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Date: Thu, 17 Nov 2022 17:06:36 +0100
From: Matthias Brugger <matthias.bgg@...il.com>
To: Alexandre Mergnat <amergnat@...libre.com>,
Flora Fu <flora.fu@...iatek.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Tianping Fang <tianping.fang@...iatek.com>,
Fabien Parent <fabien.parent@...aro.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Liam Girdwood <lgirdwood@...il.com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Mark Brown <broonie@...nel.org>,
Sean Wang <sean.wang@...iatek.com>,
Chen Zhong <chen.zhong@...iatek.com>,
Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>,
Alessandro Zummo <a.zummo@...ertech.it>,
Rob Herring <robh+dt@...nel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Rob Herring <robh@...nel.org>,
Mattijs Korpershoek <mkorpershoek@...libre.com>,
linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-leds@...r.kernel.org, Fabien Parent <fparent@...libre.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
linux-rtc@...r.kernel.org, linux-input@...r.kernel.org
Subject: Re: [PATCH v5 06/10] dt-bindings: soc: mediatek: convert pwrap
documentation
On 16/11/2022 13:33, Alexandre Mergnat wrote:
> - Convert soc/mediatek/pwrap.txt to soc/mediatek/mediatek,pwrap.yaml
> - MT8365 SoC has 2 additional clock items and a yaml schema for its PMIC
Should be an extra commit.
> - Remove pwrap.txt file
Implicit to the first line.
>
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>
> ---
> .../devicetree/bindings/leds/leds-mt6323.txt | 2 +-
> Documentation/devicetree/bindings/mfd/mt6397.txt | 2 +-
> .../bindings/soc/mediatek/mediatek,pwrap.yaml | 145 +++++++++++++++++++++
> .../devicetree/bindings/soc/mediatek/pwrap.txt | 75 -----------
> 4 files changed, 147 insertions(+), 77 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-mt6323.txt b/Documentation/devicetree/bindings/leds/leds-mt6323.txt
> index 45bf9f7d85f3..73353692efa1 100644
> --- a/Documentation/devicetree/bindings/leds/leds-mt6323.txt
> +++ b/Documentation/devicetree/bindings/leds/leds-mt6323.txt
> @@ -9,7 +9,7 @@ MT6323 PMIC hardware.
> For MT6323 MFD bindings see:
> Documentation/devicetree/bindings/mfd/mt6397.txt
> For MediaTek PMIC wrapper bindings see:
> -Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
> +Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml
>
> Required properties:
> - compatible : Must be "mediatek,mt6323-led"
> diff --git a/Documentation/devicetree/bindings/mfd/mt6397.txt b/Documentation/devicetree/bindings/mfd/mt6397.txt
> index 79aaf21af8e9..3bee4a42555d 100644
> --- a/Documentation/devicetree/bindings/mfd/mt6397.txt
> +++ b/Documentation/devicetree/bindings/mfd/mt6397.txt
> @@ -13,7 +13,7 @@ MT6397/MT6323 is a multifunction device with the following sub modules:
> It is interfaced to host controller using SPI interface by a proprietary hardware
> called PMIC wrapper or pwrap. MT6397/MT6323 MFD is a child device of pwrap.
> See the following for pwarp node definitions:
> -../soc/mediatek/pwrap.txt
> +../soc/mediatek/mediatek,pwrap.yaml
>
> This document describes the binding for MFD device and its sub module.
>
> diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml
> new file mode 100644
> index 000000000000..6d19f534e994
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml
> @@ -0,0 +1,145 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/mediatek/mediatek,pwrap.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek PMIC Wrapper
> +
> +maintainers:
> + - Flora Fu <flora.fu@...iatek.com>
> + - Alexandre Mergnat <amergnat@...libre.com>
> +
> +description: |
> + On MediaTek SoCs the PMIC is connected via SPI. The SPI master interface
> + is not directly visible to the CPU, but only through the PMIC wrapper
> + inside the SoC. The communication between the SoC and the PMIC can
> + optionally be encrypted. Also a non standard Dual IO SPI mode can be
> + used to increase speed.
> +
> + IP Pairing
> +
> + On MT8135 the pins of some SoC internal peripherals can be on the PMIC.
> + The signals of these pins are routed over the SPI bus using the pwrap
> + bridge. In the binding description below the properties needed for bridging
> + are marked with "IP Pairing". These are optional on SoCs which do not support
> + IP Pairing
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - enum:
> + - mediatek,mt2701-pwrap
> + - mediatek,mt6765-pwrap
> + - mediatek,mt6779-pwrap
> + - mediatek,mt6797-pwrap
> + - mediatek,mt6873-pwrap
> + - mediatek,mt7622-pwrap
> + - mediatek,mt8135-pwrap
> + - mediatek,mt8173-pwrap
> + - mediatek,mt8183-pwrap
Missing mediatek,mt8186-pwrap
> + - mediatek,mt8188-pwrap
mt8188 has mt8195 as fallback, that must be kept as otherwise the driver does
not bind.
> + - mediatek,mt8365-pwrap
> + - mediatek,mt8516-pwrap
> + - items:
> + - enum:
> + - mediatek,mt8186-pwrap
> + - mediatek,mt8195-pwrap
> + - const: syscon
Not in the original txt binding, maybe add that in a first patch and then convert.
