dt-bindings: power: convert rockchip-io-domain.txt to YAML (742f62cb) · Commits · EulixOS / Software / Kernel

Documentation/devicetree/bindings/power/rockchip-io-domain.txt

deleted100644 → 0

+0 −135

Original line number	Diff line number	Diff line
		Rockchip SRAM for IO Voltage Domains:
		-------------------------------------

		IO domain voltages on some Rockchip SoCs are variable but need to be
		kept in sync between the regulators and the SoC using a special
		register.

		A specific example using rk3288:
		- If the regulator hooked up to a pin like SDMMC0_VDD is 3.3V then
		bit 7 of GRF_IO_VSEL needs to be 0. If the regulator hooked up to
		that same pin is 1.8V then bit 7 of GRF_IO_VSEL needs to be 1.

		Said another way, this driver simply handles keeping bits in the SoC's
		general register file (GRF) in sync with the actual value of a voltage
		hooked up to the pins.

		Note that this driver specifically doesn't include:
		- any logic for deciding what voltage we should set regulators to
		- any logic for deciding whether regulators (or internal SoC blocks)
		should have power or not have power

		If there were some other software that had the smarts of making
		decisions about regulators, it would work in conjunction with this
		driver. When that other software adjusted a regulator's voltage then
		this driver would handle telling the SoC about it. A good example is
		vqmmc for SD. In that case the dw_mmc driver simply is told about a
		regulator. It changes the regulator between 3.3V and 1.8V at the
		right time. This driver notices the change and makes sure that the
		SoC is on the same page.


		Required properties:
		- compatible: should be one of:
		- "rockchip,px30-io-voltage-domain" for px30
		- "rockchip,px30-pmu-io-voltage-domain" for px30 pmu-domains
		- "rockchip,rk3188-io-voltage-domain" for rk3188
		- "rockchip,rk3228-io-voltage-domain" for rk3228
		- "rockchip,rk3288-io-voltage-domain" for rk3288
		- "rockchip,rk3328-io-voltage-domain" for rk3328
		- "rockchip,rk3368-io-voltage-domain" for rk3368
		- "rockchip,rk3368-pmu-io-voltage-domain" for rk3368 pmu-domains
		- "rockchip,rk3399-io-voltage-domain" for rk3399
		- "rockchip,rk3399-pmu-io-voltage-domain" for rk3399 pmu-domains
		- "rockchip,rv1108-io-voltage-domain" for rv1108
		- "rockchip,rv1108-pmu-io-voltage-domain" for rv1108 pmu-domains

		Deprecated properties:
		- rockchip,grf: phandle to the syscon managing the "general register files"
		Systems should move the io-domains to a sub-node of the grf simple-mfd.

		You specify supplies using the standard regulator bindings by including
		a phandle the relevant regulator. All specified supplies must be able
		to report their voltage. The IO Voltage Domain for any non-specified
		supplies will be not be touched.

		Possible supplies for PX30:
		- vccio6-supply: The supply connected to VCCIO6.
		- vccio1-supply: The supply connected to VCCIO1.
		- vccio2-supply: The supply connected to VCCIO2.
		- vccio3-supply: The supply connected to VCCIO3.
		- vccio4-supply: The supply connected to VCCIO4.
		- vccio5-supply: The supply connected to VCCIO5.
		- vccio-oscgpi-supply: The supply connected to VCCIO_OSCGPI.

		Possible supplies for PX30 pmu-domains:
		- pmuio1-supply: The supply connected to PMUIO1.
		- pmuio2-supply: The supply connected to PMUIO2.

		Possible supplies for rk3188:
		- ap0-supply: The supply connected to AP0_VCC.
		- ap1-supply: The supply connected to AP1_VCC.
		- cif-supply: The supply connected to CIF_VCC.
		- flash-supply: The supply connected to FLASH_VCC.
		- lcdc0-supply: The supply connected to LCD0_VCC.
		- lcdc1-supply: The supply connected to LCD1_VCC.
		- vccio0-supply: The supply connected to VCCIO0.
		- vccio1-supply: The supply connected to VCCIO1.
		Sometimes also labeled VCCIO1 and VCCIO2.

