| Message ID | 20221005-mt6357-support-v6-5-4f589756befa@baylibre.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add MediaTek MT6357 PMIC support | expand |
On 25/11/2022 16:10, Alexandre Mergnat wrote: > - Convert soc/mediatek/pwrap.txt to soc/mediatek/mediatek,pwrap.yaml > - Add syscon compatible const for mt8186 and mt8195 to match the DTS needs. > > Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com> > --- > .../devicetree/bindings/leds/leds-mt6323.txt | 2 +- > Documentation/devicetree/bindings/mfd/mt6397.txt | 2 +- > .../bindings/soc/mediatek/mediatek,pwrap.yaml | 147 +++++++++++++++++++++ > .../devicetree/bindings/soc/mediatek/pwrap.txt | 75 ----------- > 4 files changed, 149 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..3969871eaced > --- /dev/null > +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml > @@ -0,0 +1,147 @@ > +# 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@mediatek.com> > + - Alexandre Mergnat <amergnat@baylibre.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 > + - mediatek,mt8186-pwrap > + - mediatek,mt8188-pwrap > + - mediatek,mt8195-pwrap > + - mediatek,mt8365-pwrap > + - mediatek,mt8516-pwrap > + - items: > + - enum: > + - mediatek,mt8186-pwrap > + - mediatek,mt8195-pwrap > + - const: syscon > + > + 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 What's here? Other schema? If not then maybe compatible? What about description? > + > +required: > + - compatible > + - reg > + - reg-names > + - interrupts > + - clocks > + - clock-names > + > +dependentRequired: > + resets: [reset-names] Drop. > + > +allOf: > + - if: > + properties: > + compatible: > + contains: > + const: mediatek,mt8365-pwrap > + then: > + properties: > + clocks: > + minItems: 4 > + > + clock-names: > + minItems: 4 else: ??? > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/irq.h> > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + #include <dt-bindings/reset/mt8135-resets.h> > + > + soc { > + #address-cells = <2>; > + #size-cells = <2>; > + pwrap@1000d000 { > + compatible = "mediatek,mt8135-pwrap"; > + reg = <0 0x1000f000 0 0x1000>, This does not match your unit address. No warnings when compile testing? > + <0 0x11017000 0 0x1000>; > + reg-names = "pwrap", "pwrap-bridge"; > + interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>; > + clocks = <&clk26m>, <&clk26m>; > + clock-names = "spi", "wrap"; > + resets = <&infracfg MT8135_INFRA_PMIC_WRAP_RST>, > + <&pericfg MT8135_PERI_PWRAP_BRIDGE_SW_RST>; > + reset-names = "pwrap", "pwrap-bridge"; Missing pmic. Make your example complete. Best regards, Krzysztof
On 27/11/2022 14:04, Krzysztof Kozlowski wrote: > On 25/11/2022 16:10, Alexandre Mergnat wrote: >> - Convert soc/mediatek/pwrap.txt to soc/mediatek/mediatek,pwrap.yaml >> - Add syscon compatible const for mt8186 and mt8195 to match the DTS needs. >> >> + 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 > > What's here? Other schema? If not then maybe compatible? What about > description? I guess this was comment from Rob, so it's fine. > >> + >> +required: >> + - compatible >> + - reg >> + - reg-names >> + - interrupts >> + - clocks >> + - clock-names >> + >> +dependentRequired: >> + resets: [reset-names] > > Drop. > >> + >> +allOf: >> + - if: >> + properties: >> + compatible: >> + contains: >> + const: mediatek,mt8365-pwrap >> + then: >> + properties: >> + clocks: >> + minItems: 4 >> + >> + clock-names: >> + minItems: 4 > > else: > ??? Actually this looks less complete than your previous patch. else: clocks: maxItems: 2 same for clock-names > >> + >> +additionalProperties: false >> + >> +examples: >> + - | >> + #include <dt-bindings/interrupt-controller/irq.h> >> + #include <dt-bindings/interrupt-controller/arm-gic.h> >> + #include <dt-bindings/reset/mt8135-resets.h> >> + >> + soc { >> + #address-cells = <2>; >> + #size-cells = <2>; >> + pwrap@1000d000 { >> + compatible = "mediatek,mt8135-pwrap"; >> + reg = <0 0x1000f000 0 0x1000>, > > This does not match your unit address. No warnings when compile testing? > >> + <0 0x11017000 0 0x1000>; >> + reg-names = "pwrap", "pwrap-bridge"; >> + interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>; >> + clocks = <&clk26m>, <&clk26m>; >> + clock-names = "spi", "wrap"; >> + resets = <&infracfg MT8135_INFRA_PMIC_WRAP_RST>, >> + <&pericfg MT8135_PERI_PWRAP_BRIDGE_SW_RST>; >> + reset-names = "pwrap", "pwrap-bridge"; > > Missing pmic. Make your example complete. Probably pmic should be skipped, I understand it is described in MFD binding. Best regards, Krzysztof
