dt-bindings: pinctrl: qcom: Add sm8250 pinctrl bindings

Add device tree binding Documentation details for Qualcomm SM8250
pinctrl driver.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200417061907.1226490-2-bjorn.andersson@linaro.orgSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/qcom,sm8250-pinctrl.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,sm8250-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SM8250 TLMM block
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description: |
+  This binding describes the Top Level Mode Multiplexer block found in the
+  SM8250 platform.
+
+properties:
+  compatible:
+    const: qcom,sm8250-pinctrl
+
+  reg:
+    minItems: 3
+    maxItems: 3
+
+  reg-names:
+    items:
+      - const: "west"
+      - const: "south"
+      - const: "north"
+
+  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:
+  '^.*$':
+    if:
+      type: object
+    then:
+      properties:
+        pins:
+          description:
+            List of gpio pins affected by the properties specified in this
+            subnode.
+          items:
+            oneOf:
+              - pattern: "^gpio([0-9]|[1-9][0-9]|1[0-7][0-9])$"
+              - enum: [ 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: [ aoss_cti, atest, audio_ref, cam_mclk, cci_async, cci_i2c,
+            cci_timer0, cci_timer1, cci_timer2, cci_timer3, cci_timer4, cri_trng,
+            cri_trng0, cri_trng1, dbg_out, ddr_bist, ddr_pxi0, ddr_pxi1,
+            ddr_pxi2, ddr_pxi3, dp_hot, dp_lcd, gcc_gp1, gcc_gp2, gcc_gp3, gpio,
+            ibi_i3c, jitter_bist, lpass_slimbus, mdp_vsync, mdp_vsync0,
+            mdp_vsync1, mdp_vsync2, mdp_vsync3, mi2s0_data0, mi2s0_data1,
+            mi2s0_sck, mi2s0_ws, mi2s1_data0, mi2s1_data1, mi2s1_sck, mi2s1_ws,
+            mi2s2_data0, mi2s2_data1, mi2s2_sck, mi2s2_ws, pci_e0, pci_e1,
+            pci_e2, phase_flag, pll_bist, pll_bypassnl, pll_clk, pll_reset,
+            pri_mi2s, prng_rosc, qdss_cti, qdss_gpio, qspi0, qspi1, qspi2, qspi3,
+            qspi_clk, qspi_cs, qup0, qup1, qup10, qup11, qup12, qup13, qup14,
+            qup15, qup16, qup17, qup18, qup19, qup2, qup3, qup4, qup5, qup6,
+            qup7, qup8, qup9, qup_l4, qup_l5, qup_l6, sd_write, sdc40, sdc41,
+            sdc42, sdc43, sdc4_clk, sdc4_cmd, sec_mi2s, sp_cmu, tgu_ch0, tgu_ch1,
+            tgu_ch2, tgu_ch3, tsense_pwm1, tsense_pwm2, tsif0_clk, tsif0_data,
+            tsif0_en, tsif0_error, tsif0_sync, tsif1_clk, tsif1_data, tsif1_en,
+            tsif1_error, tsif1_sync, usb2phy_ac, usb_phy, vsense_trigger ]
+
+        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
+        - function
+
+      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>
+        pinctrl@1f00000 {
+                compatible = "qcom,sm8250-pinctrl";
+                reg = <0x0f100000 0x300000>,
+                      <0x0f500000 0x300000>,
+                      <0x0f900000 0x300000>;
+                reg-names = "west", "south", "north";
+                interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+                gpio-controller;
+                #gpio-cells = <2>;
+                interrupt-controller;
+                #interrupt-cells = <2>;
+                gpio-ranges = <&tlmm 0 0 180>;
+                wakeup-parent = <&pdc>;
+        };