		Possible supplies for rk3228:
		- vccio1-supply: The supply connected to VCCIO1.
		- vccio2-supply: The supply connected to VCCIO2.
		- vccio3-supply: The supply connected to VCCIO3.
		- vccio4-supply: The supply connected to VCCIO4.

		Possible supplies for rk3288:
		- audio-supply: The supply connected to APIO4_VDD.
		- bb-supply: The supply connected to APIO5_VDD.
		- dvp-supply: The supply connected to DVPIO_VDD.
		- flash0-supply: The supply connected to FLASH0_VDD. Typically for eMMC
		- flash1-supply: The supply connected to FLASH1_VDD. Also known as SDIO1.
		- gpio30-supply: The supply connected to APIO1_VDD.
		- gpio1830 The supply connected to APIO2_VDD.
		- lcdc-supply: The supply connected to LCDC_VDD.
		- sdcard-supply: The supply connected to SDMMC0_VDD.
		- wifi-supply: The supply connected to APIO3_VDD. Also known as SDIO0.

		Possible supplies for rk3368:
		- audio-supply: The supply connected to APIO3_VDD.
		- dvp-supply: The supply connected to DVPIO_VDD.
		- flash0-supply: The supply connected to FLASH0_VDD. Typically for eMMC
		- gpio30-supply: The supply connected to APIO1_VDD.
		- gpio1830 The supply connected to APIO4_VDD.
		- sdcard-supply: The supply connected to SDMMC0_VDD.
		- wifi-supply: The supply connected to APIO2_VDD. Also known as SDIO0.

		Possible supplies for rk3368 pmu-domains:
		- pmu-supply: The supply connected to PMUIO_VDD.
		- vop-supply: The supply connected to LCDC_VDD.

		Possible supplies for rk3399:
		- bt656-supply: The supply connected to APIO2_VDD.
		- audio-supply: The supply connected to APIO5_VDD.
		- sdmmc-supply: The supply connected to SDMMC0_VDD.
		- gpio1830 The supply connected to APIO4_VDD.

		Possible supplies for rk3399 pmu-domains:
		- pmu1830-supply:The supply connected to PMUIO2_VDD.

		Example:

		io-domains {
		compatible = "rockchip,rk3288-io-voltage-domain";
		rockchip,grf = <&grf>;

		audio-supply = <&vcc18_codec>;
		bb-supply = <&vcc33_io>;
		dvp-supply = <&vcc_18>;
		flash0-supply = <&vcc18_flashio>;
		gpio1830-supply = <&vcc33_io>;
		gpio30-supply = <&vcc33_pmuio>;
		lcdc-supply = <&vcc33_lcd>;
		sdcard-supply = <&vccio_sd>;
		wifi-supply = <&vcc18_wl>;
		};

Documentation/devicetree/bindings/power/rockchip-io-domain.yaml

0 → 100644

+330 −0

Original line number	Diff line number	Diff line
		# SPDX-License-Identifier: GPL-2.0
		%YAML 1.2
		---
		$id: http://devicetree.org/schemas/power/rockchip-io-domain.yaml#
		$schema: http://devicetree.org/meta-schemas/core.yaml#

		title: Rockchip SRAM for IO Voltage Domains

		maintainers:
		- Heiko Stuebner <heiko@sntech.de>

		description: \|
		IO domain voltages on some Rockchip SoCs are variable but need to be
		kept in sync between the regulators and the SoC using a special
		register.

		A specific example using rk3288
		If the regulator hooked up to a pin like SDMMC0_VDD is 3.3V then
		bit 7 of GRF_IO_VSEL needs to be 0. If the regulator hooked up to
		that same pin is 1.8V then bit 7 of GRF_IO_VSEL needs to be 1.

		Said another way, this driver simply handles keeping bits in the SoCs
		General Register File (GRF) in sync with the actual value of a voltage
		hooked up to the pins.

