Loading Documentation/devicetree/bindings/regulator/qpnp-oledb-regulator.txt 0 → 100644 +243 −0 Original line number Diff line number Diff line QPNP OLEDB (AMOLED AVDD Bias) Regulator QPNP OLEDB module provides AVDD voltage bias to the AMOLED display panel. The supported voltage range is 5V to 8.1V. This document describes the bindings for QPNP OLEDB module. ======================= Required Node Structure ======================= - compatible Usage: required Value type: <string> Definition: should be "qcom,qpnp-oledb-regulator". - qcom,pmic-revid Usage: required Value type: <phandle> Definition: Used to identify the PMIC subtype. - reg Usage: required Value type: <prop-encoded-array> Definition: Base address of the OLEDB SPMI peripheral. - label Usage: required Value type: <string> Definition: A string used to describe the bias type(oledb). - regulator-name Usage: required Value type: <string> Definition: A string used to describe the regulator. - regulator-min-microvolt Usage: required Value type: <u32> Definition: Minimum voltage (in uV) supported by the bias (5000000uV). - regulator-max-microvolt Usage: required Value type: <u32> Definition: Maximum voltage (in uV) supported by the bias (8100000uV). - qcom,swire-control Usage: optional Value type: <bool> Definition: Enables the voltage programming through SWIRE signal. - qcom,ext-pin-control Usage: optional Value type: <bool> Definition: Configures the OLED module to be enabled by a external pin. - qcom,dynamic-ext-pinctl-config Usage: optional Value type: <bool> Definition: Used to dynamically enable/disable the OLEDB module using external pin to avoid the glitches on the voltage rail. This property is applicable only if qcom,ext-pin-ctl property is specified and it is specific to PM660A. - qcom,pbs-client Usage: optional Value type: <phandle> Definition: Used to send the PBS trigger to the specified PBS client. This property is applicable only if qcom,force-pd-control property is specified. - qcom,pbs-control Usage: optional Value type: <bool> Definition: PMIC PBS logic directly configures the output voltage update and pull down control. - qcom,oledb-init-voltage-mv Usage: optional Value type: <u32> Definition: Sets the AVDD bias voltage (in mV) when the module is already enabled. Applicable only if the qcom,swire-control property is not specified. Supported values are from 5.0V to 8.1V with a step of 100mV. - qcom,oledb-default-voltage-mv Usage: optional Value type: <u32> Definition: Sets the default AVDD bias voltage (in mV) before module enable. Supported values are from 5.0V to 8.1V with the step of 100mV. - qcom,bias-gen-warmup-delay-ns Usage: optional Value type: <u32> Definition: Bias generator warm-up time (ns). Supported values are 6700, 13300, 267000, 534000. - qcom,peak-curr-limit-ma Usage: optional Value type: <u32> Definition: Peak current limit (in mA). Supported values are 115, 265, 415, 570, 720, 870, 1020, 1170. - qcom,pull-down-enable Usage: optional Value type: <u32> Definition: Pull down configuration of OLEDB. 1 - Enable pull-down 0 - Disable pull-down - qcom,negative-curr-limit-enable Usage: optional Value type: <u32> Definition: negative current limit enable/disable. 1 = enable negative current limit 0 = disable negative current limit - qcom,negative-curr-limit-ma Usage: optional Value type: <u32> Definition: Negative current limit (in mA). Supported values are 170, 300, 420, 550. - qcom,enable-short-circuit Usage: optional Value type: <u32> Definition: Short circuit protection enable/disable. 1 = enable short circuit protection 0 = disable short circuit protection - qcom,short-circuit-dbnc-time usage: optional Value type: <u32> Definitioan: Short circuit debounce time (in Fsw). Supported values are 2, 4, 8, 16. Fast precharge properties: ------------------------- - qcom,fast-precharge-ppulse-enable usage: optional Value type: <u32> Definitioan: Fast precharge pfet pulsing enable/disable. 