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Message-ID: <7c680bf2502ddfd2077306a46c69728d212386f9.1674409777.git.daniel@makrotopia.org>
Date: Sun, 22 Jan 2023 18:23:55 +0000
From: Daniel Golle <daniel@...rotopia.org>
To: linux-mediatek@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
Sean Wang <sean.wang@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
Sam Shih <sam.shih@...iatek.com>,
Jianhui Zhao <zhaojh329@...il.com>
Subject: [PATCH 1/2] dt-bindings: pinctrl: add bindings for MT7981 SoC
Add bindings for the MT7981 pinctrl driver, based on existing MT7986
pinctrl bindings.
Signed-off-by: Daniel Golle <daniel@...rotopia.org>
---
.../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..e76fe0d5083a3
--- /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@...rotopia.org>
+
+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@...00000 {
+ 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
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