[PATCH v3 3/4] dt-bindings: pinctrl: add binding for MT7988 SoC

Frank Wunderlich
2024-10-07T20:31:11Z

This adds bindings for MT7988 pinctrl driver.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
changes in v3:
- limit conf subnode name with optional suffix like mmc on mt7986
- match mux subnode without wildcards

changes in v2:
- drop gpio-cells description
- move ref in mux subnode up
- order uart-functions alphanumeric and fix typo
---
.../pinctrl/mediatek,mt7988-pinctrl.yaml | 569 ++++++++++++++++++
1 file changed, 569 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pinctrl/mediatek,mt7988-pinctrl.yaml

diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt7988-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7988-pinctrl.yaml
new file mode 100644
index 000000000000..7a719c4b46f3
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7988-pinctrl.yaml
@@ -0,0 +1,569 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/mediatek,mt7988-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT7988 Pin Controller
+
+maintainers:
+ - Sean Wang <sean.wang@kernel.org>
+
+description:
+ The MediaTek's MT7988 Pin controller is used to control SoC pins.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt7988-pinctrl
+
+ reg:
+ minItems: 7
+ maxItems: 7
+
+ reg-names:
+ items:
+ - const: gpio
+ - const: iocfg_tr
+ - const: iocfg_br
+ - const: iocfg_rb
+ - const: iocfg_lb
+ - const: iocfg_tl
+ - const: eint
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+
+ 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
+ $ref: /schemas/pinctrl/pinmux-node.yaml
+ description: |
+ pinmux configuration nodes.
+
+ The following table shows the effective values of "group", "function"
+ properties and chip pinout pins
+
+ groups function pins (in pin#)
+ ---------------------------------------------------------------------
+ "tops_jtag0_0" "jtag" 0, 1, 2, 3, 4
+ "wo0_jtag" "jtag" 50, 51, 52, 53, 54
+ "wo1_jtag" "jtag" 50, 51, 52, 53, 54
+ "wo2_jtag" "jtag" 50, 51, 52, 53, 54
+ "jtag" "jtag" 58, 59, 60, 61, 62
+ "tops_jtag0_1" "jtag" 58, 59, 60, 61, 62
+ "int_usxgmii" "int_usxgmii" 2, 3
+ "pwm0" "pwm" 57
+ "pwm1" "pwm" 21
+ "pwm2" "pwm" 80
+ "pwm3" "pwm" 81
+ "pwm4" "pwm" 82
+ "pwm5" "pwm" 83
+ "pwm6" "pwm" 69
+ "pwm7" "pwm" 70
+ "dfd" "dfd" 0, 1, 2, 3, 4
+ "xfi_phy0_i2c0" "i2c" 0, 1
+ "xfi_phy1_i2c0" "i2c" 0, 1
+ "xfi_phy_pll_i2c0" "i2c" 3, 4
+ "xfi_phy_pll_i2c1" "i2c" 3, 4
+ "i2c0_0" "i2c" 5, 6
+ "i2c1_sfp" "i2c" 5, 6
+ "xfi_pextp_phy0_i2c" "i2c" 5, 6
+ "xfi_pextp_phy1_i2c" "i2c" 5, 6
+ "i2c0_1" "i2c" 15, 16
+ "u30_phy_i2c0" "i2c" 15, 16
+ "u32_phy_i2c0" "i2c" 15, 16
+ "xfi_phy0_i2c1" "i2c" 15, 16
+ "xfi_phy1_i2c1" "i2c" 15, 16
+ "xfi_phy_pll_i2c2" "i2c" 15, 16
+ "i2c1_0" "i2c" 17, 18
+ "u30_phy_i2c1" "i2c" 17, 18
+ "u32_phy_i2c1" "i2c" 17, 18
