Loading Documentation/devicetree/bindings/regulator/cpr2-gfx-regulator.txt 0 → 100644 +395 −0 Original line number Diff line number Diff line Qualcomm Technologies, Inc. CPR regulator for Graphics GFX CPR controller monitors the voltage of the graphics processor(GPU) power rail. The CPR open-loop voltages are stored in hardware fuses for GFX CPR controller. However, the CPR target quotients must be defined in device tree. This driver supports CPR version 2 controller. This document describes the bindings that apply for GFX CPR controller. - compatible Usage: required Value type: <string> Definition: should be "qcom,cpr2-gfx-regulator" - reg Usage: required Value type: <prop-encoded-array> Definition: Addresses and sizes for the memory of the CPR controller and the first fuse row. - reg-names Usage: required Value type: <stringlist> Definition: Address names. Must be "rbcpr" and "efuse_addr". Must be specified in the same order as the corresponding addresses are specified in the reg property. - regulator-name Usage: required Value type: <string> Definition: A string used to describe the regulator. - clocks Usage: required Value type: <prop-encoded-array> Definition: Array of clock tuples in which each tuple consists of a phandle to a clock device and a clock ID number. The following clocks must be specified: GFX RBCPR, GFX RBCPR AHB. - clock-names Usage: required Value type: <stringlist> Definition: Clock names. This list must match up 1-to-1 with the clocks specified in the 'clocks' property. "core_clk" and "iface_clk" must be specified. - interrupts Usage: required Value type: <prop-encoded-array> Definition: CPR interrupt specifier. - vdd-gfx-supply Usage: required Value type: <phandle> Definition: phandle of the underlying regulator device that is managed by this CPR controller. - qcom,cpr-corners Usage: required Value type: <u32> Definition: Number of voltage corners present. Many other properties are sized based upon this value. - regulator-min-microvolt Usage: required Value type: <u32> Definition: Minimum corner value which should be 1 to represent the lowest supported corner. - regulator-max-microvolt Usage: required Value type: <u32> Definition: Maximum corner value which should be equal to largest value listed in qcom,cpr-corners. - qcom,cpr-voltage-ceiling Usage: required Value type: <prop-encoded-array> Definition: Array of ceiling voltages in microvolts for voltage corners ordered from lowest voltage corner to highest voltage corner. This property must be of length defined by qcom,cpr-corners. - qcom,cpr-voltage-floor Usage: required Value type: <prop-encoded-array> Definition: Array of floor voltages in microvolts for voltage corners ordered from lowest voltage corner to highest voltage corner. This property must be of length defined by qcom,cpr-corners. - qcom,vdd-gfx-step-up-limit Usage: required Value type: <u32> Definition: Limit of vdd-gfx-supply steps for scaling up. - qcom,vdd-gfx-step-down-limit Usage: required Value type: <u32> Definition: Limit of vdd-gfx-supply steps for scaling down. - qcom,cpr-ref-clk Usage: required Value type: <u32> Definition: The reference clock rate in kHz. - qcom,cpr-timer-delay Usage: required Value type: <u32> Definition: The delay in microseconds for the timer interval. - qcom,cpr-timer-cons-up Usage: required Value type: <u32> Definition: The number of consecutive CPR step up events needed to to trigger a up interrupt. Supported values: 0 - 15. - qcom,cpr-timer-cons-down Usage: required Value type: <u32> Definition: The number of consecutive CPR step down events needed to to trigger a down interrupt. Supported values: 0 - 15. - qcom,cpr-irq-line Usage: required Value type: <u32> Definition: Internal interrupt route signal of RBCPR, one of 0, 1 or 2. - qcom,cpr-step-quotient Usage: required Value type: <u32> Definition: Defines the number of CPR quotient (i.e. Ring Oscillator(RO) count) per vdd-gfx-supply output voltage step. A single integer value to be used for all RO's. - qcom,cpr-gfx-volt-step Usage: required Value type: <u32> Definition: The voltage in microvolts of a single step of the VDD supply regulator