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authorMaxim Sloyko <maxims@google.com>2019-04-12 13:37:56 -0700
committerGuenter Roeck <linux@roeck-us.net>2019-04-15 17:19:53 -0700
commit00669d196c616c0a9970a3a9ee66efab6868df0c (patch)
tree8dd0fadd55b1e4b6c714bc105da522eea8001e77 /Documentation/hwmon
parentc49b7b3981f5c39b9b50dc65e32d3c6a553825de (diff)
downloadlinux-00669d196c616c0a9970a3a9ee66efab6868df0c.tar.bz2
hwmon: (pmbus/ir38064) Add driver for Infineon IR38064 Voltage Regulator
Add the pmbus driver for the Infineon ir38064 voltage regulator. VOUT_MODE is not supported by the device. The driver fakes linear16 mode with exponent value -8. The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however this driver does not enable them. Signed-off-by: Maxim Sloyko <maxims@google.com> Signed-off-by: Patrick Venture <venture@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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+Kernel driver ir38064
+=====================
+
+Supported chips:
+ * Infineon IR38064
+ Prefix: 'ir38064'
+ Addresses scanned: -
+ Datasheet: Publicly available at the Infineon webiste
+ https://www.infineon.com/dgdl/Infineon-IR38064MTRPBF-DS-v03_07-EN.pdf?fileId=5546d462584d1d4a0158db0d9efb67ca
+
+Datasheet is not publicly available.
+
+
+Authors:
+ Maxim Sloyko <maxims@google.com>
+ Patrick Venture <venture@google.com>
+
+Description
+-----------
+
+IR38064 is a Single-input Voltage, Synchronous Buck Regulator, DC-DC Converter.
+
+Usage Notes
+-----------
+
+This driver does not probe for PMBus devices. You will have to instantiate
+devices explicitly.
+
+Sysfs attributes
+----------------
+
+curr1_label "iout1"
+curr1_input Measured output current
+curr1_crit Critical maximum current
+curr1_crit_alarm Current critical high alarm
+curr1_max Maximum current
+curr1_max_alarm Current high alarm
+
+in1_label "vin"
+in1_input Measured input voltage
+in1_crit Critical maximum input voltage
+in1_crit_alarm Input voltage critical high alarm
+in1_min Minimum input voltage
+in1_min_alarm Input voltage low alarm
+
+in2_label "vout1"
+in2_input Measured output voltage
+in2_lcrit Critical minimum output voltage
+in2_lcrit_alarm Output voltage critical low alarm
+in2_crit Critical maximum output voltage
+in2_crit_alarm Output voltage critical high alarm
+in2_max Maximum output voltage
+in2_max_alarm Output voltage high alarm
+in2_min Minimum output voltage
+in2_min_alarm Output voltage low alarm
+
+power1_label "pout1"
+power1_input Measured output power
+
+temp1_input Measured temperature
+temp1_crit Critical high temperature
+temp1_crit_alarm Chip temperature critical high alarm
+temp1_max Maximum temperature
+temp1_max_alarm Chip temperature high alarm