Add bindings for the MT7981 pinctrl driver. As MT7981 has most features in common with MT7986 (but has a different layout in terms on pinctrl and clocks), the existing mediatek,mt7986-pinctrl.yaml was used as an example to create a similar document covering MT7981. Signed-off-by: Daniel Golle <daniel@xxxxxxxxxxxxxx> --- .../pinctrl/mediatek,mt7981-pinctrl.yaml | 475 ++++++++++++++++++ 1 file changed, 475 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/mediatek,mt7981-pinctrl.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt7981-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7981-pinctrl.yaml new file mode 100644 index 0000000000000..74c66fbcb2ae6 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7981-pinctrl.yaml @@ -0,0 +1,475 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/mediatek,mt7981-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mediatek MT7981 Pin Controller + +maintainers: + - Daniel Golle <daniel@xxxxxxxxxxxxxx> + +description: + The MediaTek's MT7981 Pin controller is used to control SoC pins. + +properties: + compatible: + enum: + - mediatek,mt7981-pinctrl + + reg: + minItems: 9 + maxItems: 9 + + reg-names: + items: + - const: gpio + - const: iocfg_rt + - const: iocfg_rm + - const: iocfg_rb + - const: iocfg_lb + - const: iocfg_bl + - const: iocfg_tm + - const: iocfg_tl + - 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. + + gpio-ranges: + minItems: 1 + maxItems: 5 + description: GPIO valid number range. + + interrupt-controller: true + + interrupts: + maxItems: 1 + + "#interrupt-cells": + const: 2 + +allOf: + - $ref: pinctrl.yaml# + +required: + - compatible + - reg + - reg-names + - gpio-controller + - "#gpio-cells" + +patternProperties: + '-pins$': + type: object + additionalProperties: false + + patternProperties: + '^.*mux.*$': + type: object + additionalProperties: false + description: | + pinmux configuration nodes. + + The following table shows the effective values of "group", "function" + properties and chip pinout pins + + groups function pins (in pin#) + --------------------------------------------------------------------- + "wa_aice1" "wa_aice" 0, 1 + "wa_aice2" "wa_aice" 0, 1 + "wm_uart_0" "uart" 0, 1 + "dfd" "dfd" 0, 1, 4, 5 + "watchdog" "watchdog" 2 + "pcie_pereset" "pcie" 3 + "jtag" "jtag" 4, 5, 6, 7, 8 + "wm_jtag_0" "jtag" 4, 5, 6, 7, 8 + "wo0_jtag_0" "jtag" 9, 10, 11, 12, 13 + "uart2_0" "uart" 4, 5, 6, 7 + "gbe_led0" "led" 8 + "pta_ext_0" "pta" 4, 5, 6 + "pwm2" "pwm" 7 + "net_wo0_uart_txd_0" "uart" 8 + "spi1_0" "spi" 4, 5, 6, 7 + "i2c0_0" "i2c" 6, 7 + "dfd_ntrst" "dfd" 8 + "wm_aice1" "wa_aice" 9, 10 + "pwm0_0" "pwm" 13 + "pwm0_1" "pwm" 15 + "pwm1_0" "pwm" 14 + "pwm1_1" "pwm" 15 + "net_wo0_uart_txd_1" "uart" 14 + "net_wo0_uart_txd_2" "uart" 15 + "gbe_led1" "led" 13 + "pcm" "pcm" 9, 10, 11, 12, 13, 25 + "watchdog1" "watchdog" 13 + "udi" "udi" 9, 10, 11, 12, 13 + "drv_vbus" "usb" 14 + "emmc_45" "flash" 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 + "snfi" "flash" 16, 17, 18, 19, 20, 21 + "spi0" "spi" 16, 17, 18, 19 + "spi0_wp_hold" "spi" 20, 21 + "spi1_1" "spi" 22, 23, 24, 25 + "spi2" "spi" 26, 27, 28, 29 + "spi2_wp_hold" "spi" 30, 31 + "uart1_0" "uart" 16, 17, 18, 19 + "uart1_1" "uart" 26, 27, 28, 29 + "uart2_1" "uart" 22, 23, 24, 25 + "pta_ext_1" "pta" 22, 23, 24 + "wm_aurt_1" "uart" 20, 21 + "wm_aurt_2" "uart" 30, 31 + "wm_jtag_1" "jtag" 20, 21, 22, 23, 24 + "wo0_jtag_1" "jtag" 25, 26, 27, 28, 29 + "wa_aice3" "wa_aice" 28, 20 + "wm_aice2" "wa_aice" 30, 31 + "i2c0_1" "i2c" 30, 31 + "u2_phy_i2c" "i2c" 