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187 lines
5.7 KiB
187 lines
5.7 KiB
Kernel driver smm665 |
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==================== |
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Supported chips: |
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* Summit Microelectronics SMM465 |
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Prefix: 'smm465' |
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Addresses scanned: - |
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Datasheet: |
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http://www.summitmicro.com/prod_select/summary/SMM465/SMM465DS.pdf |
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* Summit Microelectronics SMM665, SMM665B |
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Prefix: 'smm665' |
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Addresses scanned: - |
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Datasheet: |
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http://www.summitmicro.com/prod_select/summary/SMM665/SMM665B_2089_20.pdf |
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* Summit Microelectronics SMM665C |
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Prefix: 'smm665c' |
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Addresses scanned: - |
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Datasheet: |
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http://www.summitmicro.com/prod_select/summary/SMM665C/SMM665C_2125.pdf |
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* Summit Microelectronics SMM764 |
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Prefix: 'smm764' |
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Addresses scanned: - |
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Datasheet: |
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http://www.summitmicro.com/prod_select/summary/SMM764/SMM764_2098.pdf |
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* Summit Microelectronics SMM766, SMM766B |
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Prefix: 'smm766' |
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Addresses scanned: - |
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Datasheets: |
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http://www.summitmicro.com/prod_select/summary/SMM766/SMM766_2086.pdf |
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http://www.summitmicro.com/prod_select/summary/SMM766B/SMM766B_2122.pdf |
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Author: Guenter Roeck <[email protected]> |
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Module Parameters |
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----------------- |
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* vref: int |
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Default: 1250 (mV) |
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Reference voltage on VREF_ADC pin in mV. It should not be necessary to set |
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this parameter unless a non-default reference voltage is used. |
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Description |
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----------- |
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[From datasheet] The SMM665 is an Active DC Output power supply Controller |
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that monitors, margins and cascade sequences power. The part monitors six |
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power supply channels as well as VDD, 12V input, two general-purpose analog |
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inputs and an internal temperature sensor using a 10-bit ADC. |
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Each monitored channel has its own high and low limits, plus a critical |
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limit. |
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Support for SMM465, SMM764, and SMM766 has been implemented but is untested. |
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Usage Notes |
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----------- |
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This driver does not probe for devices, since there is no register which |
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can be safely used to identify the chip. You will have to instantiate |
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the devices explicitly. When instantiating the device, you have to specify |
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its configuration register address. |
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Example: the following will load the driver for an SMM665 at address 0x57 |
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on I2C bus #1:: |
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$ modprobe smm665 |
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$ echo smm665 0x57 > /sys/bus/i2c/devices/i2c-1/new_device |
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Sysfs entries |
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------------- |
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This driver uses the values in the datasheet to convert ADC register values |
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into the values specified in the sysfs-interface document. All attributes are |
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read only. |
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Min, max, lcrit, and crit values are used by the chip to trigger external signals |
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and/or other activity. Triggered signals can include HEALTHY, RST, Power Off, |
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or Fault depending on the chip configuration. The driver reports values as lcrit |
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or crit if exceeding the limits triggers RST, Power Off, or Fault, and as min or |
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max otherwise. For details please see the SMM665 datasheet. |
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For SMM465 and SMM764, values for Channel E and F are reported but undefined. |
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======================= ======================================================= |
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in1_input 12V input voltage (mV) |
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in2_input 3.3V (VDD) input voltage (mV) |
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in3_input Channel A voltage (mV) |
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in4_input Channel B voltage (mV) |
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in5_input Channel C voltage (mV) |
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in6_input Channel D voltage (mV) |
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in7_input Channel E voltage (mV) |
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in8_input Channel F voltage (mV) |
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in9_input AIN1 voltage (mV) |
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in10_input AIN2 voltage (mV) |
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in1_min 12v input minimum voltage (mV) |
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in2_min 3.3V (VDD) input minimum voltage (mV) |
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in3_min Channel A minimum voltage (mV) |
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in4_min Channel B minimum voltage (mV) |
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in5_min Channel C minimum voltage (mV) |
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in6_min Channel D minimum voltage (mV) |
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in7_min Channel E minimum voltage (mV) |
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in8_min Channel F minimum voltage (mV) |
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in9_min AIN1 minimum voltage (mV) |
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in10_min AIN2 minimum voltage (mV) |
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in1_max 12v input maximum voltage (mV) |
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in2_max 3.3V (VDD) input maximum voltage (mV) |
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in3_max Channel A maximum voltage (mV) |
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in4_max Channel B maximum voltage (mV) |
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in5_max Channel C maximum voltage (mV) |
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in6_max Channel D maximum voltage (mV) |
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in7_max Channel E maximum voltage (mV) |
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in8_max Channel F maximum voltage (mV) |
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in9_max AIN1 maximum voltage (mV) |
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in10_max AIN2 maximum voltage (mV) |
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in1_lcrit 12v input critical minimum voltage (mV) |
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in2_lcrit 3.3V (VDD) input critical minimum voltage (mV) |
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in3_lcrit Channel A critical minimum voltage (mV) |
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in4_lcrit Channel B critical minimum voltage (mV) |
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in5_lcrit Channel C critical minimum voltage (mV) |
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in6_lcrit Channel D critical minimum voltage (mV) |
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in7_lcrit Channel E critical minimum voltage (mV) |
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in8_lcrit Channel F critical minimum voltage (mV) |
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in9_lcrit AIN1 critical minimum voltage (mV) |
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in10_lcrit AIN2 critical minimum voltage (mV) |
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in1_crit 12v input critical maximum voltage (mV) |
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in2_crit 3.3V (VDD) input critical maximum voltage (mV) |
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in3_crit Channel A critical maximum voltage (mV) |
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in4_crit Channel B critical maximum voltage (mV) |
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in5_crit Channel C critical maximum voltage (mV) |
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in6_crit Channel D critical maximum voltage (mV) |
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in7_crit Channel E critical maximum voltage (mV) |
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in8_crit Channel F critical maximum voltage (mV) |
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in9_crit AIN1 critical maximum voltage (mV) |
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in10_crit AIN2 critical maximum voltage (mV) |
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in1_crit_alarm 12v input critical alarm |
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in2_crit_alarm 3.3V (VDD) input critical alarm |
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in3_crit_alarm Channel A critical alarm |
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in4_crit_alarm Channel B critical alarm |
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in5_crit_alarm Channel C critical alarm |
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in6_crit_alarm Channel D critical alarm |
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in7_crit_alarm Channel E critical alarm |
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in8_crit_alarm Channel F critical alarm |
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in9_crit_alarm AIN1 critical alarm |
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in10_crit_alarm AIN2 critical alarm |
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temp1_input Chip temperature |
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temp1_min Mimimum chip temperature |
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temp1_max Maximum chip temperature |
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temp1_crit Critical chip temperature |
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temp1_crit_alarm Temperature critical alarm |
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======================= =======================================================
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