1*4882a593SmuzhiyunKernel driver npcm750-pwm-fan 2*4882a593Smuzhiyun============================= 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunSupported chips: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun NUVOTON NPCM750/730/715/705 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunAuthors: 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun <tomer.maimon@nuvoton.com> 11*4882a593Smuzhiyun 12*4882a593SmuzhiyunDescription: 13*4882a593Smuzhiyun------------ 14*4882a593SmuzhiyunThis driver implements support for NUVOTON NPCM7XX PWM and Fan Tacho 15*4882a593Smuzhiyuncontroller. The PWM controller supports up to 8 PWM outputs. The Fan tacho 16*4882a593Smuzhiyuncontroller supports up to 16 tachometer inputs. 17*4882a593Smuzhiyun 18*4882a593SmuzhiyunThe driver provides the following sensor accesses in sysfs: 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun=============== ======= ===================================================== 21*4882a593SmuzhiyunfanX_input ro provide current fan rotation value in RPM as reported 22*4882a593Smuzhiyun by the fan to the device. 23*4882a593Smuzhiyun 24*4882a593SmuzhiyunpwmX rw get or set PWM fan control value. This is an integer 25*4882a593Smuzhiyun value between 0(off) and 255(full speed). 26*4882a593Smuzhiyun=============== ======= ===================================================== 27