30, 31 + "uart0" "uart" 32, 33 + "sgmii1_phy_i2c" "i2c" 32, 33 + "u3_phy_i2c" "i2c" 32, 33 + "sgmii0_phy_i2c" "i2c" 32, 33 + "pcie_clk" "pcie" 34 + "pcie_wake" "pcie" 35 + "i2c0_2" "i2c" 36, 37 + "smi_mdc_mdio" "eth" 36, 37 + "gbe_ext_mdc_mdio" "eth" 36, 37 + "wf0_mode1" "eth" 40, 41, 42, 43, 44, 45, 46, 47, 48, + 49, 50, 51, 52, 53, 54, 55, 56 + + "wf0_mode3" "eth" 45, 46, 47, 48, 49, 51 + "wf2g_led0" "led" 30 + "wf2g_led1" "led" 34 + "wf5g_led0" "led" 31 + "wf5g_led1" "led" 35 + "mt7531_int" "eth" 38 + "ant_sel" "ant" 14, 15, 16, 17, 18, 19, 20, 21, 22 + 23, 24, 25, 34, 35 + + $ref: /schemas/pinctrl/pinmux-node.yaml + properties: + function: + description: + A string containing the name of the function to mux to the group. + enum: [wa_aice, dfd, jtag, pta, pcm, udi, usb, ant, eth, i2c, led, + pwm, spi, uart, watchdog, flash, pcie] + groups: + description: + An array of strings. Each string contains the name of a group. + + required: + - function + - groups + + allOf: + - if: + properties: + function: + const: wa_aice + then: + properties: + groups: + enum: [wa_aice1, wa_aice2, wm_aice1_1, wa_aice3, wm_aice1_2] + - if: + properties: + function: + const: dfd + then: + properties: + groups: + enum: [dfd, dfd_ntrst] + - if: + properties: + function: + const: jtag + then: + properties: + groups: + enum: [jtag, wm_jtag_0, wo0_jtag_0, wo0_jtag_1, wm_jtag_1] + - if: + properties: + function: + const: pta + then: + properties: + groups: + enum: [pta_ext_0, pta_ext_1] + - if: + properties: + function: + const: pcm + then: + properties: + groups: + enum: [pcm] + - if: + properties: + function: + const: udi + then: + properties: + groups: + enum: [udi] + - if: + properties: + function: + const: usb + then: + properties: + groups: + enum: [drv_vbus] + - if: + properties: + function: + const: ant + then: + properties: + groups: + enum: [ant_sel] + - if: + properties: + function: + const: eth + then: + properties: + groups: + enum: [smi_mdc_mdio, gbe_ext_mdc_mdio, wf0_mode1, wf0_mode3, + mt7531_int] + - if: + properties: + function: + const: i2c + then: + properties: + groups: + enum: [i2c0_0, i2c0_1, u2_phy_i2c, sgmii1_phy_i2c, u3_phy_i2c, + sgmii0_phy_i2c, i2c0_2] + - if: + properties: + function: + const: led + then: + properties: + groups: + enum: [gbe_led0, gbe_led1, wf2g_led0, wf2g_led1, wf5g_led0, wf5g_led1] + - if: + properties: + function: + const: pwm + then: + properties: + groups: + items: + enum: [pwm2, pwm0_0, pwm0_1, pwm1_0, pwm1_1] + maxItems: 3 + - if: + properties: + function: + const: spi + then: + properties: + groups: + items: + enum: [spi1_0, spi0, spi0_wp_hold, spi1_1, spi2, spi2_wp_hold] + maxItems: 4 + - if: + properties: + function: + const: uart + then: + properties: + groups: + items: + enum: [wm_uart_0, uart2_0, net_wo0_uart_txd_0, + net_wo0_uart_txd_1, net_wo0_uart_txd_2, uart1_0, + uart1_1, uart2_1, wm_aurt_1, wm_aurt_2, uart0] + - if: + properties: + function: + const: watchdog + then: + properties: + groups: + enum: [watchdog] + - if: + properties: + function: + const: flash + then: + properties: + groups: + items: + enum: [emmc_45, snfi] + maxItems: 1 + - if: + properties: + function: + const: pcie + then: + properties: + groups: + items: + enum: [pcie_clk, pcie_wake, pcie_pereset] + maxItems: 3 + + '^.*conf.