+ "xfi_phy_pll_i2c3" "i2c" 17, 18
+ "sgmii0_i2c" "i2c" 17, 18
+ "sgmii1_i2c" "i2c" 17, 18
+ "i2c1_2" "i2c" 69, 70
+ "i2c2_0" "i2c" 69, 70
+ "i2c2_1" "i2c" 71, 72
+ "mdc_mdio0" "eth" 5, 6
+ "2p5g_ext_mdio" "eth" 28, 29
+ "gbe_ext_mdio" "eth" 30, 31
+ "mdc_mdio1" "eth" 69, 70
+ "pcie_wake_n0_0" "pcie" 7
+ "pcie_clk_req_n0_0" "pcie" 8
+ "pcie_wake_n3_0" "pcie" 9
+ "pcie_clk_req_n3" "pcie" 10
+ "pcie_clk_req_n0_1" "pcie" 10
+ "pcie_p0_phy_i2c" "pcie" 7, 8
+ "pcie_p1_phy_i2c" "pcie" 7, 8
+ "pcie_p3_phy_i2c" "pcie" 9, 10
+ "pcie_p2_phy_i2c" "pcie" 7, 8
+ "ckm_phy_i2c" "pcie" 9, 10
+ "pcie_wake_n0_1" "pcie" 13
+ "pcie_wake_n3_1" "pcie" 14
+ "pcie_2l_0_pereset" "pcie" 19
+ "pcie_1l_1_pereset" "pcie" 20
+ "pcie_clk_req_n2_1" "pcie" 63
+ "pcie_2l_1_pereset" "pcie" 73
+ "pcie_1l_0_pereset" "pcie" 74
+ "pcie_wake_n1_0" "pcie" 75
+ "pcie_clk_req_n1" "pcie" 76
+ "pcie_wake_n2_0" "pcie" 77
+ "pcie_clk_req_n2_0" "pcie" 78
+ "pcie_wake_n2_1" "pcie" 79
+ "pmic" "pmic" 11
+ "watchdog" "watchdog" 12
+ "spi0_wp_hold" "spi" 22, 23
+ "spi0" "spi" 24, 25, 26, 27
+ "spi1" "spi" 28, 29, 30, 31
+ "spi2" "spi" 32, 33, 34, 35
+ "spi2_wp_hold" "spi" 36, 37
+ "snfi" "flash" 22, 23, 24, 25, 26, 27
+ "emmc_45" "flash" 21, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37
+ "sdcard" "flash" 32, 33, 34, 35, 36, 37
+ "emmc_51" "flash" 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49
+ "uart2" "uart" 0, 1, 2, 3
+ "tops_uart0_0" "uart" 22, 23
+ "uart2_0" "uart" 28, 29, 30, 31
+ "uart1_0" "uart" 32, 33, 34, 35
+ "uart2_1" "uart" 32, 33, 34, 35
+ "net_wo0_uart_txd_0" "uart" 28
+ "net_wo1_uart_txd_0" "uart" 29
+ "net_wo2_uart_txd_0" "uart" 30
+ "tops_uart1_0" "uart" 28, 29
+ "tops_uart0_1" "uart" 30, 31
+ "tops_uart1_1" "uart" 36, 37
+ "uart0" "uart" 55, 56
+ "tops_uart0_2" "uart" 55, 56
+ "uart2_2" "uart" 50, 51, 52, 53
+ "uart1_1" "uart" 58, 59, 60, 61
+ "uart2_3" "uart" 58, 59, 60, 61
+ "uart1_2" "uart" 80, 81, 82, 83
+ "uart1_2_lite" "uart" 80, 81
+ "tops_uart1_2" "uart" 80, 81
+ "net_wo0_uart_txd_1" "uart" 80
+ "net_wo1_uart_txd_1" "uart" 81
+ "net_wo2_uart_txd_1" "uart" 82
+ "udi" "udi" 32, 33, 34, 35, 36
+ "i2s" "audio" 50, 51, 52, 53, 54
+ "pcm" "audio" 50, 51, 52, 53
+ "gbe0_led1" "led" 58
+ "gbe1_led1" "led" 59
+ "gbe2_led1" "led" 60
+ "gbe3_led1" "led" 61
+ "2p5gbe_led1" "led" 62
+ "gbe0_led0" "led" 64
+ "gbe1_led0" "led" 65
+ "gbe2_led0" "led" 66
+ "gbe3_led0" "led" 67
+ "2p5gbe_led0" "led" 68
+ "drv_vbus_p1" "usb" 63
+ "drv_vbus" "usb" 79
+
+ properties:
+ function:
+ description:
+ A string containing the name of the function to mux to the group.
+ enum: [audio, dfd, eth, flash, i2c, int_usxgmii, jtag, led, pcie, pmic, pwm, spi,
+ uart, udi, usb, watchdog]
+ groups:
+ description:
+ An array of strings. Each string contains the name of a group.