Le dim. 27 nov. 2022 à 14:11, Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> a écrit : > > >> + pmic: > >> + type: object > > > > What's here? Other schema? If not then maybe compatible? What about > > description? > > I guess this was comment from Rob, so it's fine. Yes it is. > >> +allOf: > >> + - if: > >> + properties: > >> + compatible: > >> + contains: > >> + const: mediatek,mt8365-pwrap > >> + then: > >> + properties: > >> + clocks: > >> + minItems: 4 > >> + > >> + clock-names: > >> + minItems: 4 > > > > else: > > ??? > > Actually this looks less complete than your previous patch. > > else: > clocks: > maxItems: 2 > same for clock-names > I think I’ve followed the feedback done here [1] I’ve declared `minItems: 2` globally and override it to 4 if mediatek,mt8365-pwrap is used. Isn’t it the right way to implement it ? > >> + compatible = "mediatek,mt8135-pwrap"; > >> + reg = <0 0x1000f000 0 0x1000>, > > > > This does not match your unit address. No warnings when compile testing? > > There are no warnings when compile testing. I will fix the unit address anyway, sorry. > >> + <0 0x11017000 0 0x1000>; > >> + reg-names = "pwrap", "pwrap-bridge"; > >> + interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>; > >> + clocks = <&clk26m>, <&clk26m>; > >> + clock-names = "spi", "wrap"; > >> + resets = <&infracfg MT8135_INFRA_PMIC_WRAP_RST>, > >> + <&pericfg MT8135_PERI_PWRAP_BRIDGE_SW_RST>; > >> + reset-names = "pwrap", "pwrap-bridge"; > > > > Missing pmic. Make your example complete. > > Probably pmic should be skipped, I understand it is described in MFD > binding. > Put the pmic in the example have 2 constraints: - The original pmic "mediatek,mt6397" isn’t supported by a yaml schema, so I’ve a dt_binding_check fail: `failed to match any schema with compatible: ['mediatek,mt6397']` - If I put another pmic that supports a yaml schema, I need to put all required properties for the pmic, which I thought was unnecessary since it’s already done in its own schema and can change for another pmic, so less consistent. Then yes, IMHO, PMIC should be skipped in the example. [1] https://lore.kernel.org/all/fe898d24-54fa-56bb-8067-b422a3a52ff5@collabora.com/ Alex
On 28/11/2022 15:03, Alexandre Mergnat wrote: > >>>> +allOf: >>>> + - if: >>>> + properties: >>>> + compatible: >>>> + contains: >>>> + const: mediatek,mt8365-pwrap >>>> + then: >>>> + properties: >>>> + clocks: >>>> + minItems: 4 >>>> + >>>> + clock-names: >>>> + minItems: 4 >>> >>> else: >>> ??? >> >> Actually this looks less complete than your previous patch. >> >> else: >> clocks: >> maxItems: 2 >> same for clock-names >> > > I think I’ve followed the feedback done here [1] > I’ve declared `minItems: 2` globally and override it to 4 if > mediatek,mt8365-pwrap is used. Isn’t it the right way to implement it > ? Yes, just the other part of comment is missing: "If you really want to force a validation error when using mediatek,mt8365-pwrap and not providing `sys` and `tmr` clocks, you can just override minItems." but that's fine if this was your intention. > >>>> + compatible = "mediatek,mt8135-pwrap"; >>>> + reg = <0 0x1000f000 0 0x1000>, >>> >>> This does not match your unit address. No warnings when compile testing? >>> > > There are no warnings when compile testing. I will fix the unit > address anyway, sorry. > >>>> + <0 0x11017000 0 0x1000>; >>>> + reg-names = "pwrap", "pwrap-bridge"; >>>> + interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>; >>>> + clocks = <&clk26m>, <&clk26m>; >>>> + clock-names = "spi", "wrap"; >>>> + resets = <&infracfg MT8135_INFRA_PMIC_WRAP_RST>, >>>> + <&pericfg MT8135_PERI_PWRAP_BRIDGE_SW_RST>; >>>> + reset-names = "pwrap", "pwrap-bridge"; >>> >>> Missing pmic. Make your example complete. >> >> Probably pmic should be skipped, I understand it is described in MFD >> binding. >> > > Put the pmic in the example have 2 constraints: > - The original pmic "mediatek,mt6397" isn’t supported by a yaml > schema, so I’ve a dt_binding_check fail: `failed to match any schema > with compatible: ['mediatek,mt6397']` > - If I put another pmic that supports a yaml schema, I need to put all > required properties for the pmic, which I thought was unnecessary > since it’s already done in its own schema and can change for another > pmic, so less consistent. > > Then yes, IMHO, PMIC should be skipped in the example. Yes, you're right. Best regards, Krzysztof
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..3969871eaced --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml @@ -0,0 +1,147 @@ +# 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@mediatek.com> + - Alexandre Mergnat <amergnat@baylibre.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 + - mediatek,mt8186-pwrap + - mediatek,mt8188-pwrap + - mediatek,mt8195-pwrap + - mediatek,mt8365-pwrap + - mediatek,mt8516-pwrap + - items: + - enum: + - mediatek,mt8186-pwrap + - mediatek,mt8195-pwrap + - const: syscon + + 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 + +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/reset/mt8135-resets.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + pwrap@1000d000 { + 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>; + clocks = <&clk26m>, <&clk26m>; + clock-names = "spi", "wrap"; + resets = <&infracfg MT8135_INFRA_PMIC_WRAP_RST>, + <&pericfg MT8135_PERI_PWRAP_BRIDGE_SW_RST>; + reset-names = "pwrap", "pwrap-bridge"; + }; + }; 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@1000f000 { - 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"; - }; - };
- Convert soc/mediatek/pwrap.txt to soc/mediatek/mediatek,pwrap.yaml - Add syscon compatible const for mt8186 and mt8195 to match the DTS needs. Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com> --- .../devicetree/bindings/leds/leds-mt6323.txt | 2 +- Documentation/devicetree/bindings/mfd/mt6397.txt | 2 +- .../bindings/soc/mediatek/mediatek,pwrap.yaml | 147 +++++++++++++++++++++ .../devicetree/bindings/soc/mediatek/pwrap.txt | 75 ----------- 4 files changed, 149 insertions(+), 77 deletions(-)