diff options
| author |   Sundar R Iyer <sundar.iyer@stericsson.com> | 2010-07-21 11:41:07 +0530 |
|---|---|---|
| committer |   Samuel Ortiz <sameo@linux.intel.com> | 2010-08-12 11:28:00 +0200 |
| commit | 5981f4e65cb455a820b3d07b8e4bac506233f3ea (patch) | |
| tree | 541a0ba41593bda73d1ce9b3ce004de43dcccd85 /drivers/mfd/stmpe.h | |
| parent | touchscreen: Fix sign bug (diff) | |
| download | linux-dev-5981f4e65cb455a820b3d07b8e4bac506233f3ea.tar.xz linux-dev-5981f4e65cb455a820b3d07b8e4bac506233f3ea.zip | |
mfd: Add stmpe auto sleep feature
Some STMPE devices support entering sleep mode automatically on a
specified timeout of inactivity on the I2C bus with the host system.
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Sundar R Iyer <sundar.iyer@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/stmpe.h')
| -rw-r--r-- | drivers/mfd/stmpe.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mfd/stmpe.h b/drivers/mfd/stmpe.h index 991f0ecbeb34..0dbdc4e8cd77 100644 --- a/drivers/mfd/stmpe.h +++ b/drivers/mfd/stmpe.h @@ -49,6 +49,7 @@ struct stmpe_variant_block { * Called with the I/O lock held. * @get_altfunc: callback to get the alternate function number for the * specific block + * @enable_autosleep: callback to configure autosleep with specified timeout */ struct stmpe_variant_info { const char *name; @@ -62,6 +63,7 @@ struct stmpe_variant_info { int num_irqs; int (*enable)(struct stmpe *stmpe, unsigned int blocks, bool enable); int (*get_altfunc)(struct stmpe *stmpe, enum stmpe_block block); + int (*enable_autosleep)(struct stmpe *stmpe, int autosleep_timeout); }; #define STMPE_ICR_LSB_HIGH (1 << 2) @@ -118,6 +120,7 @@ struct stmpe_variant_info { #define STMPE1601_NR_INTERNAL_IRQS 9 #define STMPE1601_REG_SYS_CTRL 0x02 +#define STMPE1601_REG_SYS_CTRL2 0x03 #define STMPE1601_REG_ICR_LSB 0x11 #define STMPE1601_REG_IER_LSB 0x13 #define STMPE1601_REG_ISR_MSB 0x14 @@ -137,6 +140,10 @@ struct stmpe_variant_info { #define STMPE1601_SYS_CTRL_ENABLE_KPC (1 << 1) #define STMPE1601_SYSCON_ENABLE_SPWM (1 << 0) +/* The 1601/2403 share the same masks */ +#define STMPE1601_AUTOSLEEP_TIMEOUT_MASK (0x7) +#define STPME1601_AUTOSLEEP_ENABLE (1 << 3) + /* * STMPE24xx */ |