		Note that this driver specifically does not include
		any logic for deciding what voltage we should set regulators to
		any logic for deciding whether regulators (or internal SoC blocks)
		should have power or not have power

		If there were some other software that had the smarts of making
		decisions about regulators, it would work in conjunction with this
		driver. When that other software adjusted a regulators voltage then
		this driver would handle telling the SoC about it. A good example is
		vqmmc for SD. In that case the dw_mmc driver simply is told about a
		regulator. It changes the regulator between 3.3V and 1.8V at the
		right time. This driver notices the change and makes sure that the
		SoC is on the same page.

		You specify supplies using the standard regulator bindings by including
		a phandle the relevant regulator. All specified supplies must be able
		to report their voltage. The IO Voltage Domain for any non-specified
		supplies will be not be touched.

		properties:
		compatible:
		enum:
		- rockchip,px30-io-voltage-domain
		- rockchip,px30-pmu-io-voltage-domain
		- rockchip,rk3188-io-voltage-domain
		- rockchip,rk3228-io-voltage-domain
		- rockchip,rk3288-io-voltage-domain
		- rockchip,rk3328-io-voltage-domain
		- rockchip,rk3368-io-voltage-domain
		- rockchip,rk3368-pmu-io-voltage-domain
		- rockchip,rk3399-io-voltage-domain
		- rockchip,rk3399-pmu-io-voltage-domain
		- rockchip,rv1108-io-voltage-domain
		- rockchip,rv1108-pmu-io-voltage-domain

		required:
		- compatible

		unevaluatedProperties: false

		allOf:
		- $ref: "#/$defs/px30"
		- $ref: "#/$defs/px30-pmu"
		- $ref: "#/$defs/rk3188"
		- $ref: "#/$defs/rk3228"
		- $ref: "#/$defs/rk3288"
		- $ref: "#/$defs/rk3328"
		- $ref: "#/$defs/rk3368"
		- $ref: "#/$defs/rk3368-pmu"
		- $ref: "#/$defs/rk3399"
		- $ref: "#/$defs/rk3399-pmu"
		- $ref: "#/$defs/rv1108"
		- $ref: "#/$defs/rv1108-pmu"

		$defs:
		px30:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,px30-io-voltage-domain

		then:
		properties:
		vccio1-supply:
		description: The supply connected to VCCIO1.
		vccio2-supply:
		description: The supply connected to VCCIO2.
		vccio3-supply:
		description: The supply connected to VCCIO3.
		vccio4-supply:
		description: The supply connected to VCCIO4.
		vccio5-supply:
		description: The supply connected to VCCIO5.
		vccio6-supply:
		description: The supply connected to VCCIO6.
		vccio-oscgpi-supply:
		description: The supply connected to VCCIO_OSCGPI.

		px30-pmu:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,px30-pmu-io-voltage-domain

		then:
		properties:
		pmuio1-supply:
		description: The supply connected to PMUIO1.
		pmuio2-supply:
		description: The supply connected to PMUIO2.

		rk3188:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rk3188-io-voltage-domain

		then:
		properties:
		ap0-supply:
		description: The supply connected to AP0_VCC.
		ap1-supply:
		description: The supply connected to AP1_VCC.
		cif-supply:
		description: The supply connected to CIF_VCC.
		flash-supply:
		description: The supply connected to FLASH_VCC.
		lcdc0-supply:
		description: The supply connected to LCD0_VCC.
		lcdc1-supply:
		description: The supply connected to LCD1_VCC.
		vccio0-supply:
		description: The supply connected to VCCIO0.
		vccio1-supply:
		description: The supply connected to VCCIO1. Also labeled as VCCIO2.

		rk3228:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rk3228-io-voltage-domain

		then:
		properties:
		vccio1-supply:
		description: The supply connected to VCCIO1.
		vccio2-supply:
		description: The supply connected to VCCIO2.
		vccio3-supply:
		description: The supply connected to VCCIO3.
		vccio4-supply:
		description: The supply connected to VCCIO4.