+ required:
+ - function
+ - groups
+
+ allOf:
+ - if:
+ properties:
+ function:
+ const: audio
+ then:
+ properties:
+ groups:
+ enum: [i2s, pcm]
+ - if:
+ properties:
+ function:
+ const: jtag
+ then:
+ properties:
+ groups:
+ enum: [jtag, tops_jtag0_0, tops_jtag0_1, wo0_jtag, wo1_jtag, wo2_jtag]
+ - if:
+ properties:
+ function:
+ const: int_usxgmii
+ then:
+ properties:
+ groups:
+ enum: [int_usxgmii]
+ - if:
+ properties:
+ function:
+ const: dfd
+ then:
+ properties:
+ groups:
+ enum: [dfd]
+ - if:
+ properties:
+ function:
+ const: flash
+ then:
+ properties:
+ groups:
+ enum: [emmc_45, emmc_51, sdcard, snfi]
+ - if:
+ properties:
+ function:
+ const: eth
+ then:
+ properties:
+ groups:
+ enum: [2p5g_ext_mdio, gbe_ext_mdio, mdc_mdio0, mdc_mdio1]
+ - if:
+ properties:
+ function:
+ const: i2c
+ then:
+ properties:
+ groups:
+ enum: [xfi_phy0_i2c0, xfi_phy1_i2c0, xfi_phy_pll_i2c0,
+ xfi_phy_pll_i2c1, i2c0_0, i2c1_sfp, xfi_pextp_phy0_i2c,
+ xfi_pextp_phy1_i2c, i2c0_1, u30_phy_i2c0, u32_phy_i2c0,
+ xfi_phy0_i2c1, xfi_phy1_i2c1, xfi_phy_pll_i2c2, i2c1_0,
+ u30_phy_i2c1, u32_phy_i2c1, xfi_phy_pll_i2c3, sgmii0_i2c,
+ sgmii1_i2c, i2c1_2, i2c2_0, i2c2_1]
+ - if:
+ properties:
+ function:
+ const: led
+ then:
+ properties:
+ groups:
+ enum: [2p5gbe_led0, 2p5gbe_led1, gbe0_led0, gbe0_led1, gbe1_led0, gbe1_led1,
+ gbe2_led0, gbe2_led1, gbe3_led0, gbe3_led1, wf5g_led0, wf5g_led1]
+ - if:
+ properties:
+ function:
+ const: pcie
+ then:
+ properties:
+ groups:
+ items:
+ enum: [pcie_wake_n0_0, pcie_clk_req_n0_0, pcie_wake_n3_0,
+ pcie_clk_req_n3, pcie_p0_phy_i2c, pcie_p1_phy_i2c,
+ pcie_p3_phy_i2c, pcie_p2_phy_i2c, ckm_phy_i2c,
+ pcie_wake_n0_1, pcie_wake_n3_1, pcie_2l_0_pereset,
+ pcie_1l_1_pereset, pcie_clk_req_n2_1, pcie_2l_1_pereset,
+ pcie_1l_0_pereset, pcie_wake_n1_0, pcie_clk_req_n1,
+ pcie_wake_n2_0, pcie_clk_req_n2_0, pcie_wake_n2_1,
+ pcie_clk_req_n0_1]
+ maxItems: 3
+ - if:
+ properties:
+ function:
+ const: pmic
+ then:
+ properties:
+ groups:
+ items:
+ enum: [pmic]
+ maxItems: 1
+ - if:
+ properties:
+ function:
+ const: pwm
+ then:
+ properties:
+ groups:
+ items:
+ enum: [pwm0, pwm1, pwm2, pwm3, pwm4, pwm5, pwm6, pwm7]
+ maxItems: 2
+ - if:
+ properties:
+ function:
+ const: spi
+ then:
+ properties:
+ groups:
+ items:
+ enum: [spi0, spi0_wp_hold, spi1, spi2, spi2_wp_hold]
+ maxItems: 2
+ - if:
+ properties:
+ function:
+ const: uart
+ then:
+ properties:
+ groups:
+ items:
+ enum: [net_wo0_uart_txd_0, net_wo0_uart_txd_1, net_wo1_uart_txd_0,
+ net_wo1_uart_txd_1, net_wo2_uart_txd_0, net_wo2_uart_txd_1,
+ tops_uart0_0, tops_uart0_1, tops_uart0_2, tops_uart1_0,
+ tops_uart1_1, tops_uart1_2, uart0, uart1_0, uart1_1, uart1_2,
+ uart1_2_lite, uart2, uart2_0, uart2_1, uart2_3]
+ maxItems: 2
+ - if:
+ properties:
+ function:
+ const: watchdog
+ then:
+ properties:
+ groups:
+ enum: [watchdog]
+ - if:
+ properties:
+ function:
+ const: udi
+ then:
+ properties:
+ groups:
+ items:
+ enum: [udi]
+ maxItems: 1
+ - if:
+ properties:
+ function:
+ const: usb
+ then:
+ properties:
+ groups:
+ items:
+ enum: [drv_vbus, drv_vbus_p1]