Regards,
Matthias
> +
> + reg:
> + minItems: 1
> + items:
> + - description: PMIC wrapper registers
> + - description: IP pairing registers
> +
> + reg-names:
> + minItems: 1
> + items:
> + - const: pwrap
> + - const: pwrap-bridge
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + minItems: 2
> + items:
> + - description: SPI bus clock
> + - description: Main module clock
> + - description: System module clock
> + - description: Timer module clock
> +
> + clock-names:
> + minItems: 2
> + items:
> + - const: spi
> + - const: wrap
> + - const: sys
> + - const: tmr
> +
> + resets:
> + minItems: 1
> + items:
> + - description: PMIC wrapper reset
> + - description: IP pairing reset
> +
> + reset-names:
> + minItems: 1
> + items:
> + - const: pwrap
> + - const: pwrap-bridge
> +
> + pmic:
> + type: object
> + $ref: /schemas/regulator/mediatek,mt6357-regulator.yaml
> +
> +required:
> + - compatible
> + - reg
> + - reg-names
> + - interrupts
> + - clocks
> + - clock-names
> +
> +dependentRequired:
> + resets: [reset-names]
> +
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: mediatek,mt8365-pwrap
> + then:
> + properties:
> + clocks:
> + minItems: 4
> +
> + clock-names:
> + minItems: 4
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/clock/mediatek,mt8365-clk.h>
> +
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + pwrap: pwrap@...0d000 {
> + compatible = "mediatek,mt8365-pwrap";
> + reg = <0 0x1000d000 0 0x1000>;
> + reg-names = "pwrap";
> + interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&infracfg CLK_IFR_PWRAP_SPI>,
> + <&infracfg CLK_IFR_PMIC_AP>,
> + <&infracfg CLK_IFR_PWRAP_SYS>,
> + <&infracfg CLK_IFR_PWRAP_TMR>;
> + clock-names = "spi", "wrap", "sys", "tmr";
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt b/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
> deleted file mode 100644
> index 8424b93c432e..000000000000
> --- a/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
> +++ /dev/null
> @@ -1,75 +0,0 @@
> -MediaTek PMIC Wrapper Driver
> -
> -This document describes the binding for the MediaTek PMIC wrapper.
> -
> -On MediaTek SoCs the PMIC is connected via SPI. The SPI master interface
> -is not directly visible to the CPU, but only through the PMIC wrapper
> -inside the SoC. The communication between the SoC and the PMIC can
> -optionally be encrypted. Also a non standard Dual IO SPI mode can be
> -used to increase speed.
> -
> -IP Pairing
> -
> -on MT8135 the pins of some SoC internal peripherals can be on the PMIC.
> -The signals of these pins are routed over the SPI bus using the pwrap
> -bridge. In the binding description below the properties needed for bridging
> -are marked with "IP Pairing". These are optional on SoCs which do not support
> -IP Pairing
> -
> -Required properties in pwrap device node.
> -- compatible:
> - "mediatek,mt2701-pwrap" for MT2701/7623 SoCs
> - "mediatek,mt6765-pwrap" for MT6765 SoCs
> - "mediatek,mt6779-pwrap" for MT6779 SoCs
> - "mediatek,mt6797-pwrap" for MT6797 SoCs
> - "mediatek,mt6873-pwrap" for MT6873/8192 SoCs
> - "mediatek,mt7622-pwrap" for MT7622 SoCs
> - "mediatek,mt8135-pwrap" for MT8135 SoCs
> - "mediatek,mt8173-pwrap" for MT8173 SoCs
> - "mediatek,mt8183-pwrap" for MT8183 SoCs
> - "mediatek,mt8186-pwrap" for MT8186 SoCs
> - "mediatek,mt8188-pwrap", "mediatek,mt8195-pwrap" for MT8188 SoCs
> - "mediatek,mt8195-pwrap" for MT8195 SoCs
> - "mediatek,mt8365-pwrap" for MT8365 SoCs
> - "mediatek,mt8516-pwrap" for MT8516 SoCs
> -- interrupts: IRQ for pwrap in SOC
> -- reg-names: "pwrap" is required; "pwrap-bridge" is optional.
> - "pwrap": Main registers base
> - "pwrap-bridge": bridge base (IP Pairing)
> -- reg: Must contain an entry for each entry in reg-names.
> -- clock-names: Must include the following entries:
> - "spi": SPI bus clock
> - "wrap": Main module clock
> - "sys": System module clock (for MT8365 SoC)
> - "tmr": Timer module clock (for MT8365 SoC)
> -- clocks: Must contain an entry for each entry in clock-names.
> -
> -Optional properities:
> -- reset-names: Some SoCs include the following entries:
> - "pwrap"
> - "pwrap-bridge" (IP Pairing)
> -- resets: Must contain an entry for each entry in reset-names.
> -- pmic: Using either MediaTek PMIC MFD as the child device of pwrap
> - See the following for child node definitions:
> - Documentation/devicetree/bindings/mfd/mt6397.txt
> - or the regulator-only device as the child device of pwrap, such as MT6380.
> - See the following definitions for such kinds of devices.
> - Documentation/devicetree/bindings/regulator/mt6380-regulator.txt
> -
> -Example:
> - pwrap: pwrap@...0f000 {
> - compatible = "mediatek,mt8135-pwrap";
> - reg = <0 0x1000f000 0 0x1000>,
> - <0 0x11017000 0 0x1000>;
> - reg-names = "pwrap", "pwrap-bridge";
> - interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>;
> - resets = <&infracfg MT8135_INFRA_PMIC_WRAP_RST>,
> - <&pericfg MT8135_PERI_PWRAP_BRIDGE_SW_RST>;
> - reset-names = "pwrap", "pwrap-bridge";
> - clocks = <&clk26m>, <&clk26m>;
> - clock-names = "spi", "wrap";
> -
> - pmic {
> - compatible = "mediatek,mt6397";
> - };
> - };
>
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