1*4882a593SmuzhiyunKernel driver max20751 2*4882a593Smuzhiyun====================== 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunSupported chips: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun * maxim MAX20751 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun Prefix: 'max20751' 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun Addresses scanned: - 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20751.pdf 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun Application note: https://pdfserv.maximintegrated.com/en/an/AN5941.pdf 15*4882a593Smuzhiyun 16*4882a593SmuzhiyunAuthor: Guenter Roeck <linux@roeck-us.net> 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun 19*4882a593SmuzhiyunDescription 20*4882a593Smuzhiyun----------- 21*4882a593Smuzhiyun 22*4882a593SmuzhiyunThis driver supports MAX20751 Multiphase Master with PMBus Interface 23*4882a593Smuzhiyunand Internal Buck Converter. 24*4882a593Smuzhiyun 25*4882a593SmuzhiyunThe driver is a client driver to the core PMBus driver. 26*4882a593SmuzhiyunPlease see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun 29*4882a593SmuzhiyunUsage Notes 30*4882a593Smuzhiyun----------- 31*4882a593Smuzhiyun 32*4882a593SmuzhiyunThis driver does not auto-detect devices. You will have to instantiate the 33*4882a593Smuzhiyundevices explicitly. Please see Documentation/i2c/instantiating-devices.rst for 34*4882a593Smuzhiyundetails. 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun 37*4882a593SmuzhiyunPlatform data support 38*4882a593Smuzhiyun--------------------- 39*4882a593Smuzhiyun 40*4882a593SmuzhiyunThe driver supports standard PMBus driver platform data. 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun 43*4882a593SmuzhiyunSysfs entries 44*4882a593Smuzhiyun------------- 45*4882a593Smuzhiyun 46*4882a593SmuzhiyunThe following attributes are supported. 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun======================= ======================================================= 49*4882a593Smuzhiyunin1_label "vin1" 50*4882a593Smuzhiyunin1_input Measured voltage. 51*4882a593Smuzhiyunin1_min Minimum input voltage. 52*4882a593Smuzhiyunin1_max Maximum input voltage. 53*4882a593Smuzhiyunin1_lcrit Critical minimum input voltage. 54*4882a593Smuzhiyunin1_crit Critical maximum input voltage. 55*4882a593Smuzhiyunin1_min_alarm Input voltage low alarm. 56*4882a593Smuzhiyunin1_lcrit_alarm Input voltage critical low alarm. 57*4882a593Smuzhiyunin1_min_alarm Input voltage low alarm. 58*4882a593Smuzhiyunin1_max_alarm Input voltage high alarm. 59*4882a593Smuzhiyun 60*4882a593Smuzhiyunin2_label "vout1" 61*4882a593Smuzhiyunin2_input Measured voltage. 62*4882a593Smuzhiyunin2_min Minimum output voltage. 63*4882a593Smuzhiyunin2_max Maximum output voltage. 64*4882a593Smuzhiyunin2_lcrit Critical minimum output voltage. 65*4882a593Smuzhiyunin2_crit Critical maximum output voltage. 66*4882a593Smuzhiyunin2_min_alarm Output voltage low alarm. 67*4882a593Smuzhiyunin2_lcrit_alarm Output voltage critical low alarm. 68*4882a593Smuzhiyunin2_min_alarm Output voltage low alarm. 69*4882a593Smuzhiyunin2_max_alarm Output voltage high alarm. 70*4882a593Smuzhiyun 71*4882a593Smuzhiyuncurr1_input Measured output current. 72*4882a593Smuzhiyuncurr1_label "iout1" 73*4882a593Smuzhiyuncurr1_max Maximum output current. 74*4882a593Smuzhiyuncurr1_alarm Current high alarm. 75*4882a593Smuzhiyun 76*4882a593Smuzhiyuntemp1_input Measured temperature. 77*4882a593Smuzhiyuntemp1_max Maximum temperature. 78*4882a593Smuzhiyuntemp1_crit Critical high temperature. 79*4882a593Smuzhiyuntemp1_max_alarm Chip temperature high alarm. 80*4882a593Smuzhiyuntemp1_crit_alarm Chip temperature critical high alarm. 81*4882a593Smuzhiyun 82*4882a593Smuzhiyunpower1_input Output power. 83*4882a593Smuzhiyunpower1_label "pout1" 84*4882a593Smuzhiyun======================= ======================================================= 85