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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/mediatek,mt7622-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek MT7622 Pin Controller Device Tree Bindings
+
+maintainers:
+ - Sean Wang <sean.wang@kernel.org>
+
+description: |+
+ The MediaTek's MT7622 Pin controller is used to control SoC pins.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt7622-pinctrl
+ - mediatek,mt7629-pinctrl
+
+ reg:
+ maxItems: 1
+
+ reg-names:
+ items:
+ - const: eint
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+ description: |
+ Number of cells in GPIO specifier. Since the generic GPIO
+ binding is used, the amount of cells must be specified as 2. See the below
+ mentioned gpio binding representation for description of particular cells.
+
+ interrupt-controller: true
+
+ interrupts:
+ maxItems: 1
+
+ "#interrupt-cells":
+ const: 2
+
+required:
+ - compatible
+ - reg
+ - gpio-controller
+ - "#gpio-cells"
+
+if:
+ required:
+ - interrupt-controller
+then:
+ required:
+ - reg-names
+ - interrupts
+ - "#interrupt-cells"
+
+patternProperties:
+ '-[0-9]+$':
+ type: object
+ additionalProperties: false
+ patternProperties:
+ 'mux':
+ type: object
+ additionalProperties: false
+ description: |
+ pinmux configuration nodes.
+ $ref: "/schemas/pinctrl/pinmux-node.yaml"
+ properties:
+ function:
+ description: |
+ A string containing the name of the function to mux to the group.
+ enum: [emmc, eth, i2c, i2s, ir, led, flash, pcie, pmic, pwm, sd,
+ spi, tdm, uart, watchdog, wifi]
+
+ groups:
+ description: |
+ An array of strings. Each string contains the name of a group.
+
+ drive-strength:
+ enum: [4, 8, 12, 16]
+
+ required:
+ - groups
+ - function
+
+ allOf:
+ - if:
+ properties:
+ function:
+ const: emmc
+ then:
+ properties:
+ groups:
+ enum: [emmc, emmc_rst]
+ - if:
+ properties:
+ function:
+ const: eth
+ then:
+ properties:
+ groups:
+ enum: [esw, esw_p0_p1, esw_p2_p3_p4, rgmii_via_esw,
+ rgmii_via_gmac1, rgmii_via_gmac2, mdc_mdio]
+ - if:
+ properties:
+ function:
+ const: i2c
+ then:
+ properties:
+ groups:
+ enum: [i2c0, i2c_0, i2c_1, i2c1_0, i2c1_1, i2c1_2, i2c2_0,
+ i2c2_1, i2c2_2]
+ - if:
+ properties:
+ function:
+ const: i2s
+ then:
+ properties:
+ groups:
+ enum: [i2s_in_mclk_bclk_ws, i2s1_in_data, i2s2_in_data,
+ i2s3_in_data, i2s4_in_data, i2s_out_mclk_bclk_ws,
+ i2s1_out_data, i2s2_out_data, i2s3_out_data,
+ i2s4_out_data]
+ - if:
+ properties:
+ function:
+ const: ir
+ then:
+ properties:
+ groups:
+ enum: [ir_0_tx, ir_1_tx, ir_2_tx, ir_0_rx, ir_1_rx, ir_2_rx]
+ - if:
+ properties:
+ function:
+ const: led
+ then:
+ properties:
+ groups:
+ enum: [ephy_leds, ephy0_led, ephy1_led, ephy2_led, ephy3_led,
+ ephy4_led, wled, wf2g_led, wf5g_led]
+ - if:
+ properties:
+ function:
+ const: flash
+ then:
+ properties:
+ groups:
+ enum: [par_nand, snfi, spi_nor]
+ - if:
+ properties:
+ function:
+ const: pcie
+ then:
+ properties:
+ groups:
+ enum: [pcie0_0_waken, pcie0_1_waken, pcie1_0_waken,
+ pcie0_0_clkreq, pcie0_1_clkreq, pcie1_0_clkreq,
+ pcie0_pad_perst, pcie1_pad_perst, pcie_pereset,
+ pcie_wake, pcie_clkreq]
+ - if:
+ properties:
+ function:
+ const: pmic
+ then:
+ properties:
+ groups:
+ enum: [pmic_bus]
+ - if:
+ properties:
+ function:
+ const: pwm
+ then:
+ properties:
+ groups:
+ enum: [pwm_ch1_0, pwm_ch1_1, pwm_ch1_2, pwm_ch2_0, pwm_ch2_1,
+ pwm_ch2_2, pwm_ch3_0, pwm_ch3_1, pwm_ch3_2, pwm_ch4_0,
+ pwm_ch4_1, pwm_ch4_2, pwm_ch4_3, pwm_ch5_0, pwm_ch5_1,
+ pwm_ch5_2, pwm_ch6_0, pwm_ch6_1, pwm_ch6_2, pwm_ch6_3,
+ pwm_ch7_0, pwm_0, pwm_1]
+ - if:
+ properties:
+ function:
+ const: sd
+ then:
+ properties:
+ groups:
+ enum: [sd_0, sd_1]
+ - if:
+ properties:
+ function:
+ const: spi
+ then:
+ properties:
+ groups:
+ enum: [spic0_0, spic0_1, spic1_0, spic1_1, spic2_0_wp_hold,
+ spic2_0, spi_0, spi_1, spi_wp, spi_hold]
+ - if:
+ properties:
+ function:
+ const: tdm
+ then:
+ properties:
+ groups:
+ enum: [tdm_0_out_mclk_bclk_ws, tdm_0_in_mclk_bclk_ws,
+ tdm_0_out_data, tdm_0_in_data, tdm_1_out_mclk_bclk_ws,
+ tdm_1_in_mclk_bclk_ws, tdm_1_out_data, tdm_1_in_data]
+ - if:
+ properties:
+ function:
+ const: uart
+ then:
+ properties:
+ groups:
+ enum: [uart0_0_tx_rx, uart1_0_tx_rx, uart1_0_rts_cts,
+ uart1_1_tx_rx, uart1_1_rts_cts, uart2_0_tx_rx,
+ uart2_0_rts_cts, uart2_1_tx_rx, uart2_1_rts_cts,
+ uart2_2_tx_rx, uart2_2_rts_cts, uart2_3_tx_rx,
+ uart3_0_tx_rx, uart3_1_tx_rx, uart3_1_rts_cts,
+ uart4_0_tx_rx, uart4_1_tx_rx, uart4_1_rts_cts,
+ uart4_2_tx_rx, uart4_2_rts_cts, uart0_txd_rxd,
+ uart1_0_txd_rxd, uart1_0_cts_rts, uart1_1_txd_rxd,
+ uart1_1_cts_rts, uart2_0_txd_rxd, uart2_0_cts_rts,
+ uart2_1_txd_rxd, uart2_1_cts_rts]
+ - if:
+ properties:
+ function:
+ const: watchdog
+ then:
+ properties:
+ groups:
+ enum: [watchdog]
+ - if:
+ properties:
+ function:
+ const: wifi
+ then:
+ properties:
+ groups:
+ enum: [wf0_2g, wf0_5g]
+
+ 'conf':
+ type: object
+ additionalProperties: false
+ description: |
+ pinconf configuration nodes.
+ $ref: "/schemas/pinctrl/pincfg-node.yaml"
+
+ properties:
+ groups:
+ description: |
+ An array of strings. Each string contains the name of a group.
+ Valid values are the same as the pinmux node.
+
+ pins:
+ description: |
+ An array of strings. Each string contains the name of a pin.
