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authorJim Wright <wrightj@linux.vnet.ibm.com>2019-12-05 17:24:11 -0600
committerGuenter Roeck <linux@roeck-us.net>2020-01-23 13:15:09 -0800
commita470f11c5ba2febbbba941167e106c726bc1297b (patch)
treeddf2d92bafdf45f274480f2337c873534bb9ebb7 /Documentation/hwmon
parentdt-bindings: hwmon/pmbus: Add ti,ucd90320 power sequencer (diff)
downloadlinux-dev-a470f11c5ba2febbbba941167e106c726bc1297b.tar.xz
linux-dev-a470f11c5ba2febbbba941167e106c726bc1297b.zip
hwmon: (pmbus/ucd9000) Add support for UCD90320 Power Sequencer
Add support for the UCD90320 chip and its expanded set of GPIO pins. Signed-off-by: Jim Wright <wrightj@linux.vnet.ibm.com> Link: https://lore.kernel.org/r/20191205232411.21492-3-wrightj@linux.vnet.ibm.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/ucd9000.rst12
1 files changed, 10 insertions, 2 deletions
diff --git a/Documentation/hwmon/ucd9000.rst b/Documentation/hwmon/ucd9000.rst
index 746f21fcb48c..704f0cbd95d3 100644
--- a/Documentation/hwmon/ucd9000.rst
+++ b/Documentation/hwmon/ucd9000.rst
@@ -3,9 +3,10 @@ Kernel driver ucd9000
Supported chips:
- * TI UCD90120, UCD90124, UCD90160, UCD9090, and UCD90910
+ * TI UCD90120, UCD90124, UCD90160, UCD90320, UCD9090, and UCD90910
- Prefixes: 'ucd90120', 'ucd90124', 'ucd90160', 'ucd9090', 'ucd90910'
+ Prefixes: 'ucd90120', 'ucd90124', 'ucd90160', 'ucd90320', 'ucd9090',
+ 'ucd90910'
Addresses scanned: -
@@ -14,6 +15,7 @@ Supported chips:
- http://focus.ti.com/lit/ds/symlink/ucd90120.pdf
- http://focus.ti.com/lit/ds/symlink/ucd90124.pdf
- http://focus.ti.com/lit/ds/symlink/ucd90160.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd90320.pdf
- http://focus.ti.com/lit/ds/symlink/ucd9090.pdf
- http://focus.ti.com/lit/ds/symlink/ucd90910.pdf
@@ -45,6 +47,12 @@ power-on reset signals, external interrupts, cascading, or other system
functions. Twelve of these pins offer PWM functionality. Using these pins, the
UCD90160 offers support for margining, and general-purpose PWM functions.
+The UCD90320 is a 32-rail PMBus/I2C addressable power-supply sequencer and
+monitor. The 24 integrated ADC channels (AMONx) monitor the power supply
+voltage, current, and temperature. Of the 84 GPIO pins, 8 can be used as
+digital monitors (DMONx), 32 to enable the power supply (ENx), 24 for margining
+(MARx), 16 for logical GPO, and 32 GPIs for cascading, and system function.
+
The UCD9090 is a 10-rail PMBus/I2C addressable power-supply sequencer and
monitor. The device integrates a 12-bit ADC for monitoring up to 10 power-supply
voltage inputs. Twenty-three GPIO pins can be used for power supply enables,