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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2013-01-16 14:53:53 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-02-14 00:22:50 +0100 |
| commit | 6dd810b5e6fa688010dcb6d386c61589e850aaaa (patch) | |
| tree | b56a34b5de9e7f42c93e4ddf851e3d3af1586f7a | |
| parent | 3c3302794cc79b363779a762051ebe8670812791 (diff) | |
| download | linux-6dd810b5e6fa688010dcb6d386c61589e850aaaa.tar.gz linux-6dd810b5e6fa688010dcb6d386c61589e850aaaa.tar.bz2 linux-6dd810b5e6fa688010dcb6d386c61589e850aaaa.zip | |
mfd: twl-core: Allocate twl_modules dynamically
At boot time we can allocate the twl_modules array dynamically based on the
twl class we are using with devm_kzalloc() instead of the static
twl_modules[] array.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| -rw-r--r-- | drivers/mfd/twl-core.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index f07317b35e4a..fbff8301dfca 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -66,8 +66,6 @@ /* Triton Core internal information (BEGIN) */ -#define TWL_NUM_SLAVES 4 - /* Base Address defns for twl4030_map[] */ /* subchip/slave 0 - USB ID */ @@ -162,7 +160,7 @@ struct twl_client { struct regmap *regmap; }; -static struct twl_client twl_modules[TWL_NUM_SLAVES]; +static struct twl_client *twl_modules; /* mapping the module id to slave id and base address */ struct twl_mapping { @@ -284,6 +282,14 @@ static struct regmap_config twl6030_regmap_config[3] = { /*----------------------------------------------------------------------*/ +static inline int twl_get_num_slaves(void) +{ + if (twl_class_is_4030()) + return 4; /* TWL4030 class have four slave address */ + else + return 3; /* TWL6030 class have three slave address */ +} + static inline int twl_get_last_module(void) { if (twl_class_is_4030()) @@ -1127,17 +1133,15 @@ static int twl_remove(struct i2c_client *client) unsigned i, num_slaves; int status; - if (twl_class_is_4030()) { + if (twl_class_is_4030()) status = twl4030_exit_irq(); - num_slaves = TWL_NUM_SLAVES; - } else { + else status = twl6030_exit_irq(); - num_slaves = TWL_NUM_SLAVES - 1; - } if (status < 0) return status; + num_slaves = twl_get_num_slaves(); for (i = 0; i < num_slaves; i++) { struct twl_client *twl = &twl_modules[i]; @@ -1215,12 +1219,19 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) twl_map[TWL_MODULE_MAIN_CHARGE].base = TWL6025_BASEADD_CHARGER; twl_regmap_config = twl6030_regmap_config; - num_slaves = TWL_NUM_SLAVES - 1; } else { twl_id = TWL4030_CLASS_ID; twl_map = &twl4030_map[0]; twl_regmap_config = twl4030_regmap_config; - num_slaves = TWL_NUM_SLAVES; + } + + num_slaves = twl_get_num_slaves(); + twl_modules = devm_kzalloc(&client->dev, + sizeof(struct twl_client) * num_slaves, + GFP_KERNEL); + if (!twl_modules) { + status = -ENOMEM; + goto free; } for (i = 0; i < num_slaves; i++) { |