From: Zhiyong Tao <zhiyong.tao@xxxxxxxxxxxx> The MediaTek MT6366 PMIC is similar to the MT6358 PMIC. It is designed to be paired with the MediaTek MT8186 SoC. It has 9 buck regulators and 29 LDO regulators, not counting ones that feed internally and basically have no controls. The regulators are named after their intended usage for the SoC and system design, thus not named generically as ldoX or dcdcX, but as vcn33 or vgpu. Add a binding document describing all the regulators and their supplies. Signed-off-by: Zhiyong Tao <zhiyong.tao@xxxxxxxxxxxx> [wens@xxxxxxxxxxxx: major rework and added commit message] Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx> --- Changes since v1: - Replaced underscores in supply names to hyphens - Merged with MT6358 regulator binding - Added MT6358 fallback compatible to MT6366 regulator Changes since Zhiyong's last version (v4) [1]: - simplified regulator names - added descriptions to regulators - removed bogus regulators (*_sshub) - merged vcn33-wifi and vcn33-bt as vcn33 - added missing regulators (vm18, vmddr, vsram-core) - cut down examples to a handful of cases and made them complete - expanded commit message a lot [1] https://lore.kernel.org/linux-arm-kernel/20220823123745.14061-1-zhiyong.tao@xxxxxxxxxxxx/ .../regulator/mediatek,mt6358-regulator.yaml | 227 +++++++++++++----- 1 file changed, 168 insertions(+), 59 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6358-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6358-regulator.yaml index 82328fe17680..b350181f33ff 100644 --- a/Documentation/devicetree/bindings/regulator/mediatek,mt6358-regulator.yaml +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6358-regulator.yaml @@ -16,14 +16,18 @@ description: | properties: compatible: - const: mediatek,mt6358-regulator + oneOf: + - const: mediatek,mt6358-regulator + - items: + - const: mediatek,mt6366-regulator + - const: mediatek,mt6358-regulator vsys-ldo1-supply: description: Supply for LDOs vfe28, vxo22, vcn28, vaux18, vaud28, vsim1, vusb, vbif28 vsys-ldo2-supply: - description: Supply for LDOs vldo28, vio28, vmc, vmch, vsim2 + description: Supply for LDOs vldo28 (MT6358 only), vio28, vmc, vmch, vsim2 vsys-ldo3-supply: - description: Supply for LDOs vcn33, vcama1, vcama2, vemc, vibr + description: Supply for LDOs vcn33, vcama[12] (MT6358 only), vemc, vibr vsys-vcore-supply: description: Supply for buck regulator vcore vsys-vdram1-supply: @@ -43,75 +47,138 @@ properties: vsys-vs2-supply: description: Supply for buck regulator vs2 vs1-ldo1-supply: - description: Supply for LDOs vrf18, vefuse, vcn18, vcamio, vio18 + description: Supply for LDOs vrf18, vefuse, vcn18, vcamio (MT6358 only), vio18 vs2-ldo1-supply: - description: Supply for LDOs vdram2 + description: Supply for LDOs vdram2, vmddr (MT6366 only) vs2-ldo2-supply: description: Supply for LDOs vrf12, va12 vs2-ldo3-supply: - description: Supply for LDOs vsram-gpu, vsram-others, vsram-proc11, vsram-proc12 - vs2-ldo4-supply: - description: Supply for LDO vcamd - -patternProperties: - "^buck_v(core|dram1|gpu|modem|pa|proc1[12]|s[12])$": - description: Buck regulators - type: object - $ref: regulator.yaml# - unevaluatedProperties: false - - "^ldo_v(a|rf)12": - description: LDOs with fixed 1.2V output and 0~100/10mV tuning - type: object - $ref: regulator.yaml# - unevaluatedProperties: false - - "^ldo_v((aux|cn|io|rf)18|camio)": - description: LDOs with fixed 1.8V output and 0~100/10mV tuning - type: object - $ref: regulator.yaml# - unevaluatedProperties: false - - "^ldo_vxo22": - description: LDOs with fixed 2.2V output and 0~100/10mV tuning - type: object - $ref: regulator.yaml# - unevaluatedProperties: false - - "^ldo_v(aud|bif|cn|fe|io)28": - description: LDOs with fixed 2.8V output and 0~100/10mV tuning - type: object - $ref: regulator.yaml# - unevaluatedProperties: false - - "^ldo_vusb": - description: LDOs with fixed 3.0V output and 0~100/10mV tuning - type: object - $ref: regulator.yaml# - unevaluatedProperties: false - - "^ldo_vsram_(gpu|others|proc1[12])$": - description: LDOs with variable output - type: object - $ref: regulator.yaml# - unevaluatedProperties: false - - "^ldo_v(cama[12]|camd|cn33|dram2|efuse|emc|ibr|ldo28|mc|mch|sim[12])$": - description: LDOs with variable output and 0~100/10mV tuning - type: object - $ref: regulator.yaml# - unevaluatedProperties: false + description: Supply for LDOs vsram-core (MT6366 only), vsram-gpu, vsram-others, vsram-proc11, vsram-proc12 required: - compatible -additionalProperties: false +unevaluatedProperties: false + +allOf: + - if: + properties: + compatible: + const: mediatek,mt6358-regulator + then: + properties: + vs2-ldo4-supply: + description: Supply for LDO vcamd + + patternProperties: + "^buck_v(core|dram1|gpu|modem|pa|proc1[12]|s[12])$": + description: Buck regulators + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^ldo_v(a|rf)12": + description: LDOs with fixed 1.2V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^ldo_v((aux|cn|io|rf)18|camio)": + description: LDOs with fixed 1.8V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^ldo_vxo22": + description: LDOs with fixed 2.2V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^ldo_v(aud|bif|cn|fe|io)28": + description: LDOs with fixed 2.8V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^ldo_vusb": + description: LDOs with fixed 3.0V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^ldo_vsram_(gpu|others|proc1[12])$": + description: LDOs with variable output + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^ldo_v(cama[12]|camd|cn33|dram2|efuse|emc|ibr|ldo28|mc|mch|sim[12])$": + description: LDOs with variable output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + - if: + properties: + compatible: + contains: + const: mediatek,mt6366-regulator + then: + patternProperties: + "^v(core|dram1|gpu|modem|pa|proc1[12]|s[12])$": + description: Buck regulators + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^v(a|rf)12": + description: LDOs with fixed 1.2V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^v(aux|io|rf)18": + description: LDOs with fixed 1.8V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^vxo22": + description: LDOs with fixed 2.2V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^v(aud|bif|cn|fe|io)28": + description: LDOs with fixed 2.8V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^vusb": + description: LDOs with fixed 3.0V output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^vsram-(core|gpu|others|proc1[12])$": + description: LDOs with variable output + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^v(cn18|cn33|dram2|efuse|emc|ibr|m18|mc|mch|mddr|sim[12])$": + description: LDOs with variable output and 0~100/10mV tuning + type: object + $ref: regulator.yaml# + unevaluatedProperties: false examples: - | #include <dt-bindings/regulator/mediatek,mt6397-regulator.h> - regulator { + mt6358-regulator { compatible = "mediatek,mt6358-regulator"; buck_vgpu { @@ -137,4 +204,46 @@ examples: }; }; + mt6366-regulator { + compatible = "mediatek,mt6366-regulator", "mediatek,mt6358-regulator"; + + vdram1 { + regulator-name = "pp1125_emi_vdd2"; + regulator-min-microvolt = <1125000>; + regulator-max-microvolt = <1125000>; + regulator-ramp-delay = <12500>; + regulator-enable-ramp-delay = <0>; + regulator-allowed-modes = <MT6397_BUCK_MODE_AUTO + MT6397_BUCK_MODE_FORCE_PWM>; + regulator-always-on; + }; + + vproc11 { + regulator-name = "ppvar_dvdd_proc_bc_mt6366"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <1200000>; + regulator-ramp-delay = <6250>; + regulator-enable-ramp-delay = <200>; + regulator-allowed-modes = <MT6397_BUCK_MODE_AUTO + MT6397_BUCK_MODE_FORCE_PWM>; + regulator-always-on; + }; + + vmddr { + regulator-name = "pm0750_emi_vmddr"; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <750000>; + regulator-enable-ramp-delay = <325>; + regulator-always-on; + }; + + vsram-proc11 { + regulator-name = "pp0900_dvdd_sram_bc"; + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <1120000>; + regulator-ramp-delay = <6250>; + regulator-enable-ramp-delay = <240>; + regulator-always-on; + }; + }; ... -- 2.42.0.rc1.204.g551eb34607-goog