+ enum: [GPIO_A, I2S1_IN, I2S1_OUT, I2S_BCLK, I2S_WS, I2S_MCLK, TXD0,
+ RXD0, SPI_WP, SPI_HOLD, SPI_CLK, SPI_MOSI, SPI_MISO, SPI_CS,
+ I2C_SDA, I2C_SCL, I2S2_IN, I2S3_IN, I2S4_IN, I2S2_OUT,
+ I2S3_OUT, I2S4_OUT, GPIO_B, MDC, MDIO, G2_TXD0, G2_TXD1,
+ G2_TXD2, G2_TXD3, G2_TXEN, G2_TXC, G2_RXD0, G2_RXD1, G2_RXD2,
+ G2_RXD3, G2_RXDV, G2_RXC, NCEB, NWEB, NREB, NDL4, NDL5, NDL6,
+ NDL7, NRB, NCLE, NALE, NDL0, NDL1, NDL2, NDL3, MDI_TP_P0,
+ MDI_TN_P0, MDI_RP_P0, MDI_RN_P0, MDI_TP_P1, MDI_TN_P1,
+ MDI_RP_P1, MDI_RN_P1, MDI_RP_P2, MDI_RN_P2, MDI_TP_P2,
+ MDI_TN_P2, MDI_TP_P3, MDI_TN_P3, MDI_RP_P3, MDI_RN_P3,
+ MDI_RP_P4, MDI_RN_P4, MDI_TP_P4, MDI_TN_P4, PMIC_SCL,
+ PMIC_SDA, SPIC1_CLK, SPIC1_MOSI, SPIC1_MISO, SPIC1_CS,
+ GPIO_D, WATCHDOG, RTS3_N, CTS3_N, TXD3, RXD3, PERST0_N,
+ PERST1_N, WLED_N, EPHY_LED0_N, AUXIN0, AUXIN1, AUXIN2,
+ AUXIN3, TXD4, RXD4, RTS4_N, CST4_N, PWM1, PWM2, PWM3, PWM4,
+ PWM5, PWM6, PWM7, GPIO_E, TOP_5G_CLK, TOP_5G_DATA,
+ WF0_5G_HB0, WF0_5G_HB1, WF0_5G_HB2, WF0_5G_HB3, WF0_5G_HB4,
+ WF0_5G_HB5, WF0_5G_HB6, XO_REQ, TOP_RST_N, SYS_WATCHDOG,
+ EPHY_LED0_N_JTDO, EPHY_LED1_N_JTDI, EPHY_LED2_N_JTMS,
+ EPHY_LED3_N_JTCLK, EPHY_LED4_N_JTRST_N, WF2G_LED_N,
+ WF5G_LED_N, GPIO_9, GPIO_10, GPIO_11, GPIO_12, UART1_TXD,
+ UART1_RXD, UART1_CTS, UART1_RTS, UART2_TXD, UART2_RXD,
+ UART2_CTS, UART2_RTS, SMI_MDC, SMI_MDIO, PCIE_PERESET_N,
+ PWM_0, GPIO_0, GPIO_1, GPIO_2, GPIO_3, GPIO_4, GPIO_5,
+ GPIO_6, GPIO_7, GPIO_8, UART0_TXD, UART0_RXD, TOP_2G_CLK,
+ TOP_2G_DATA, WF0_2G_HB0, WF0_2G_HB1, WF0_2G_HB2, WF0_2G_HB3,
+ WF0_2G_HB4, WF0_2G_HB5, WF0_2G_HB6]
+
+ bias-disable: true
+
+ bias-pull-up: true
+
+ bias-pull-down: true
+
+ input-enable: true
+
+ input-disable: true
+
+ output-enable: true
+
+ output-low: true
+
+ output-high: true
+
+ input-schmitt-enable: true
+
+ input-schmitt-disable: true
+
+ drive-strength:
+ enum: [4, 8, 12, 16]
+
+ slew-rate:
+ enum: [0, 1]
+
+ mediatek,tdsel:
+ description: |
+ An integer describing the steps for output level shifter duty
+ cycle when asserted (high pulse width adjustment). Valid arguments
+ are from 0 to 15.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ mediatek,rdsel:
+ description: |
+ An integer describing the steps for input level shifter duty cycle
+ when asserted (high pulse width adjustment). Valid arguments are
+ from 0 to 63.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ required:
+ - pins
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pio: pinctrl@10211000 {
+ compatible = "mediatek,mt7622-pinctrl";
+ reg = <0 0x10211000 0 0x1000>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ pinctrl_eth_default: eth-0 {
+ mux-mdio {
+ groups = "mdc_mdio";
+ function = "eth";
+ drive-strength = <12>;
+ };
+
+ mux-gmac2 {
+ groups = "rgmii_via_gmac2";
+ function = "eth";
+ drive-strength = <12>;
+ };
+
+ mux-esw {
+ groups = "esw";
+ function = "eth";
+ drive-strength = <8>;
+ };
+
+ conf-mdio {
+ pins = "MDC";
+ bias-pull-up;
+ };
+ };
+ };
+ };