Add documentation for the Qualcomm sm8750 tlmm.

Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 .../bindings/pinctrl/qcom,sm8750-tlmm.yaml    | 138 ++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml

diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml
new file mode 100644
index 000000000000..7aecc97745a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml
@@ -0,0 +1,138 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,sm8750-tlmm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SM8750 TLMM block
+
+maintainers:
+  - Melody Olvera <quic_molvera@quicinc.com>
+
+description:
+  Top Level Mode Multiplexer pin controller in Qualcomm SM8750 SoC.
+
+allOf:
+  - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
+
+properties:
+  compatible:
+    const: qcom,sm8750-tlmm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  gpio-reserved-ranges:
+    minItems: 1
+    maxItems: 108
+
+  gpio-line-names:
+    maxItems: 215
+
+patternProperties:
+  "-state$":
+    oneOf:
+      - $ref: "#/$defs/qcom-sm8750-tlmm-state"
+      - patternProperties:
+          "-pins$":
+            $ref: "#/$defs/qcom-sm8750-tlmm-state"
+        additionalProperties: false
+
+$defs:
+  qcom-sm8750-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[0-9][0-9]|20[0-9]|21[0-4])$"
+            - 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_aon_mclk2, cam_aon_mclk4,
+                cam_mclk, cci_async_in, cci_i2c_scl, cci_i2c_sda, cci_timer,
+                cmu_rng, coex_uart1_rx, coex_uart1_tx, coex_uart2_rx,
+                coex_uart2_tx, dbg_out_clk, ddr_bist_complete, ddr_bist_fail,
+                ddr_bist_start, ddr_bist_stop, ddr_pxi0, ddr_pxi1, ddr_pxi2,
+                ddr_pxi3, dp_hot, egpio, gcc_gp1, gcc_gp2, gcc_gp3, gnss_adc0,
+                gnss_adc1, i2chub0_se0, i2chub0_se1, i2chub0_se2, i2chub0_se3,
+                i2chub0_se4, i2chub0_se5, i2chub0_se6, i2chub0_se7, i2chub0_se8,
+                i2chub0_se9, i2s0_data0, i2s0_data1, i2s0_sck, i2s0_ws,
+                i2s1_data0, i2s1_data1, i2s1_sck, i2s1_ws, ibi_i3c, jitter_bist,
+                mdp_esync0_out, mdp_esync1_out, mdp_vsync, mdp_vsync0_out,
+                mdp_vsync1_out, mdp_vsync2_out, mdp_vsync3_out, mdp_vsync5_out,
+                mdp_vsync_e, nav_gpio0, nav_gpio1, nav_gpio2, nav_gpio3,
+                pcie0_clk_req_n, phase_flag, pll_bist_sync, pll_clk_aux,
+                prng_rosc0, prng_rosc1, prng_rosc2, prng_rosc3, qdss_cti,
+                qlink_big_enable, qlink_big_request, qlink_little_enable,
+                qlink_little_request, qlink_wmss, qspi0, qspi1, qspi2, qspi3,
+                qspi_clk, qspi_cs, qup1_se0, qup1_se1, qup1_se2, qup1_se3,
+                qup1_se4, qup1_se5, qup1_se6, qup1_se7, qup2_se0, qup2_se1,
+                qup2_se2, qup2_se3, qup2_se4, qup2_se5, qup2_se6, qup2_se7,
+                sd_write_protect, sdc40, sdc41, sdc42, sdc43, sdc4_clk,
+                sdc4_cmd, tb_trig_sdc2, tb_trig_sdc4, tmess_prng0, tmess_prng1,
+                tmess_prng2, tmess_prng3, tsense_pwm1, tsense_pwm2, tsense_pwm3,
+                tsense_pwm4, uim0_clk, uim0_data, uim0_present, uim0_reset,
+                uim1_clk, uim1_data, uim1_present, uim1_reset, usb1_hs, usb_phy,
+                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,sm8750-tlmm";
+        reg = <0x0f100000 0x300000>;
+        gpio-controller;
+        #gpio-cells = <2>;
+        gpio-ranges = <&tlmm 0 0 216>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+
+        gpio-wo-state {
+            pins = "gpio1";
+            function = "gpio";
+        };
+
+        uart-w-state {
+            rx-pins {
+                pins = "gpio60";
+                function = "qup1_se7";
+                bias-pull-up;
+            };
+
+            tx-pins {
+                pins = "gpio61";
+                function = "qup1_se7";
+                bias-disable;
+            };
+        };
+    };
+...
-- 
2.46.1