diff options
| author | Tero Kristo <t-kristo@ti.com> | 2012-02-16 12:27:52 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-03-11 20:08:45 +0000 |
| commit | 63bfff4e20211b464cbea6e79e5fd36df227c154 (patch) | |
| tree | 4ea7a62c37820578be7ecbc943f6e62a017c64e4 /drivers/mfd/twl-core.c | |
| parent | a33b6e5a8fb5fadeef206bacef13117e8a3080c4 (diff) | |
| download | lwn-63bfff4e20211b464cbea6e79e5fd36df227c154.tar.gz lwn-63bfff4e20211b464cbea6e79e5fd36df227c154.zip | |
regulator: twl4030: add support for external voltage get/set
This is needed for SMPS regulators, which use the OMAP voltage
processor for voltage get/set functions instead of the normal I2C
channel. For this purpose, regulator_init_data->driver_data contents
are expanded, it is now a struct which contains function pointers
for the set/get voltage operations, a data pointer for these, and
the previously used features bitmask.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com> [for the MFD part]
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/mfd/twl-core.c')
| -rw-r--r-- | drivers/mfd/twl-core.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index e04e04ddc15e..fae5f76d6ccb 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -619,6 +619,8 @@ add_regulator_linked(int num, struct regulator_init_data *pdata, unsigned num_consumers, unsigned long features) { unsigned sub_chip_id; + struct twl_regulator_driver_data drv_data; + /* regulator framework demands init_data ... */ if (!pdata) return NULL; @@ -628,7 +630,19 @@ add_regulator_linked(int num, struct regulator_init_data *pdata, pdata->num_consumer_supplies = num_consumers; } - pdata->driver_data = (void *)features; + if (pdata->driver_data) { + /* If we have existing drv_data, just add the flags */ + struct twl_regulator_driver_data *tmp; + tmp = pdata->driver_data; + tmp->features |= features; + } else { + /* add new driver data struct, used only during init */ + drv_data.features = features; + drv_data.set_voltage = NULL; + drv_data.get_voltage = NULL; + drv_data.data = NULL; + pdata->driver_data = &drv_data; + } /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; |