*$': + type: object + additionalProperties: false + description: pinconf configuration nodes. + $ref: /schemas/pinctrl/pincfg-node.yaml + + properties: + pins: + description: + An array of strings. Each string contains the name of a pin. + items: + enum: [GPIO_WPS, GPIO_RESET, SYS_WATCHDOG, PCIE_PERESET_N, + JTAG_JTDO, JTAG_JTDI, JTAG_JTMS, JTAG_JTCLK, JTAG_JTRST_N, + WO_JTAG_JTDO, WO_JTAG_JTDI, WO_JTAG_JTMS, WO_JTAG_JTCLK, + WO_JTAG_JTRST_N, USB_VBUS, PWM0, SPI0_CLK, SPI0_MOSI, + SPI0_MISO, SPI0_CS, SPI0_HOLD, SPI0_WP, SPI1_CLK, SPI1_MOSI, + SPI1_MISO, SPI1_CS, SPI2_CLK, SPI2_MOSI, SPI2_MISO, SPI2_CS, + SPI2_HOLD, SPI2_WP, UART0_RXD, UART0_TXD, PCIE_CLK_REQ, + PCIE_WAKE_N, SMI_MDC, SMI_MDIO, GBE_INT, GBE_RESET, + WF_DIG_RESETB, WF_CBA_RESETB, WF_XO_REQ, WF_TOP_CLK, + WF_TOP_DATA, WF_HB1, WF_HB2, WF_HB3, WF_HB4, WF_HB0, + WF_HB0_B, WF_HB5, WF_HB6, WF_HB7, WF_HB8, WF_HB9, WF_HB10] + maxItems: 57 + + bias-disable: true + + bias-pull-up: + oneOf: + - type: boolean + description: normal pull up. + - enum: [100, 101, 102, 103] + description: > + PUPD/R1/R0 pull down type. See MTK_PUPD_SET_R1R0 defines in + dt-bindings/pinctrl/mt65xx.h. + + bias-pull-down: + oneOf: + - type: boolean + description: normal pull down. + - enum: [100, 101, 102, 103] + description: > + PUPD/R1/R0 pull down type. See MTK_PUPD_SET_R1R0 defines in + dt-bindings/pinctrl/mt65xx.h. + + 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: [2, 4, 6, 8, 10, 12, 14, 16] + + mediatek,pull-up-adv: + description: | + Valid arguments for 'mediatek,pull-up-adv' are '0', '1', '2', '3' + Pull up setings for 2 pull resistors, R0 and R1. Valid arguments + are described as below: + 0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled. + 1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled. + 2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled. + 3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + + mediatek,pull-down-adv: + description: | + Valid arguments for 'mediatek,pull-up-adv' are '0', '1', '2', '3' + Pull down setings for 2 pull resistors, R0 and R1. Valid arguments + are described as below: + 0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled. + 1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled. + 2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled. + 3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + + required: + - pins + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/pinctrl/mt65xx.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + pio: pinctrl@11d00000 { + compatible = "mediatek,mt7981-pinctrl"; + reg = <0 0x11d00000 0 0x1000>, + <0 0x11c00000 0 0x1000>, + <0 0x11c10000 0 0x1000>, + <0 0x11d20000 0 0x1000>, + <0 0x11e00000 0 0x1000>, + <0 0x11e20000 0 0x1000>, + <0 0x11f00000 0 0x1000>, + <0 0x11f10000 0 0x1000>, + <0 0x1000b000 0 0x1000>; + reg-names = "gpio", "iocfg_rt", "iocfg_rm", + "iocfg_rb", "iocfg_lb", "iocfg_bl", + "iocfg_tm", "iocfg_tl", "eint"; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pio 0 0 56>; + interrupt-controller; + interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>; + interrupt-parent = <&gic>; + #interrupt-cells = <2>; + + mdio_pins: mdio-pins { + mux { + function = "eth"; + groups = "smi_mdc_mdio"; + }; + }; + + spi0_flash_pins: spi0-pins { + mux { + function = "spi"; + groups = "spi0", "spi0_wp_hold"; + }; + + conf-pu { + pins = "SPI0_CS", "SPI0_HOLD", "SPI0_WP"; + drive-strength = <MTK_DRIVE_8mA>; + bias-pull-up = <MTK_PUPD_SET_R1R0_11>; + }; + + conf-pd { + pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO"; + drive-strength = <MTK_DRIVE_8mA>; + bias-pull-down = <MTK_PUPD_SET_R1R0_11>; + }; + }; + + pcie_pins: pcie-pins { + mux { + function = "pcie"; + groups = "pcie_clk", "pcie_wake", "pcie_pereset"; + }; + }; + + }; + }; -- 2.39.1
