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>
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index f07317b..fbff830 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 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 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 @@
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_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++) {