being controlled by CPR. - qcom,cpr-up-threshold Usage: required Value type: <u32> Definition: The number CPR error steps required to generate an up event. Supported values: 0 - 31. - qcom,cpr-down-threshold Usage: required Value type: <u32> Definition: The number CPR error steps required to generate a down event. Supported values: 0 - 31. - qcom,cpr-idle-clocks Usage: required Value type: <u32> Definition: The number of CPR core clock cycles for the CPR controller to wait in transitional states. Supported values: 0 - 31. - qcom,cpr-gcnt-time Usage: required Value type: <u32> Definition: The time for gate count in microseconds. - qcom,cpr-fuse-init-voltage Usage: required Value type: <prop-encoded-array> Definition: Array of quadruples in which each quadruple specifies a fuse location to read in order to get an initial voltage for a voltage corner. The fuse values are encoded as voltage steps higher or lower than the voltages defined in qcom,cpr-init-voltage-ref. Each step corresponds to the voltage defined by the qcom,cpr-init-voltage-step property. The 3 elements in one quadruple are: [0] => fuse row number [1] => bit offset within the row [2] => number of bits in the fuse parameter The quadruples are ordered from the lowest voltage corner to the highest voltage corner. The number for quadruples must be equal to the value specified in qcom,cpr-corners property. - qcom,cpr-init-voltage-ref Usage: required Value type: <prop-encoded-array> Definition: Array of reference voltages in microvolts used when decoding the initial voltage fuse values. The elements in the array are ordered from lowest voltage corner to highest voltage corner. This property must be of length defined by qcom,cpr-corners. - qcom,cpr-init-voltage-step Usage: required if qcom,cpr-fuse-init-voltage is specified. Value type: <u32> Definition: The voltage step size in microvolts of the CPR initial voltage fuses described by the qcom,cpr-fuse-init-voltage property. - qcom,cpr-ro-count Usage: required Value type: <u32> Definition: Defines the number of Ring Oscillator(RO)s present. - qcom,cpr-target-quotients Usage: required Value type: <prop-encoded-array> Definition: A grouping of integer tuple lists. Each tuple defines the CPR target quotient for each ring oscillator (RO) for a given corner. Each tuple must be of the length defined by qcom,cpr-ro-count. If a given RO is unused for a corner, then its target quotient should be specified as 0. Each tuple list must contain the number of tuples defined by the qcom,cpr-corners property. The tuples in a given list are ordered from the lowest corner to the highest corner. The tuple list grouping must contain exactly 1 list if qcom,cpr-fuse-version-map is not specified or the number of tuple lists must be equal to the number of tuples in qcom,cpr-fuse-version-map. - vdd-mx-supply Usage: optional Value type: <phandle> Definition: Regulator to supply memory power as dependency of VDD_GFX. - qcom,vdd-mx-corner-map Usage: required if vdd-mx-supply is specified. Value type: <prop-encoded-array> Definition: Array of integers which define the mapping of the VDD_MX corner to the corresponding GFX voltage corner. The elements in the array are ordered from lowest voltage corner to highest voltage corner. The length of this property must be equal to the value defined by qcom,cpr-corners. - mem-acc-supply Usage: optional Value type: <phandle> Definition: Regulator to vote for the memory accelerator configuration. Not Present: memory accelerator configuration not supported. - qcom,cpr-fuse-revision Usage: optional Value type: <prop-encoded-array> Definition: Array of 3 integer elements which define the location of the bits for the CPR fusing revision fuse parameter. The 3 elements are: [0] => fuse row number [1] => bit offset within the row [2] => number of bits in the fuse parameter The fusing revision value is used to determine specific adjustments that maybe required on some chips. - qcom,process-id-fuse Usage: optional Value type: <prop-encoded-array> Definition: Array of 3 integer elements which define the location of the bits for the process node id fuse parameter. The 