		rk3288:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rk3288-io-voltage-domain

		then:
		properties:
		audio-supply:
		description: The supply connected to APIO4_VDD.
		bb-supply:
		description: The supply connected to APIO5_VDD.
		dvp-supply:
		description: The supply connected to DVPIO_VDD.
		flash0-supply:
		description: The supply connected to FLASH0_VDD. Typically for eMMC.
		flash1-supply:
		description: The supply connected to FLASH1_VDD. Also known as SDIO1.
		gpio30-supply:
		description: The supply connected to APIO1_VDD.
		gpio1830-supply:
		description: The supply connected to APIO2_VDD.
		lcdc-supply:
		description: The supply connected to LCDC_VDD.
		sdcard-supply:
		description: The supply connected to SDMMC0_VDD.
		wifi-supply:
		description: The supply connected to APIO3_VDD. Also known as SDIO0.

		rk3328:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rk3328-io-voltage-domain

		then:
		properties:
		vccio1-supply:
		description: The supply connected to VCCIO1.
		vccio2-supply:
		description: The supply connected to VCCIO2.
		vccio3-supply:
		description: The supply connected to VCCIO3.
		vccio4-supply:
		description: The supply connected to VCCIO4.
		vccio5-supply:
		description: The supply connected to VCCIO5.
		vccio6-supply:
		description: The supply connected to VCCIO6.
		pmuio-supply:
		description: The supply connected to VCCIO_PMU.

		rk3368:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rk3368-io-voltage-domain

		then:
		properties:
		audio-supply:
		description: The supply connected to APIO3_VDD.
		dvp-supply:
		description: The supply connected to DVPIO_VDD.
		flash0-supply:
		description: The supply connected to FLASH0_VDD. Typically for eMMC.
		gpio30-supply:
		description: The supply connected to APIO1_VDD.
		gpio1830-supply:
		description: The supply connected to APIO4_VDD.
		sdcard-supply:
		description: The supply connected to SDMMC0_VDD.
		wifi-supply:
		description: The supply connected to APIO2_VDD. Also known as SDIO0.

		rk3368-pmu:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rk3368-pmu-io-voltage-domain

		then:
		properties:
		pmu-supply:
		description: The supply connected to PMUIO_VDD.
		vop-supply:
		description: The supply connected to LCDC_VDD.

		rk3399:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rk3399-io-voltage-domain

		then:
		properties:
		audio-supply:
		description: The supply connected to APIO5_VDD.
		bt656-supply:
		description: The supply connected to APIO2_VDD.
		gpio1830-supply:
		description: The supply connected to APIO4_VDD.
		sdmmc-supply:
		description: The supply connected to SDMMC0_VDD.

		rk3399-pmu:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rk3399-pmu-io-voltage-domain

		then:
		properties:
		pmu1830-supply:
		description: The supply connected to PMUIO2_VDD.

		rv1108:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rv1108-io-voltage-domain

		then:
		properties:
		vccio1-supply:
		description: The supply connected to APIO1_VDD.
		vccio2-supply:
		description: The supply connected to APIO2_VDD.
		vccio3-supply:
		description: The supply connected to APIO3_VDD.
		vccio5-supply:
		description: The supply connected to APIO5_VDD.
		vccio6-supply:
		description: The supply connected to APIO6_VDD.

		rv1108-pmu:
		if:
		properties:
		compatible:
		contains:
		const: rockchip,rv1108-pmu-io-voltage-domain

		then:
		properties:
		pmu-supply:
		description: The supply connected to PMUIO_VDD.

		examples:
		- \|
		io-domains {
		compatible = "rockchip,rk3288-io-voltage-domain";
		audio-supply = <&vcc18_codec>;
		bb-supply = <&vcc33_io>;
		dvp-supply = <&vcc_18>;
		flash0-supply = <&vcc18_flashio>;
		gpio1830-supply = <&vcc33_io>;
		gpio30-supply = <&vcc33_pmuio>;
		lcdc-supply = <&vcc33_lcd>;
		sdcard-supply = <&vccio_sd>;
		wifi-supply = <&vcc18_wl>;
		};