@@ -0,0 +1,137 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/brcm,bcm2712c0-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom STB family pin controller
+
+maintainers:
+  - Ivan T. Ivanov <iivanov@suse.de>
+  - A. della Porta <andrea.porta@suse.com>
+
+description: >
+  Broadcom's STB family of memory-mapped pin controllers.
+
+  This includes the pin controllers inside the BCM2712 SoC which
+  are instances of the STB family and has two silicon variants,
+  C0 and D0, which differs slightly in terms of registers layout.
+
+  The -aon- (Always On) variant is the same IP block but differs
+  in the number of pins that are associated and the pinmux functions
+  for each of those pins.
+
+allOf:
+  - $ref: pinctrl.yaml#
+
+properties:
+  compatible:
+    enum:
+      - brcm,bcm2712c0-pinctrl
+      - brcm,bcm2712c0-aon-pinctrl
+      - brcm,bcm2712d0-pinctrl
+      - brcm,bcm2712d0-aon-pinctrl
+
+  reg:
+    maxItems: 1
+
+patternProperties:
+  '-state$':
+    oneOf:
+      - $ref: '#/$defs/brcmstb-pinctrl-state'
+      - patternProperties:
+          '-pins$':
+            $ref: '#/$defs/brcmstb-pinctrl-state'
+        additionalProperties: false
+
+$defs:
+  brcmstb-pinctrl-state:
+    allOf:
+      - $ref: pincfg-node.yaml#
+      - $ref: pinmux-node.yaml#
+
+    description: >
+      Pin controller client devices use pin configuration subnodes (children
+      and grandchildren) for desired pin configuration.
+
+      Client device subnodes use below standard properties.
+
+    properties:
+      pins:
+        description:
+          List of gpio pins affected by the properties specified in this
+          subnode (either this or "groups" must be specified).
+        items:
+          pattern: '^((aon_)?s?gpio[0-6]?[0-9])|(emmc_(clk|cmd|dat[0-7]|ds))$'
+
+      function:
+        description:
+          Specify the alternative function to be configured for the specified
+          pins.
+        enum: [ gpio, alt1, alt2, alt3, alt4, alt5, alt6, alt7, alt8,
+                aon_cpu_standbyb, aon_fp_4sec_resetb, aon_gpclk, aon_pwm,
+                arm_jtag, aud_fs_clk0, avs_pmu_bsc, bsc_m0, bsc_m1, bsc_m2,
+                bsc_m3, clk_observe, ctl_hdmi_5v, enet0, enet0_mii, enet0_rgmii,
+                ext_sc_clk, fl0, fl1, gpclk0, gpclk1, gpclk2, hdmi_tx0_auto_i2c,
+                hdmi_tx0_bsc, hdmi_tx1_auto_i2c, hdmi_tx1_bsc, i2s_in, i2s_out,
+                ir_in, mtsif, mtsif_alt, mtsif_alt1, pdm, pkt, pm_led_out, sc0,
+                sd0, sd2, sd_card_a, sd_card_b, sd_card_c, sd_card_d, sd_card_e,
+                sd_card_f, sd_card_g, spdif_out, spi_m, spi_s, sr_edm_sense, te0,
+                te1, tsio, uart0, uart1, uart2, usb_pwr, usb_vbus, uui, vc_i2c0,
+                vc_i2c3, vc_i2c4, vc_i2c5, vc_i2csl, vc_pcm, vc_pwm0, vc_pwm1,
+                vc_spi0, vc_spi3, vc_spi4, vc_spi5, vc_uart0, vc_uart2, vc_uart3,
+                vc_uart4 ]
+
+      bias-disable: true
+      bias-pull-down: true
+      bias-pull-up: true
+
+    required:
+      - pins
+
+    if:
+      properties:
+        pins:
+          not:
+            contains:
+              pattern: "^emmc_(clk|cmd|dat[0-7]|ds)$"
+    then:
+      required:
+        - function
+    else:
+      properties:
+        function: false
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    brcm_pinctrl: pinctrl@7d504100 {
+        compatible = "brcm,bcm2712c0-pinctrl";
+        reg = <0x7d504100 0x30>;
+
+        bt-shutdown-default-state {
+           function = "gpio";
+           pins = "gpio29";
+        };
+
+        uarta-default-state {
+            rts-tx-pins {
+                function = "uart0";
+                pins = "gpio24", "gpio26";
+                bias-disable;
+            };
+
+            cts-rx-pins {
+                function = "uart0";
+                pins = "gpio25", "gpio27";
+                bias-pull-up;
+            };
+        };
+    };