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Date: Wed, 2 Aug 2023 18:33:54 -0600
From: Rob Herring <robh@...nel.org>
To: TY Chang <tychang@...ltek.com>
Cc: Linus Walleij <linus.walleij@...aro.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, linux-gpio@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/7] dt-bindings: pinctrl: realtek: add RTD1315E pinctrl
binding
On Wed, Jul 26, 2023 at 05:04:07PM +0800, TY Chang wrote:
> Add device tree bindings for RTD1315E.
>
> Signed-off-by: TY Chang <tychang@...ltek.com>
> ---
> .../pinctrl/realtek,rtd1315e-pinctrl.yaml | 165 ++++++++++++++++++
> 1 file changed, 165 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/pinctrl/realtek,rtd1315e-pinctrl.yaml
>
> diff --git a/Documentation/devicetree/bindings/pinctrl/realtek,rtd1315e-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/realtek,rtd1315e-pinctrl.yaml
> new file mode 100644
> index 000000000000..b8fb6335ed65
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/realtek,rtd1315e-pinctrl.yaml
> @@ -0,0 +1,165 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright 2023 Realtek Semiconductor Corporation
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/realtek,rtd1315e-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Realtek DHC RTD1315E Pin Controller
> +
> +maintainers:
> + - TY Chang <tychang@...ltek.com>
> +
> +description: |
> + Binding for Realtek DHC RTD1315E SoC pin control.
> +
> +properties:
> + compatible:
> + const: realtek,rtd13xxe-pinctrl
Don't use wildcards in compatible strings.
> +
> + reg:
> + maxItems: 1
> +
> +patternProperties:
> + '^.*$':
> + if:
> + type: object
For new bindings, define a suffix (e.g. "-pins") for the node name.
> + then:
> + allOf:
> + - $ref: pincfg-node.yaml#
> + - $ref: pinmux-node.yaml#
> +
> + properties:
> + pins:
> + items:
> + enum: [ gpio_0, gpio_1, emmc_rst_n, emmc_dd_sb, emmc_clk, emmc_cmd,
> + gpio_6, gpio_7, gpio_8, gpio_9, gpio_10, gpio_11, gpio_12,
> + gpio_13, gpio_14, gpio_15, gpio_16, gpio_17, gpio_18, gpio_19,
> + gpio_20, emmc_data_0, emmc_data_1, emmc_data_2, usb_cc2, gpio_25,
> + gpio_26, gpio_27, gpio_28, gpio_29, gpio_30, gpio_31, gpio_32,
> + gpio_33, gpio_34, gpio_35, hif_data, hif_en, hif_rdy, hif_clk,
> + gpio_dummy_40, gpio_dummy_41, gpio_dummy_42, gpio_dummy_43,
> + gpio_dummy_44, gpio_dummy_45, gpio_46, gpio_47, gpio_48, gpio_49,
> + gpio_50, usb_cc1, emmc_data_3, emmc_data_4, ir_rx, ur0_rx, ur0_tx,
> + gpio_57, gpio_58, gpio_59, gpio_60, gpio_61, gpio_62, gpio_dummy_63,
> + gpio_dummy_64, gpio_dummy_65, gpio_66, gpio_67, gpio_68, gpio_69,
> + gpio_70, gpio_71, gpio_72, gpio_dummy_73, emmc_data_5, emmc_data_6,
> + emmc_data_7, gpio_dummy_77, gpio_78, gpio_79, gpio_80, gpio_81,
> + ur2_loc, gspi_loc, hi_width, sf_en, arm_trace_dbg_en,
> + ejtag_aucpu_loc, ejtag_acpu_loc, ejtag_vcpu_loc, ejtag_scpu_loc,
> + dmic_loc, vtc_dmic_loc, vtc_tdm_loc, vtc_i2si_loc, tdm_ai_loc,
> + ai_loc, spdif_loc, hif_en_loc, scan_switch, wd_rset, boot_sel,
> + reset_n, testmode ]
> +
> + function:
> + enum: [ gpio, nf, emmc, ao, gspi_loc0, gspi_loc1, uart0, uart1,
> + uart2_loc0, uart2_loc1, i2c0, i2c1, i2c4, i2c5, pcie1,
> + etn_led, etn_phy, spi, pwm0_loc0, pwm0_loc1, pwm1_loc0,
> + pwm1_loc1, pwm2_loc0, pwm2_loc1, pwm3_loc0, pwm3_loc1,
> + spdif_optical_loc0, spdif_optical_loc1, usb_cc1, usb_cc2,
> + sd, dmic_loc0, dmic_loc1, ai_loc0, ai_loc1, tdm_ai_loc0,
> + tdm_ai_loc1, hi_loc0, hi_m, vtc_i2so, vtc_i2si_loc0,
> + vtc_i2si_loc1, vtc_dmic_loc0, vtc_dmic_loc1, vtc_tdm_loc0,
> + vtc_tdm_loc1, dc_fan, pll_test_loc0, pll_test_loc1,
> + ir_rx, uart2_disable, gspi_disable, hi_width_disable,
> + hi_width_1bit, sf_disable, sf_enable, scpu_ejtag_loc0,
> + scpu_ejtag_loc1, scpu_ejtag_loc2, scpu_ejtag_loc3,
> + acpu_ejtag_loc0, acpu_ejtag_loc1, acpu_ejtag_loc2,
> + vcpu_ejtag_loc0, vcpu_ejtag_loc1, vcpu_ejtag_loc2,
> + aucpu_ejtag_loc0, aucpu_ejtag_loc1, aucpu_ejtag_loc2,
> + gpu_ejtag, iso_tristate, dbg_out0, dbg_out1, standby_dbg,
> + spdif, arm_trace_debug_disable, arm_trace_debug_enable,
> + aucpu_ejtag_disable, acpu_ejtag_disable, vcpu_ejtag_disable,
> + scpu_ejtag_disable, vtc_dmic_loc_disable, vtc_tdm_disable,
> + vtc_i2si_disable, tdm_ai_disable, ai_disable, spdif_disable,
> + hif_disable, hif_enable, test_loop, pmic_pwrup ]
> +
> +
> + drive-strength:
> + enum: [4, 8]
> +
> + bias-pull-down: true
> +
> + bias-pull-up: true
> +
> + bias-disable: true
> +
> + input-schmitt-enable: true
> +
> + input-schmitt-disable: true
> +
> + drive-push-pull: true
> +
> + power-source:
> + description: |
> + Valid arguments are described as below:
> + 0: power supply of 1.8V
> + 1: power supply of 3.3V
> + enum: [0, 1]
> +
> + realtek,pdrive:
> + description: |
> + An integer describing the level to adjust PMOS output driving capability.
> + $ref: /schemas/types.yaml#/definitions/uint32
> + minimum: 0
> + maximum: 7
> +
> + realtek,ndrive:
> + description: |
> + An integer describing the level to adjust NMOS output driving capability.
> + $ref: /schemas/types.yaml#/definitions/uint32
> + minimum: 0
> + maximum: 7
> +
> + realtek,dcycle:
> + description: |
> + An integer describing the level to adjust output duty cycle.
> + Valid arguments are described as below:
> + 0: 0ns
> + 2: + 0.25ns
> + 3: + 0.5ns
> + 4: -0.25ns
> + 5: -0.5ns
> + $ref: /schemas/types.yaml#/definitions/uint32
> + enum: [ 0, 2, 3, 4, 5 ]
> +
> + required:
> + - pins
> +
> + additionalProperties: false
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + pinctrl@...00 {
> + compatible = "realtek,rtd13xxe-pinctrl";
> + reg = <0x4e000 0x130>;
> +
> + emmc_pins_hs200 {
Don't use '_' in node names.
> + pins = "emmc_clk",
> + "emmc_cmd",
> + "emmc_data_0",
> + "emmc_data_1",
> + "emmc_data_2",
> + "emmc_data_3",
> + "emmc_data_4",
> + "emmc_data_5",
> + "emmc_data_6",
> + "emmc_data_7";
> + function = "emmc";
> + realtek,pdrive = <0x2>;
> + realtek,ndrive = <0x2>;
> + };
> +
> + i2c_pins_0 {
> + pins = "gpio_12",
> + "gpio_13";
> + function = "i2c0";
> + drive-strength = <4>;
> + };
> + };
> --
> 2.41.0
>
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