1 = enable fast precharge pfet pulsing 0 = disable fast precharge pfet pulsing - qcom,precharge-debounce-time-ms usage: optional Value type: <u32> Definitioan: Fast precharge debounce time (in ms). Supported values are 1, 2, 4, 8. - qcom,precharge-pulse-period-us usage: optional Value type: <u32> Definitioan: Fast precharge pulse period (in us). Supported values are 3, 6, 9, 12. - qcom,precharge-pulse-on-time-us usage: optional Value type: <u32> Definitioan: Fast precharge pulse on time (in ns). Supported values are 1200, 1800, 2400, 3000. Pulse Skip Modulation (PSM) properties: -------------------------------------- - qcom,psm-enable Usage: optional Value type: <u32> Definition: Pulse Skip Modulation mode. 1 - Enable PSM mode 0 - Disable PSM mode - qcom,psm-hys-mv Usage: optional Value type: <u32> Definition: PSM hysterysis voltage (in mV). Supported values are 13mV and 26mV. - qcom,psm-vref-mv Usage: optional Value type: <u32> Definition: Reference voltage(in mV) control for PSM comparator. Supported values are 440, 510, 580, 650, 715, 780, 850, and 920. Pulse Frequency Modulation (PFM) properties: ------------------------------------------- - qcom,pfm-enable Usage: optional Value type: <u32> Definition: Pulse Frequency Modulation mode. 1 - Enable PFM mode 0 - Disable PFM mode - qcom,pfm-hys-mv Usage: optional Value type: <u32> Definition: PFM hysterysis voltage (in mV). Supported values are 13mV and 26mV. - qcom,pfm-curr-limit-ma Usage: optional Value type: <u32> Definition: PFM current limit (in mA). Supported values are 130, 200, 270, 340. - qcom,pfm-off-time-ns Usage: optional Value type: <u32> Definition: NFET off time at PFM (in ns). Supported values are 110, 240, 350, 480. ======= Example ======= pm660a_oledb: qpnp-oledb@e000 { compatible = "qcom,qpnp-oledb-regulator"; #address-cells = <1>; #size-cells = <1>; qcom,pmic-revid = <&pm660l_revid>; reg = <0xe000 0x100>; label = "oledb"; regulator-name = "regulator-oledb"; regulator-min-microvolt = <5000000>; regulator-max-microvolt = <8100000>; qcom,swire-control; qcom,ext-pin-control; qcom,oledb-default-voltage-mv = <5000>; qcom,bias-gen-warmup-delay-ns = <6700>; qcom,pull-down-enable = <1>; qcom,peak-curr-limit-ma = <570>; qcom, enable-psm = <1>; qcom,psm-hys-mv = <13>; }; Loading
Documentation/devicetree/bindings/regulator/qpnp-oledb-regulator.txt 0 → 100644 +243 −0 Original line number Diff line number Diff line QPNP OLEDB (AMOLED AVDD Bias) Regulator QPNP OLEDB module provides AVDD voltage bias to the AMOLED display panel. The supported voltage range is 5V to 8.1V. This document describes the bindings for QPNP OLEDB module. ======================= Required Node Structure ======================= - compatible Usage: required Value type: <string> Definition: should be "qcom,qpnp-oledb-regulator". - qcom,pmic-revid Usage: required Value type: <phandle> Definition: Used to identify the PMIC subtype. - reg Usage: required Value type: <prop-encoded-array> Definition: Base address of the OLEDB SPMI peripheral. - label Usage: required Value type: <string> Definition: A string used to describe the bias type(oledb). - regulator-name Usage: required Value type: <string> Definition: A string used to describe the regulator. - regulator-min-microvolt Usage: required Value type: <u32> Definition: Minimum voltage (in uV) supported by the bias (5000000uV). - regulator-max-microvolt Usage: required Value type: <u32> Definition: Maximum voltage (in uV) supported by the bias (8100000uV). - qcom,swire-control Usage: optional Value type: <bool> Definition: Enables the voltage programming through SWIRE signal. - qcom,ext-pin-control Usage: optional Value type: <bool> Definition: Configures the OLED module to be enabled by a external pin. - qcom,dynamic-ext-pinctl-config Usage: optional Value type: <bool> Definition: Used to dynamically enable/disable the OLEDB module using external pin to avoid the glitches on the voltage rail. This property is applicable only if qcom,ext-pin-ctl property is specified and it is specific to PM660A. - qcom,pbs-client Usage: optional Value type: <phandle> Definition: Used to send the PBS trigger to the specified PBS client. This property is applicable only if qcom,force-pd-control property is specified. - qcom,pbs-control Usage: optional Value type: <bool> Definition: PMIC PBS logic directly