3 elements are: [0] => fuse row number [1] => bit offset within the row [2] => number of bits in the fuse parameter This value is used to determine the specific adjustments that may be required on some chips. - qcom,foundry-id-fuse Usage: optional Value type: <prop-encoded-array> Definition: Array of 3 integer elements which define the location of the bits for the foundry identification fuse parameter. The 3 elements are: [0] => fuse row number [1] => bit offset within the row [2] => number of bits in the fuse parameter This value is used to determine the specific adjustments that may be required on some chips. - qcom,cpr-fuse-version-map Usage: optional Value type: <prop-encoded-array> Definition: Array of integer tuples which each match to a given combination of CPR fuse parameter values. Each tuple consists of 3 elements. The elements in one tuple are: [0] => the foundry identification [1] => the CPR fuse revision [2] => the process node id Any element in a tuple may use the value 0xffffffff as a wild card which will match against any fuse parameter value. The first tuple that matches against the fuse values read from hardware will be used. This property is used by several properties to provide an index into their lists. - qcom,cpr-init-voltage-adjustment Usage: optional Value type: <prop-encoded-array> Definition: Array of integer tuples of initial voltage adjustments in microvolts to add to the fused initial voltage values of each fuse corner. The elements in a tuple are ordered from lowest voltage corner to highest voltage corner. Each tuple must be of the length defined by qcom,cpr-corners. If the qcom,cpr-fuse-version-map property is specified, then qcom,cpr-init-voltage-adjustment must contain the same number of tuples as qcom,cpr-fuse-version-map. These tuples are then mapped one-to-one in the order specified. E.g. if the second qcom,cpr-fuse-version-map tuple matches for a given device, then the initial voltage adjustments defined in the second qcom,cpr-init-voltage-adjustment tuple will be applied. If the qcom,cpr-fuse-version-map property is not specified, then qcom,cpr-init-voltage-adjustment must contain a single tuple which is then applied unconditionally. This property can be used to add or subtract static initial voltage margin from the regulator managed by the CPR controller. - qcom,cpr-init-voltage-as-ceiling Usage: optional Value type: <empty> Definition: Boolean which indicates that the ceiling voltage used for a given virtual corner may be reduced to the initial voltage value. - qcom,cpr-enable Usage: optional Value type: <empty> Definition: Boolean flag which indicates that the CPR controller should operate in closed-loop mode (i.e. CPR sensing loop enabled) as opposed to open-loop mode (i.e. CPR sensing loop disabled) by default. ======= Example ======= gfx_vreg_corner: regulator@98000 { compatible = "qcom,cpr2-gfx-regulator"; reg = <0x98000 0x1000>, <0xa4000 0x1000>; reg-names = "rbcpr", "efuse_addr"; clocks = <&clock_gcc clk_gcc_rbcpr_gfx_clk>, <&clock_gcc clk_gcc_rbcpr_gfx_ahb_clk>; clock-names = "core_clk", "iface_clk"; interrupts = <0 150 0>; regulator-name = "gfx_corner"; qcom,cpr-corners = <8>; regulator-min-microvolt = <1>; regulator-max-microvolt = <8>; qcom,cpr-voltage-ceiling = <810000 865000 900000 950000 1010000 1050000 1110000 1165000>; qcom,cpr-voltage-floor = <755000 755000 755000 795000 835000 855000 920000 945000>; vdd-gfx-supply = <&pm8004_s5>; vdd-mx-supply = <&pm8950_s6_level_ao>; qcom,vdd-mx-vmax = <RPM_SMD_REGULATOR_LEVEL_TURBO>; qcom,vdd-mx-corner-map = <RPM_SMD_REGULATOR_LEVEL_SVS>, <RPM_SMD_REGULATOR_LEVEL_SVS>, <RPM_SMD_REGULATOR_LEVEL_SVS>, <RPM_SMD_REGULATOR_LEVEL_SVS>, <RPM_SMD_REGULATOR_LEVEL_SVS_PLUS>, <RPM_SMD_REGULATOR_LEVEL_NOM>, <RPM_SMD_REGULATOR_LEVEL_NOM_PLUS>, <RPM_SMD_REGULATOR_LEVEL_TURBO>; mem-acc-supply = <&mem_acc_gfx_vreg_corner>; qcom,cpr-ref-clk = <19200>; qcom,cpr-timer-delay = <5000>; qcom,cpr-timer-cons-up = <0>; qcom,cpr-timer-cons-down = <2>; qcom,cpr-irq-line = <0>; qcom,cpr-step-quotient = <16>; qcom,cpr-up-threshold = <2>; qcom,cpr-down-threshold = <4>; qcom,cpr-idle-clocks = <15>; qcom,cpr-gcnt-time = <1>; qcom,vdd-gfx-step-up-limit = <1>; qcom,vdd-gfx-step-down-limit = <1>; qcom,cpr-gfx-volt-step = <5000>; qcom,cpr-init-voltage-ref = <865000 865000 950000 950000 950000 1050000 1050000 1165000>; qcom,cpr-fuse-init-voltage = <72 50 5>, <72 50 5>, <72 45 5>, <72 45 5>, <72 45 5>, <72 40 5>, <72 40 5>, <72 35 5>; qcom,cpr-init-voltage-step = <12500>; qcom,cpr-ro-count = <8>; qcom,cpr-init-voltage-as-ceiling; qcom,cpr-init-voltage-adjustment = <(-55000) 0 (-60000) 0 (60000) 0 (65000) 0>; qcom,cpr-target-quotients = <513 489 620 574 237 272 144 177>, <562 536 675 627 264 303 163 199>, <631 606 744 699 315 356 205 245>, <780 752 902 854 412 459 283 330>, <879 847 1001 949 490 535 351 400>, <1010 971 1138 1080 579 626 428 479>, <1086 1039 1210 1146 643 684 489 538>, <1238 1179 1367 1290 752 789 586 633>; }; drivers/regulator/Kconfig +9 −0 Original line number Diff line number Diff line Loading @@ -808,6 +808,15 @@ config REGULATOR_CPR to voltage value before writing to a voltage regulator API, such as that provided by spm-regulator driver. config REGULATOR_CPR2_GFX bool "RBCPR regulator driver for GFX" depends on OF help This driver supports the CPR (core power reduction) controller for the graphics (GFX) rail. The GFX CPR2 controller monitors the graphics voltage requirements. This driver reads initial voltage values out of hardware fuses and CPR target quotient values out of device tree. config REGULATOR_CPR3 bool "CPR3 regulator core support" help Loading drivers/regulator/Makefile +1 −1 Original line number Diff line number Diff line Loading @@ -106,5 +106,5 @@ obj-$(CONFIG_REGULATOR_CPR3_MMSS) += cpr3-mmss-regulator.o obj-$(CONFIG_REGULATOR_QPNP_LABIBB) += qpnp-labibb-regulator.o obj-$(CONFIG_REGULATOR_STUB) += stub-regulator.o obj-$(CONFIG_REGULATOR_KRYO) += kryo-regulator.o obj-$(CONFIG_REGULATOR_CPR2_GFX) += cpr2-gfx-regulator.o ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG drivers/regulator/cpr2-gfx-regulator.c 0 → 100644 +2451 −0 File added.Preview size limit exceeded, changes collapsed. Show changes Loading
Documentation/devicetree/bindings/regulator/cpr2-gfx-regulator.txt 0 → 100644 +395 −0 Original line number Diff line number Diff line Qualcomm Technologies, Inc. CPR regulator for Graphics GFX CPR controller monitors the voltage of the graphics processor(GPU) power rail. The CPR open-loop voltages are stored in hardware fuses for GFX CPR controller. However, the CPR target quotients must be defined in device tree. This driver supports CPR version 2 controller. This document describes the bindings that apply for GFX CPR controller. - compatible Usage: required Value type: <string> Definition: should be "qcom,cpr2-gfx-regulator" - reg Usage: required Value type: <prop-encoded-array> Definition: Addresses and sizes for the memory of the CPR controller and the first fuse row. - reg-names Usage: required Value type: <stringlist> Definition: Address names. Must be "rbcpr" and "efuse_addr". Must be specified in the same order as the corresponding addresses are specified in the reg property. - regulator-name Usage: required Value type: <string> Definition: A string used to describe the regulator. - clocks Usage: required Value type: <prop-encoded-array> Definition: Array of clock tuples in which each tuple consists of a phandle to a clock device and a clock ID number. The following clocks must be specified: GFX RBCPR, GFX RBCPR AHB. - clock-names Usage: required Value type: <stringlist> Definition: Clock names. This list must match up 1-to-1 with the clocks specified in the 'clocks' property. "core_clk" and "iface_clk" must be specified. - interrupts Usage: required Value type: <prop-encoded-array> Definition: CPR interrupt specifier. - vdd-gfx-supply Usage: required Value type: <phandle> Definition: phandle of the underlying regulator device that is managed by this CPR controller. - qcom,cpr-corners Usage: required Value type: <u32> Definition: Number of voltage corners present. Many other properties are sized based upon this value. - regulator-min-microvolt Usage: required Value type: <u32> Definition: Minimum corner value which should