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MFD: twl6040: function to query the vibra status for clients 

If the client only interested, if any of the vibra channels enabled, or
if any of the channels are set to receive audio data via PDM.

This function targets mainly the vibra driver, so it can check if it is
allowed to execute effects ot not.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Peter Ujfalusi 2011-10-12 11:57:55 +03:00 committed by Mark Brown
parent 31b402e3c9
commit 70601ec10a
2 changed files with 15 additions and 0 deletions
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12
drivers/mfd/twl6040-core.c
View File

@ -444,6 +444,18 @@ unsigned int twl6040_get_sysclk(struct twl6040 *twl6040)
}
EXPORT_SYMBOL(twl6040_get_sysclk);
/* Get the combined status of the vibra control register */
int twl6040_get_vibralr_status(struct twl6040 *twl6040)
{
u8 status;
status = twl6040->vibra_ctrl_cache[0] | twl6040->vibra_ctrl_cache[1];
status &= (TWL6040_VIBENA | TWL6040_VIBSEL);
return status;
}
EXPORT_SYMBOL(twl6040_get_vibralr_status);
static struct resource twl6040_vibra_rsrc[] = {
{
.flags = IORESOURCE_IRQ,

3
include/linux/mfd/twl6040.h
View File

@ -209,10 +209,13 @@ int twl6040_get_pll(struct twl6040 *twl6040);
unsigned int twl6040_get_sysclk(struct twl6040 *twl6040);
int twl6040_irq_init(struct twl6040 *twl6040);
void twl6040_irq_exit(struct twl6040 *twl6040);
/* Get the combined status of the vibra control register */
int twl6040_get_vibralr_status(struct twl6040 *twl6040);
static inline int twl6040_get_revid(struct twl6040 *twl6040)
{
return twl6040->rev;
}
#endif /* End of __TWL6040_CODEC_H__ */