configures the output voltage update and pull down control. - qcom,oledb-init-voltage-mv Usage: optional Value type: <u32> Definition: Sets the AVDD bias voltage (in mV) when the module is already enabled. Applicable only if the qcom,swire-control property is not specified. Supported values are from 5.0V to 8.1V with a step of 100mV. - qcom,oledb-default-voltage-mv Usage: optional Value type: <u32> Definition: Sets the default AVDD bias voltage (in mV) before module enable. Supported values are from 5.0V to 8.1V with the step of 100mV. - qcom,bias-gen-warmup-delay-ns Usage: optional Value type: <u32> Definition: Bias generator warm-up time (ns). Supported values are 6700, 13300, 267000, 534000. - qcom,peak-curr-limit-ma Usage: optional Value type: <u32> Definition: Peak current limit (in mA). Supported values are 115, 265, 415, 570, 720, 870, 1020, 1170. - qcom,pull-down-enable Usage: optional Value type: <u32> Definition: Pull down configuration of OLEDB. 1 - Enable pull-down 0 - Disable pull-down - qcom,negative-curr-limit-enable Usage: optional Value type: <u32> Definition: negative current limit enable/disable. 1 = enable negative current limit 0 = disable negative current limit - qcom,negative-curr-limit-ma Usage: optional Value type: <u32> Definition: Negative current limit (in mA). Supported values are 170, 300, 420, 550. - qcom,enable-short-circuit Usage: optional Value type: <u32> Definition: Short circuit protection enable/disable. 1 = enable short circuit protection 0 = disable short circuit protection - qcom,short-circuit-dbnc-time usage: optional Value type: <u32> Definitioan: Short circuit debounce time (in Fsw). Supported values are 2, 4, 8, 16. Fast precharge properties: ------------------------- - qcom,fast-precharge-ppulse-enable usage: optional Value type: <u32> Definitioan: Fast precharge pfet pulsing enable/disable. 1 = enable fast precharge pfet pulsing 0 = disable fast precharge pfet pulsing - qcom,precharge-debounce-time-ms usage: optional Value type: <u32> Definitioan: Fast precharge debounce time (in ms). Supported values are 1, 2, 4, 8. - qcom,precharge-pulse-period-us usage: optional Value type: <u32> Definitioan: Fast precharge pulse period (in us). Supported values are 3, 6, 9, 12. - qcom,precharge-pulse-on-time-us usage: optional Value type: <u32> Definitioan: Fast precharge pulse on time (in ns). Supported values are 1200, 1800, 2400, 3000. Pulse Skip Modulation (PSM) properties: -------------------------------------- - qcom,psm-enable Usage: optional Value type: <u32> Definition: Pulse Skip Modulation mode. 1 - Enable PSM mode 0 - Disable PSM mode - qcom,psm-hys-mv Usage: optional Value type: <u32> Definition: PSM hysterysis voltage (in mV). Supported values are 13mV and 26mV. - qcom,psm-vref-mv Usage: optional Value type: <u32> Definition: Reference voltage(in mV) control for PSM comparator. Supported values are 440, 510, 580, 650, 715, 780, 850, and 920. Pulse Frequency Modulation (PFM) properties: ------------------------------------------- - qcom,pfm-enable Usage: optional Value type: <u32> Definition: Pulse Frequency Modulation mode. 1 - Enable PFM mode 0 - Disable PFM mode - qcom,pfm-hys-mv Usage: optional Value type: <u32> Definition: PFM hysterysis voltage (in mV). Supported values are 13mV and 26mV. - qcom,pfm-curr-limit-ma Usage: optional Value type: <u32> Definition: PFM current limit (in mA). Supported values are 130, 200, 270, 340. - qcom,pfm-off-time-ns Usage: optional Value type: <u32> Definition: NFET off time at PFM (in ns). Supported values are 110, 240, 350, 480. ======= Example ======= pm660a_oledb: qpnp-oledb@e000 { compatible = "qcom,qpnp-oledb-regulator"; #address-cells = <1>; #size-cells = <1>; qcom,pmic-revid = <&pm660l_revid>; reg = <0xe000 0x100>; label = "oledb"; regulator-name = "regulator-oledb"; regulator-min-microvolt = <5000000>; regulator-max-microvolt = <8100000>; qcom,swire-control; qcom,ext-pin-control; qcom,oledb-default-voltage-mv = <5000>; qcom,bias-gen-warmup-delay-ns = <6700>; qcom,pull-down-enable = <1>; qcom,peak-curr-limit-ma = <570>; qcom, enable-psm = <1>; qcom,psm-hys-mv = <13>; };