be 1 to represent the lowest supported corner. - regulator-max-microvolt Usage: required Value type: <u32> Definition: Maximum corner value which should be equal to largest value listed in qcom,cpr-corners. - qcom,cpr-voltage-ceiling Usage: required Value type: <prop-encoded-array> Definition: Array of ceiling voltages in microvolts for voltage corners ordered from lowest voltage corner to highest voltage corner. This property must be of length defined by qcom,cpr-corners. - qcom,cpr-voltage-floor Usage: required Value type: <prop-encoded-array> Definition: Array of floor voltages in microvolts for voltage corners ordered from lowest voltage corner to highest voltage corner. This property must be of length defined by qcom,cpr-corners. - qcom,vdd-gfx-step-up-limit Usage: required Value type: <u32> Definition: Limit of vdd-gfx-supply steps for scaling up. - qcom,vdd-gfx-step-down-limit Usage: required Value type: <u32> Definition: Limit of vdd-gfx-supply steps for scaling down. - qcom,cpr-ref-clk Usage: required Value type: <u32> Definition: The reference clock rate in kHz. - qcom,cpr-timer-delay Usage: required Value type: <u32> Definition: The delay in microseconds for the timer interval. - qcom,cpr-timer-cons-up Usage: required Value type: <u32> Definition: The number of consecutive CPR step up events needed to to trigger a up interrupt. Supported values: 0 - 15. - qcom,cpr-timer-cons-down Usage: required Value type: <u32> Definition: The number of consecutive CPR step down events needed to to trigger a down interrupt. Supported values: 0 - 15. - qcom,cpr-irq-line Usage: required Value type: <u32> Definition: Internal interrupt route signal of RBCPR, one of 0, 1 or 2. - qcom,cpr-step-quotient Usage: required Value type: <u32> Definition: Defines the number of CPR quotient (i.e. Ring Oscillator(RO) count) per vdd-gfx-supply output voltage step. A single integer value to be used for all RO's. - qcom,cpr-gfx-volt-step Usage: required Value type: <u32> Definition: The voltage in microvolts of a single step of the VDD supply regulator being controlled by CPR. - qcom,cpr-up-threshold Usage: required Value type: <u32> Definition: The number CPR error steps required to generate an up event. Supported values: 0 - 31. - qcom,cpr-down-threshold Usage: required Value type: <u32> Definition: The number CPR error steps required to generate a down event. Supported values: 0 - 31. - qcom,cpr-idle-clocks Usage: required Value type: <u32> Definition: The number of CPR core clock cycles for the CPR controller to wait in transitional states. Supported values: 0 - 31. - qcom,cpr-gcnt-time Usage: required Value type: <u32> Definition: The time for gate count in microseconds. - qcom,cpr-fuse-init-voltage Usage: required Value type: <prop-encoded-array> Definition: Array of quadruples in which each quadruple specifies a fuse location to read in order to get an initial voltage for a voltage corner. The fuse values are encoded as voltage steps higher or lower than the voltages defined in qcom,cpr-init-voltage-ref. Each step corresponds to the voltage defined by the qcom,cpr-init-voltage-step property. The 3 elements in one quadruple are: [0] => fuse row number [1] => bit offset within the row [2] => number of bits in the fuse parameter The quadruples are ordered from the lowest voltage corner to the highest voltage corner. The number for quadruples must be equal to the value specified in qcom,cpr-corners property. - qcom,cpr-init-voltage-ref Usage: required Value type: <prop-encoded-array> Definition: Array of reference voltages in microvolts used when decoding the initial voltage fuse values. The elements in the array are ordered from lowest voltage corner to highest voltage corner. This property must be of length defined by qcom,cpr-corners. - qcom,cpr-init-voltage-step Usage: required if qcom,cpr-fuse-init-voltage is specified. Value type: <u32> Definition: The voltage step size in microvolts of the CPR initial voltage fuses described by the qcom,cpr-fuse-init-voltage property. - qcom,cpr-ro-count Usage: required Value type: <u32> Definition: Defines the number of Ring Oscillator(RO)s