| What: /sys/class/regulator/.../state |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| state. This holds the regulator output state. |
| |
| This will be one of the following strings: |
| |
| 'enabled' |
| 'disabled' |
| 'unknown' |
| |
| 'enabled' means the regulator output is ON and is supplying |
| power to the system. |
| |
| 'disabled' means the regulator output is OFF and is not |
| supplying power to the system.. |
| |
| 'unknown' means software cannot determine the state. |
| |
| NOTE: this field can be used in conjunction with microvolts |
| and microamps to determine regulator output levels. |
| |
| |
| What: /sys/class/regulator/.../type |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| type. This holds the regulator type. |
| |
| This will be one of the following strings: |
| |
| 'voltage' |
| 'current' |
| 'unknown' |
| |
| 'voltage' means the regulator output voltage can be controlled |
| by software. |
| |
| 'current' means the regulator output current limit can be |
| controlled by software. |
| |
| 'unknown' means software cannot control either voltage or |
| current limit. |
| |
| |
| What: /sys/class/regulator/.../microvolts |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| microvolts. This holds the regulator output voltage setting |
| measured in microvolts (i.e. E-6 Volts). |
| |
| NOTE: This value should not be used to determine the regulator |
| output voltage level as this value is the same regardless of |
| whether the regulator is enabled or disabled. |
| |
| |
| What: /sys/class/regulator/.../microamps |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| microamps. This holds the regulator output current limit |
| setting measured in microamps (i.e. E-6 Amps). |
| |
| NOTE: This value should not be used to determine the regulator |
| output current level as this value is the same regardless of |
| whether the regulator is enabled or disabled. |
| |
| |
| What: /sys/class/regulator/.../opmode |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| opmode. This holds the regulator operating mode setting. |
| |
| The opmode value can be one of the following strings: |
| |
| 'fast' |
| 'normal' |
| 'idle' |
| 'standby' |
| 'unknown' |
| |
| The modes are described in include/linux/regulator/regulator.h |
| |
| NOTE: This value should not be used to determine the regulator |
| output operating mode as this value is the same regardless of |
| whether the regulator is enabled or disabled. |
| |
| |
| What: /sys/class/regulator/.../min_microvolts |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| min_microvolts. This holds the minimum safe working regulator |
| output voltage setting for this domain measured in microvolts. |
| |
| NOTE: this will return the string 'constraint not defined' if |
| the power domain has no min microvolts constraint defined by |
| platform code. |
| |
| |
| What: /sys/class/regulator/.../max_microvolts |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| max_microvolts. This holds the maximum safe working regulator |
| output voltage setting for this domain measured in microvolts. |
| |
| NOTE: this will return the string 'constraint not defined' if |
| the power domain has no max microvolts constraint defined by |
| platform code. |
| |
| |
| What: /sys/class/regulator/.../min_microamps |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| min_microamps. This holds the minimum safe working regulator |
| output current limit setting for this domain measured in |
| microamps. |
| |
| NOTE: this will return the string 'constraint not defined' if |
| the power domain has no min microamps constraint defined by |
| platform code. |
| |
| |
| What: /sys/class/regulator/.../max_microamps |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| max_microamps. This holds the maximum safe working regulator |
| output current limit setting for this domain measured in |
| microamps. |
| |
| NOTE: this will return the string 'constraint not defined' if |
| the power domain has no max microamps constraint defined by |
| platform code. |
| |
| |
| What: /sys/class/regulator/.../name |
| Date: October 2008 |
| KernelVersion: 2.6.28 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| name. This holds a string identifying the regulator for |
| display purposes. |
| |
| NOTE: this will be empty if no suitable name is provided |
| by platform or regulator drivers. |
| |
| |
| What: /sys/class/regulator/.../num_users |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| num_users. This holds the number of consumer devices that |
| have called regulator_enable() on this regulator. |
| |
| |
| What: /sys/class/regulator/.../requested_microamps |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| requested_microamps. This holds the total requested load |
| current in microamps for this regulator from all its consumer |
| devices. |
| |
| |
| What: /sys/class/regulator/.../parent |
| Date: April 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Some regulator directories will contain a link called parent. |
| This points to the parent or supply regulator if one exists. |
| |
| What: /sys/class/regulator/.../suspend_mem_microvolts |
| Date: May 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| suspend_mem_microvolts. This holds the regulator output |
| voltage setting for this domain measured in microvolts when |
| the system is suspended to memory. |
| |
| NOTE: this will return the string 'not defined' if |
| the power domain has no suspend to memory voltage defined by |
| platform code. |
| |
| What: /sys/class/regulator/.../suspend_disk_microvolts |
| Date: May 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| suspend_disk_microvolts. This holds the regulator output |
| voltage setting for this domain measured in microvolts when |
| the system is suspended to disk. |
| |
| NOTE: this will return the string 'not defined' if |
| the power domain has no suspend to disk voltage defined by |
| platform code. |
| |
| What: /sys/class/regulator/.../suspend_standby_microvolts |
| Date: May 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| suspend_standby_microvolts. This holds the regulator output |
| voltage setting for this domain measured in microvolts when |
| the system is suspended to standby. |
| |
| NOTE: this will return the string 'not defined' if |
| the power domain has no suspend to standby voltage defined by |
| platform code. |
| |
| What: /sys/class/regulator/.../suspend_mem_mode |
| Date: May 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| suspend_mem_mode. This holds the regulator operating mode |
| setting for this domain when the system is suspended to |
| memory. |
| |
| NOTE: this will return the string 'not defined' if |
| the power domain has no suspend to memory mode defined by |
| platform code. |
| |
| What: /sys/class/regulator/.../suspend_disk_mode |
| Date: May 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| suspend_disk_mode. This holds the regulator operating mode |
| setting for this domain when the system is suspended to disk. |
| |
| NOTE: this will return the string 'not defined' if |
| the power domain has no suspend to disk mode defined by |
| platform code. |
| |
| What: /sys/class/regulator/.../suspend_standby_mode |
| Date: May 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| suspend_standby_mode. This holds the regulator operating mode |
| setting for this domain when the system is suspended to |
| standby. |
| |
| NOTE: this will return the string 'not defined' if |
| the power domain has no suspend to standby mode defined by |
| platform code. |
| |
| What: /sys/class/regulator/.../suspend_mem_state |
| Date: May 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| suspend_mem_state. This holds the regulator operating state |
| when suspended to memory. |
| |
| This will be one of the following strings: |
| |
| 'enabled' |
| 'disabled' |
| 'not defined' |
| |
| What: /sys/class/regulator/.../suspend_disk_state |
| Date: May 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| suspend_disk_state. This holds the regulator operating state |
| when suspended to disk. |
| |
| This will be one of the following strings: |
| |
| 'enabled' |
| 'disabled' |
| 'not defined' |
| |
| What: /sys/class/regulator/.../suspend_standby_state |
| Date: May 2008 |
| KernelVersion: 2.6.26 |
| Contact: Liam Girdwood <lrg@slimlogic.co.uk> |
| Description: |
| Each regulator directory will contain a field called |
| suspend_standby_state. This holds the regulator operating |
| state when suspended to standby. |
| |
| This will be one of the following strings: |
| |
| 'enabled' |
| 'disabled' |
| 'not defined' |