias-disable: true
+
+      output-high: true
+
+      output-low: true
+
+    required:
+      - pins
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - interrupt-controller
+  - '#interrupt-cells'
+  - gpio-controller
+  - '#gpio-cells'
+  - gpio-ranges
+
+additionalProperties: false
+
+examples:
+  - |
+        #include <dt-bindings/interrupt-controller/arm-gic.h>
+        tlmm: pinctrl@500000 {
+                compatible = "qcom,sm6115-tlmm";
+                reg = <0x500000 0x400000>,
+                        <0x900000 0x400000>,
+                        <0xd00000 0x400000>;
+                reg-names = "west", "south", "east";
+                interrupts = <GIC_SPI 227 IRQ_TYPE_LEVEL_HIGH>;
+                gpio-controller;
+                #gpio-cells = <2>;
+                interrupt-controller;
+                #interrupt-cells = <2>;
+                gpio-ranges = <&tlmm 0 0 114>;
+
+                sdc2_on_state: sdc2-on-state {
+                        clk {
+                                pins = "sdc2_clk";
+                                bias-disable;
+                                drive-strength = <16>;
+                        };
+
+                        cmd {
+                                pins = "sdc2_cmd";
+                                bias-pull-up;
+                                drive-strength = <10>;
+                        };
+
+                        data {
+                                pins = "sdc2_data";
+                                bias-pull-up;
+                                drive-strength = <10>;
+                        };
+
+                        sd-cd {
+                                pins = "gpio88";
+                                function = "gpio";
+                                bias-pull-up;
+                                drive-strength = <2>;
+                        };
+                };
+        };