present. - qcom,cpr-target-quotients Usage: required Value type: <prop-encoded-array> Definition: A grouping of integer tuple lists. Each tuple defines the CPR target quotient for each ring oscillator (RO) for a given corner. Each tuple must be of the length defined by qcom,cpr-ro-count. If a given RO is unused for a corner, then its target quotient should be specified as 0. Each tuple list must contain the number of tuples defined by the qcom,cpr-corners property. The tuples in a given list are ordered from the lowest corner to the highest corner. The tuple list grouping must contain exactly 1 list if qcom,cpr-fuse-version-map is not specified or the number of tuple lists must be equal to the number of tuples in qcom,cpr-fuse-version-map. - vdd-mx-supply Usage: optional Value type: <phandle> Definition: Regulator to supply memory power as dependency of VDD_GFX. - qcom,vdd-mx-corner-map Usage: required if vdd-mx-supply is specified. Value type: <prop-encoded-array> Definition: Array of integers which define the mapping of the VDD_MX corner to the corresponding GFX voltage corner. The elements in the array are ordered from lowest voltage corner to highest voltage corner. The length of this property must be equal to the value defined by qcom,cpr-corners. - mem-acc-supply Usage: optional Value type: <phandle> Definition: Regulator to vote for the memory accelerator configuration. Not Present: memory accelerator configuration not supported. - qcom,cpr-fuse-revision Usage: optional Value type: <prop-encoded-array> Definition: Array of 3 integer elements which define the location of the bits for the CPR fusing revision fuse parameter. The 3 elements are: [0] => fuse row number [1] => bit offset within the row [2] => number of bits in the fuse parameter The fusing revision value is used to determine specific adjustments that maybe required on some chips. - qcom,process-id-fuse Usage: optional Value type: <prop-encoded-array> Definition: Array of 3 integer elements which define the location of the bits for the process node id fuse parameter. The 3 elements are: [0] => fuse row number [1] => bit offset within the row [2] => number of bits in the fuse parameter This value is used to determine the specific adjustments that may be required on some chips. - qcom,foundry-id-fuse Usage: optional Value type: <prop-encoded-array> Definition: Array of 3 integer elements which define the location of the bits for the foundry identification fuse parameter. The 3 elements are: [0] => fuse row number [1] => bit offset within the row [2] => number of bits in the fuse parameter This value is used to determine the specific adjustments that may be required on some chips. - qcom,cpr-fuse-version-map Usage: optional Value type: <prop-encoded-array> Definition: Array of integer tuples which each match to a given combination of CPR fuse parameter values. Each tuple consists of 3 elements. The elements in one tuple are: [0] => the foundry identification [1] => the CPR fuse revision [2] => the process node id Any element in a tuple may use the value 0xffffffff as a wild card which will match against any fuse parameter value. The first tuple that matches against the fuse values read from hardware will be used. This property is used by several properties to provide an index into their lists. - qcom,cpr-init-voltage-adjustment Usage: optional Value type: <prop-encoded-array> Definition: Array of integer tuples of initial voltage adjustments in microvolts to add to the fused initial voltage values of each fuse corner. The elements in a tuple are ordered from lowest voltage corner to highest voltage corner. Each tuple must be of the length defined by qcom,cpr-corners. If the qcom,cpr-fuse-version-map property is specified, then qcom,cpr-init-voltage-adjustment must contain the same number of tuples as qcom,cpr-fuse-version-map. These tuples are then mapped one-to-one in the order specified. E.g. if the second qcom,cpr-fuse-version-map tuple matches for a given device, then the initial voltage adjustments defined in the second qcom,cpr-init-voltage-adjustment tuple will be applied. If the qcom,cpr-fuse-version-map