+ maxItems: 1
+ '^conf(-[-a-z]*)?$':
+ 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: [UART2_RXD, UART2_TXD, UART2_CTS, UART2_RTS, GPIO_A, SMI_0_MDC,
+ SMI_0_MDIO, PCIE30_2L_0_WAKE_N, PCIE30_2L_0_CLKREQ_N,
+ PCIE30_1L_1_WAKE_N, PCIE30_1L_1_CLKREQ_N, GPIO_P, WATCHDOG,
+ GPIO_RESET, GPIO_WPS, PMIC_I2C_SCL, PMIC_I2C_SDA, I2C_1_SCL,
+ I2C_1_SDA, PCIE30_2L_0_PRESET_N, PCIE30_1L_1_PRESET_N, PWMD1,
+ SPI0_WP, SPI0_HOLD, SPI0_CSB, SPI0_MISO, SPI0_MOSI, SPI0_CLK,
+ SPI1_CSB, SPI1_MISO, SPI1_MOSI, SPI1_CLK, SPI2_CLK, SPI2_MOSI,
+ SPI2_MISO, SPI2_CSB, SPI2_HOLD, SPI2_WP, EMMC_RSTB, EMMC_DSL,
+ EMMC_CK, EMMC_CMD, EMMC_DATA_7, EMMC_DATA_6, EMMC_DATA_5,
+ EMMC_DATA_4, EMMC_DATA_3, EMMC_DATA_2, EMMC_DATA_1,
+ EMMC_DATA_0, PCM_FS_I2S_LRCK, PCM_CLK_I2S_BCLK,
+ PCM_DRX_I2S_DIN, PCM_DTX_I2S_DOUT, PCM_MCK_I2S_MCLK,
+ UART0_RXD, UART0_TXD, PWMD0, JTAG_JTDI, JTAG_JTDO, JTAG_JTMS,
+ JTAG_JTCLK, JTAG_JTRST_N, USB_DRV_VBUS_P1, LED_A, LED_B, LED_C,
+ LED_D, LED_E, GPIO_B, GPIO_C, I2C_2_SCL, I2C_2_SDA,
+ PCIE30_2L_1_PRESET_N, PCIE30_1L_0_PRESET_N,
+ PCIE30_2L_1_WAKE_N, PCIE30_2L_1_CLKREQ_N,
+ PCIE30_1L_0_WAKE_N, PCIE30_1L_0_CLKREQ_N, USB_DRV_VBUS_P0,
+ UART1_RXD, UART1_TXD, UART1_CTS, UART1_RTS]
+ maxItems: 84
+
+ 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 settings 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 settings 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@1001f000 {
+ compatible = "mediatek,mt7988-pinctrl";
+ reg = <0 0x1001f000 0 0x1000>,
+ <0 0x11c10000 0 0x1000>,
+ <0 0x11d00000 0 0x1000>,
+ <0 0x11d20000 0 0x1000>,
+ <0 0x11e00000 0 0x1000>,
+ <0 0x11f00000 0 0x1000>,
+ <0 0x1000b000 0 0x1000>;
+ reg-names = "gpio", "iocfg_tr",
+ "iocfg_br", "iocfg_rb",
+ "iocfg_lb", "iocfg_tl", "eint";
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pio 0 0 84>;
+ interrupt-controller;
+ interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ #interrupt-cells = <2>;
+
+ i2c0_pins: i2c0-g0-pins {
+ mux {
+ function = "i2c";
+ groups = "i2c0_1";
+ };
+ };
+
+ mdio0_pins: mdio0-pins {
+ mux {
+ function = "eth";
+ groups = "mdc_mdio0";
+ };
+
+ conf {
+ pins = "SMI_0_MDC", "SMI_0_MDIO";
+ drive-strength = <MTK_DRIVE_8mA>;
+ };
+ };
+
+ mmc0_pins_emmc_51: mmc0-emmc-51-pins {
+ mux {
+ function = "flash";
+ groups = "emmc_51";
+ };
+ };
+
+ mmc0_pins_sdcard: mmc0-sdcard-pins {
+ mux {
+ function = "flash";
+ groups = "sdcard";
+ };
+ };
+
+ pcie0_pins: pcie0-pins {
+ mux {
+ function = "pcie";
+ groups = "pcie_2l_0_pereset", "pcie_clk_req_n0_0",
+ "pcie_wake_n0_0";
+ };
+ };
+
+ pcie1_pins: pcie1-pins {
+ mux {
+ function = "pcie";
+ groups = "pcie_2l_1_pereset", "pcie_clk_req_n1",
+ "pcie_wake_n1_0";
+ };
+ };
+
+ pcie2_pins: pcie2-pins {
+ mux {
+ function = "pcie";
+ groups = "pcie_1l_0_pereset", "pcie_clk_req_n2_0",
+ "pcie_wake_n2_0";
+ };
+ };
+
+ pcie3_pins: pcie3-pins {
+ mux {
+ function = "pcie";
+ groups = "pcie_1l_1_pereset", "pcie_clk_req_n3",
+ "pcie_wake_n3_0";
+ };
+ };
+
+ uart0_pins: uart0-pins {
+ mux {
+ function = "uart";
+ groups = "uart0";
+ };
+ };
+ };
+ };
--
2.43.0