1*7ebd8b66SMauro Carvalho ChehabKernel driver max20751 2*7ebd8b66SMauro Carvalho Chehab====================== 3*7ebd8b66SMauro Carvalho Chehab 4*7ebd8b66SMauro Carvalho ChehabSupported chips: 5*7ebd8b66SMauro Carvalho Chehab 6*7ebd8b66SMauro Carvalho Chehab * maxim MAX20751 7*7ebd8b66SMauro Carvalho Chehab 8*7ebd8b66SMauro Carvalho Chehab Prefix: 'max20751' 9*7ebd8b66SMauro Carvalho Chehab 10*7ebd8b66SMauro Carvalho Chehab Addresses scanned: - 11*7ebd8b66SMauro Carvalho Chehab 12*7ebd8b66SMauro Carvalho Chehab Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX20751.pdf 13*7ebd8b66SMauro Carvalho Chehab 14*7ebd8b66SMauro Carvalho Chehab Application note: http://pdfserv.maximintegrated.com/en/an/AN5941.pdf 15*7ebd8b66SMauro Carvalho Chehab 16*7ebd8b66SMauro Carvalho ChehabAuthor: Guenter Roeck <linux@roeck-us.net> 17*7ebd8b66SMauro Carvalho Chehab 18*7ebd8b66SMauro Carvalho Chehab 19*7ebd8b66SMauro Carvalho ChehabDescription 20*7ebd8b66SMauro Carvalho Chehab----------- 21*7ebd8b66SMauro Carvalho Chehab 22*7ebd8b66SMauro Carvalho ChehabThis driver supports MAX20751 Multiphase Master with PMBus Interface 23*7ebd8b66SMauro Carvalho Chehaband Internal Buck Converter. 24*7ebd8b66SMauro Carvalho Chehab 25*7ebd8b66SMauro Carvalho ChehabThe driver is a client driver to the core PMBus driver. 26*7ebd8b66SMauro Carvalho ChehabPlease see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. 27*7ebd8b66SMauro Carvalho Chehab 28*7ebd8b66SMauro Carvalho Chehab 29*7ebd8b66SMauro Carvalho ChehabUsage Notes 30*7ebd8b66SMauro Carvalho Chehab----------- 31*7ebd8b66SMauro Carvalho Chehab 32*7ebd8b66SMauro Carvalho ChehabThis driver does not auto-detect devices. You will have to instantiate the 33*7ebd8b66SMauro Carvalho Chehabdevices explicitly. Please see Documentation/i2c/instantiating-devices for 34*7ebd8b66SMauro Carvalho Chehabdetails. 35*7ebd8b66SMauro Carvalho Chehab 36*7ebd8b66SMauro Carvalho Chehab 37*7ebd8b66SMauro Carvalho ChehabPlatform data support 38*7ebd8b66SMauro Carvalho Chehab--------------------- 39*7ebd8b66SMauro Carvalho Chehab 40*7ebd8b66SMauro Carvalho ChehabThe driver supports standard PMBus driver platform data. 41*7ebd8b66SMauro Carvalho Chehab 42*7ebd8b66SMauro Carvalho Chehab 43*7ebd8b66SMauro Carvalho ChehabSysfs entries 44*7ebd8b66SMauro Carvalho Chehab------------- 45*7ebd8b66SMauro Carvalho Chehab 46*7ebd8b66SMauro Carvalho ChehabThe following attributes are supported. 47*7ebd8b66SMauro Carvalho Chehab 48*7ebd8b66SMauro Carvalho Chehab======================= ======================================================= 49*7ebd8b66SMauro Carvalho Chehabin1_label "vin1" 50*7ebd8b66SMauro Carvalho Chehabin1_input Measured voltage. 51*7ebd8b66SMauro Carvalho Chehabin1_min Minimum input voltage. 52*7ebd8b66SMauro Carvalho Chehabin1_max Maximum input voltage. 53*7ebd8b66SMauro Carvalho Chehabin1_lcrit Critical minimum input voltage. 54*7ebd8b66SMauro Carvalho Chehabin1_crit Critical maximum input voltage. 55*7ebd8b66SMauro Carvalho Chehabin1_min_alarm Input voltage low alarm. 56*7ebd8b66SMauro Carvalho Chehabin1_lcrit_alarm Input voltage critical low alarm. 57*7ebd8b66SMauro Carvalho Chehabin1_min_alarm Input voltage low alarm. 58*7ebd8b66SMauro Carvalho Chehabin1_max_alarm Input voltage high alarm. 59*7ebd8b66SMauro Carvalho Chehab 60*7ebd8b66SMauro Carvalho Chehabin2_label "vout1" 61*7ebd8b66SMauro Carvalho Chehabin2_input Measured voltage. 62*7ebd8b66SMauro Carvalho Chehabin2_min Minimum output voltage. 63*7ebd8b66SMauro Carvalho Chehabin2_max Maximum output voltage. 64*7ebd8b66SMauro Carvalho Chehabin2_lcrit Critical minimum output voltage. 65*7ebd8b66SMauro Carvalho Chehabin2_crit Critical maximum output voltage. 66*7ebd8b66SMauro Carvalho Chehabin2_min_alarm Output voltage low alarm. 67*7ebd8b66SMauro Carvalho Chehabin2_lcrit_alarm Output voltage critical low alarm. 68*7ebd8b66SMauro Carvalho Chehabin2_min_alarm Output voltage low alarm. 69*7ebd8b66SMauro Carvalho Chehabin2_max_alarm Output voltage high alarm. 70*7ebd8b66SMauro Carvalho Chehab 71*7ebd8b66SMauro Carvalho Chehabcurr1_input Measured output current. 72*7ebd8b66SMauro Carvalho Chehabcurr1_label "iout1" 73*7ebd8b66SMauro Carvalho Chehabcurr1_max Maximum output current. 74*7ebd8b66SMauro Carvalho Chehabcurr1_alarm Current high alarm. 75*7ebd8b66SMauro Carvalho Chehab 76*7ebd8b66SMauro Carvalho Chehabtemp1_input Measured temperature. 77*7ebd8b66SMauro Carvalho Chehabtemp1_max Maximum temperature. 78*7ebd8b66SMauro Carvalho Chehabtemp1_crit Critical high temperature. 79*7ebd8b66SMauro Carvalho Chehabtemp1_max_alarm Chip temperature high alarm. 80*7ebd8b66SMauro Carvalho Chehabtemp1_crit_alarm Chip temperature critical high alarm. 81*7ebd8b66SMauro Carvalho Chehab 82*7ebd8b66SMauro Carvalho Chehabpower1_input Output power. 83*7ebd8b66SMauro Carvalho Chehabpower1_label "pout1" 84*7ebd8b66SMauro Carvalho Chehab======================= ======================================================= 85