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259 lines
6.8 KiB
259 lines
6.8 KiB
Kernel driver zl6100 |
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==================== |
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Supported chips: |
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* Renesas / Intersil / Zilker Labs ZL2004 |
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Prefix: 'zl2004' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl2004-datasheet.pdf |
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* Renesas / Intersil / Zilker Labs ZL2005 |
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Prefix: 'zl2005' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl2005-datasheet.pdf |
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* Renesas / Intersil / Zilker Labs ZL2006 |
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Prefix: 'zl2006' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl2006-datasheet.pdf |
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* Renesas / Intersil / Zilker Labs ZL2008 |
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Prefix: 'zl2008' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl2008-datasheet.pdf |
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* Renesas / Intersil / Zilker Labs ZL2105 |
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Prefix: 'zl2105' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl2105-datasheet.pdf |
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* Renesas / Intersil / Zilker Labs ZL2106 |
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Prefix: 'zl2106' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl2106-datasheet.pdf |
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* Renesas / Intersil / Zilker Labs ZL6100 |
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Prefix: 'zl6100' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl6100-datasheet.pdf |
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* Renesas / Intersil / Zilker Labs ZL6105 |
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Prefix: 'zl6105' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl6105-datasheet.pdf |
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* Renesas / Intersil / Zilker Labs ZL8802 |
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Prefix: 'zl8802' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl8802-datasheet |
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* Renesas / Intersil / Zilker Labs ZL9101M |
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Prefix: 'zl9101' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl9101m-datasheet |
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* Renesas / Intersil / Zilker Labs ZL9117M |
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Prefix: 'zl9117' |
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Addresses scanned: - |
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Datasheet: https://www.renesas.com/us/en/document/dst/zl9117m-datasheet |
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* Renesas / Intersil / Zilker Labs ZLS1003, ZLS4009 |
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Prefix: 'zls1003', zls4009 |
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Addresses scanned: - |
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Datasheet: Not published |
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* Flex BMR450, BMR451 |
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Prefix: 'bmr450', 'bmr451' |
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Addresses scanned: - |
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Datasheet: |
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https://flexpowermodules.com/resources/fpm-techspec-bmr450-digital-pol-regulators-20a |
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* Flex BMR462, BMR463, BMR464 |
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Prefixes: 'bmr462', 'bmr463', 'bmr464' |
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Addresses scanned: - |
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Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr462 |
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* Flex BMR465, BMR467 |
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Prefixes: 'bmr465', 'bmr467' |
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Addresses scanned: - |
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Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr465-digital-pol |
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* Flex BMR466 |
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Prefixes: 'bmr466' |
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Addresses scanned: - |
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Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr466-8x12 |
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* Flex BMR469 |
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Prefixes: 'bmr469' |
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Addresses scanned: - |
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Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr4696001 |
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Author: Guenter Roeck <[email protected]> |
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Description |
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----------- |
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This driver supports hardware monitoring for Renesas / Intersil / Zilker Labs |
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ZL6100 and compatible digital DC-DC controllers. |
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The driver is a client driver to the core PMBus driver. Please see |
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Documentation/hwmon/pmbus.rst and Documentation.hwmon/pmbus-core for details |
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on PMBus client drivers. |
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Usage Notes |
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----------- |
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This driver does not auto-detect devices. You will have to instantiate the |
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devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for |
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details. |
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.. warning:: |
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Do not access chip registers using the i2cdump command, and do not use |
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any of the i2ctools commands on a command register used to save and restore |
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configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by |
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this driver interpret any access to those command registers (including read |
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commands) as request to execute the command in question. Unless write accesses |
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to those registers are protected, this may result in power loss, board resets, |
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and/or Flash corruption. Worst case, your board may turn into a brick. |
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Platform data support |
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--------------------- |
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The driver supports standard PMBus driver platform data. |
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Module parameters |
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----------------- |
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delay |
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----- |
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Renesas/Intersil/Zilker Labs DC-DC controllers require a minimum interval |
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between I2C bus accesses. According to Intersil, the minimum interval is 2 ms, |
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though 1 ms appears to be sufficient and has not caused any problems in testing. |
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The problem is known to affect all currently supported chips. For manual override, |
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the driver provides a writeable module parameter, 'delay', which can be used |
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to set the interval to a value between 0 and 65,535 microseconds. |
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Sysfs entries |
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------------- |
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The following attributes are supported. Limits are read-write; all other |
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attributes are read-only. |
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======================= ======================================================== |
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in1_label "vin" |
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in1_input Measured input voltage. |
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in1_min Minimum input voltage. |
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in1_max Maximum input voltage. |
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in1_lcrit Critical minimum input voltage. |
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in1_crit Critical maximum input voltage. |
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in1_min_alarm Input voltage low alarm. |
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in1_max_alarm Input voltage high alarm. |
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in1_lcrit_alarm Input voltage critical low alarm. |
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in1_crit_alarm Input voltage critical high alarm. |
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in2_label "vmon" |
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in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M, |
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ZL9117M) pin. Reported voltage is 16x the voltage on the |
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pin (adjusted internally by the chip). |
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in2_lcrit Critical minimum VMON/VDRV Voltage. |
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in2_crit Critical maximum VMON/VDRV voltage. |
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in2_lcrit_alarm VMON/VDRV voltage critical low alarm. |
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in2_crit_alarm VMON/VDRV voltage critical high alarm. |
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vmon attributes are supported on ZL2004, ZL8802, |
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ZL9101M, ZL9117M and ZLS4009 only. |
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inX_label "vout[12]" |
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inX_input Measured output voltage. |
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inX_lcrit Critical minimum output Voltage. |
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inX_crit Critical maximum output voltage. |
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inX_lcrit_alarm Critical output voltage critical low alarm. |
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inX_crit_alarm Critical output voltage critical high alarm. |
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X is 3 for ZL2004, ZL9101M, and ZL9117M, |
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3, 4 for ZL8802 and 2 otherwise. |
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curr1_label "iin" |
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curr1_input Measured input current. |
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iin attributes are supported on ZL8802 only |
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currY_label "iout[12]" |
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currY_input Measured output current. |
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currY_lcrit Critical minimum output current. |
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currY_crit Critical maximum output current. |
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currY_lcrit_alarm Output current critical low alarm. |
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currY_crit_alarm Output current critical high alarm. |
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Y is 2, 3 for ZL8802, 1 otherwise |
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temp[12]_input Measured temperature. |
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temp[12]_min Minimum temperature. |
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temp[12]_max Maximum temperature. |
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temp[12]_lcrit Critical low temperature. |
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temp[12]_crit Critical high temperature. |
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temp[12]_min_alarm Chip temperature low alarm. |
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temp[12]_max_alarm Chip temperature high alarm. |
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temp[12]_lcrit_alarm Chip temperature critical low alarm. |
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temp[12]_crit_alarm Chip temperature critical high alarm. |
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======================= ========================================================
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