property is not specified, then qcom,cpr-init-voltage-adjustment must contain a single tuple which is then applied unconditionally. This property can be used to add or subtract static initial voltage margin from the regulator managed by the CPR controller. - qcom,cpr-init-voltage-as-ceiling Usage: optional Value type: <empty> Definition: Boolean which indicates that the ceiling voltage used for a given virtual corner may be reduced to the initial voltage value. - qcom,cpr-enable Usage: optional Value type: <empty> Definition: Boolean flag which indicates that the CPR controller should operate in closed-loop mode (i.e. CPR sensing loop enabled) as opposed to open-loop mode (i.e. CPR sensing loop disabled) by default. ======= Example ======= gfx_vreg_corner: regulator@98000 { compatible = "qcom,cpr2-gfx-regulator"; reg = <0x98000 0x1000>, <0xa4000 0x1000>; reg-names = "rbcpr", "efuse_addr"; clocks = <&clock_gcc clk_gcc_rbcpr_gfx_clk>, <&clock_gcc clk_gcc_rbcpr_gfx_ahb_clk>; clock-names = "core_clk", "iface_clk"; interrupts = <0 150 0>; regulator-name = "gfx_corner"; qcom,cpr-corners = <8>; regulator-min-microvolt = <1>; regulator-max-microvolt = <8>; qcom,cpr-voltage-ceiling = <810000 865000 900000 950000 1010000 1050000 1110000 1165000>; qcom,cpr-voltage-floor = <755000 755000 755000 795000 835000 855000 920000 945000>; vdd-gfx-supply = <&pm8004_s5>; vdd-mx-supply = <&pm8950_s6_level_ao>; qcom,vdd-mx-vmax = <RPM_SMD_REGULATOR_LEVEL_TURBO>; qcom,vdd-mx-corner-map = <RPM_SMD_REGULATOR_LEVEL_SVS>, <RPM_SMD_REGULATOR_LEVEL_SVS>, <RPM_SMD_REGULATOR_LEVEL_SVS>, <RPM_SMD_REGULATOR_LEVEL_SVS>, <RPM_SMD_REGULATOR_LEVEL_SVS_PLUS>, <RPM_SMD_REGULATOR_LEVEL_NOM>, <RPM_SMD_REGULATOR_LEVEL_NOM_PLUS>, <RPM_SMD_REGULATOR_LEVEL_TURBO>; mem-acc-supply = <&mem_acc_gfx_vreg_corner>; qcom,cpr-ref-clk = <19200>; qcom,cpr-timer-delay = <5000>; qcom,cpr-timer-cons-up = <0>; qcom,cpr-timer-cons-down = <2>; qcom,cpr-irq-line = <0>; qcom,cpr-step-quotient = <16>; qcom,cpr-up-threshold = <2>; qcom,cpr-down-threshold = <4>; qcom,cpr-idle-clocks = <15>; qcom,cpr-gcnt-time = <1>; qcom,vdd-gfx-step-up-limit = <1>; qcom,vdd-gfx-step-down-limit = <1>; qcom,cpr-gfx-volt-step = <5000>; qcom,cpr-init-voltage-ref = <865000 865000 950000 950000 950000 1050000 1050000 1165000>; qcom,cpr-fuse-init-voltage = <72 50 5>, <72 50 5>, <72 45 5>, <72 45 5>, <72 45 5>, <72 40 5>, <72 40 5>, <72 35 5>; qcom,cpr-init-voltage-step = <12500>; qcom,cpr-ro-count = <8>; qcom,cpr-init-voltage-as-ceiling; qcom,cpr-init-voltage-adjustment = <(-55000) 0 (-60000) 0 (60000) 0 (65000) 0>; qcom,cpr-target-quotients = <513 489 620 574 237 272 144 177>, <562 536 675 627 264 303 163 199>, <631 606 744 699 315 356 205 245>, <780 752 902 854 412 459 283 330>, <879 847 1001 949 490 535 351 400>, <1010 971 1138 1080 579 626 428 479>, <1086 1039 1210 1146 643 684 489 538>, <1238 1179 1367 1290 752 789 586 633>; };
drivers/regulator/Kconfig +9 −0 Original line number Diff line number Diff line Loading @@ -808,6 +808,15 @@ config REGULATOR_CPR to voltage value before writing to a voltage regulator API, such as that provided by spm-regulator driver. config REGULATOR_CPR2_GFX bool "RBCPR regulator driver for GFX" depends on OF help This driver supports the CPR (core power reduction) controller for the graphics (GFX) rail. The GFX CPR2 controller monitors the graphics voltage requirements. This driver reads initial voltage values out of hardware fuses and CPR target quotient values out of device tree. config REGULATOR_CPR3 bool "CPR3 regulator core support" help Loading
drivers/regulator/Makefile +1 −1 Original line number Diff line number Diff line Loading @@ -106,5 +106,5 @@ obj-$(CONFIG_REGULATOR_CPR3_MMSS) += cpr3-mmss-regulator.o obj-$(CONFIG_REGULATOR_QPNP_LABIBB) += qpnp-labibb-regulator.o obj-$(CONFIG_REGULATOR_STUB) += stub-regulator.o obj-$(CONFIG_REGULATOR_KRYO) += kryo-regulator.o obj-$(CONFIG_REGULATOR_CPR2_GFX) += cpr2-gfx-regulator.o ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
drivers/regulator/cpr2-gfx-regulator.c 0 → 100644 +2451 −0 File added.Preview size limit exceeded, changes collapsed. Show changes
