linux/drivers/mxc/pmic/core/mc13892.c File Reference

This file contains MC13892 specific PMIC code. This implementaion may differ for each PMIC chip. More...

Functions

int pmic_write (int reg_num, const unsigned int reg_val)
int pmic_spi_setup (struct spi_device *spi)
int pmic_init_registers (void)
unsigned int pmic_get_active_events (unsigned int *active_events)
int pmic_event_unmask (type_event event)
int pmic_event_mask (type_event event)
void pmic_get_revision (pmic_version_t *ver)

Detailed Description

This file contains MC13892 specific PMIC code. This implementaion may differ for each PMIC chip.


Function Documentation

int pmic_event_mask ( type_event  event  ) 

This function sets a bit in mask register of pmic to disable an event IT.

Parameters:
event the event to be masked
Returns:
This function returns PMIC_SUCCESS on SUCCESS, error on FAILURE.

References pmic_write_reg().

int pmic_event_unmask ( type_event  event  ) 

This function unsets a bit in mask register of pmic to unmask an event IT.

Parameters:
event the event to be unmasked
Returns:
This function returns PMIC_SUCCESS on SUCCESS, error on FAILURE.

References pmic_write_reg().

unsigned int pmic_get_active_events ( unsigned int *  active_events  ) 

This function reads the interrupt status registers of PMIC and determine the current active events.

Parameters:
active_events array pointer to be used to return active event numbers.
Returns:
This function returns PMIC version.

References pmic_read(), and pmic_write().

void pmic_get_revision ( pmic_version_t ver  ) 

This function returns the PMIC version in system.

Parameters:
ver pointer to the pmic_version_t structure
Returns:
This function returns PMIC version.

References pmic_version_t::id, pmic_read(), and pmic_version_t::revision.

int pmic_init_registers ( void   ) 

This function initializes the PMIC registers.

Returns:
None

References pmic_write().

int pmic_spi_setup ( struct spi_device *  spi  ) 

This function initializes the SPI device parameters for this PMIC.

Parameters:
spi the SPI slave device(PMIC)
Returns:
None

References mxc_pmic::spi.

int pmic_write ( int  reg_num,
const unsigned int  reg_val 
)

This function is called to write a value to the register on PMIC.

Parameters:
reg_num number of the pmic register to be written
reg_val value to be written
Returns:
Returns 0 on success -1 on failure.

References mxc_pmic::spi, and spi_rw().

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