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mfd: Detach twl6040 from the pmic mfd driver 

On OMAP4 platform audio has separate IC, it is no longer part
of the pmic chip.
Prevent twl-core to claim the 0x4b address, which belongs to
the twl6040 audio IC.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Peter Ujfalusi 2012-01-04 14:58:33 +02:00 committed by Samuel Ortiz
parent ec1a07b344
commit 364cedb2f9
1 changed files with 33 additions and 26 deletions
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59
drivers/mfd/twl-core.c
View File

@ -113,8 +113,8 @@
#define twl_has_watchdog() false
#endif
#if defined(CONFIG_MFD_TWL4030_AUDIO) || defined(CONFIG_MFD_TWL4030_AUDIO_MODULE) ||\
defined(CONFIG_TWL6040_CORE) || defined(CONFIG_TWL6040_CORE_MODULE)
#if defined(CONFIG_MFD_TWL4030_AUDIO) || \
defined(CONFIG_MFD_TWL4030_AUDIO_MODULE)
#define twl_has_codec() true
#else
#define twl_has_codec() false
@ -144,6 +144,7 @@
#define SUB_CHIP_ID1 1
#define SUB_CHIP_ID2 2
#define SUB_CHIP_ID3 3
#define SUB_CHIP_ID_INVAL 0xff
#define TWL_MODULE_LAST TWL4030_MODULE_LAST
@ -312,7 +313,7 @@ static struct twl_mapping twl6030_map[] = {
* so they continue to match the order in this table.
*/
{ SUB_CHIP_ID1, TWL6030_BASEADD_USB },
{ SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO },
{ SUB_CHIP_ID_INVAL, TWL6030_BASEADD_AUDIO },
{ SUB_CHIP_ID2, TWL6030_BASEADD_DIEID },
{ SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
{ SUB_CHIP_ID1, TWL6030_BASEADD_PIH },
@ -374,6 +375,11 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
return -EPERM;
}
sid = twl_map[mod_no].sid;
if (unlikely(sid == SUB_CHIP_ID_INVAL)) {
pr_err("%s: module %d is not part of the pmic\n",
DRIVER_NAME, mod_no);
return -EINVAL;
}
twl = &twl_modules[sid];
mutex_lock(&twl->xfer_lock);
@ -431,6 +437,11 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
return -EPERM;
}
sid = twl_map[mod_no].sid;
if (unlikely(sid == SUB_CHIP_ID_INVAL)) {
pr_err("%s: module %d is not part of the pmic\n",
DRIVER_NAME, mod_no);
return -EINVAL;
}
twl = &twl_modules[sid];
mutex_lock(&twl->xfer_lock);
@ -832,15 +843,6 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
return PTR_ERR(child);
}
if (twl_has_codec() && pdata->audio && twl_class_is_6030()) {
sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid;
child = add_child(sub_chip_id, "twl6040",
pdata->audio, sizeof(*pdata->audio),
false, 0, 0);
if (IS_ERR(child))
return PTR_ERR(child);
}
/* twl4030 regulators */
if (twl_has_regulator() && twl_class_is_4030()) {
child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1,
@ -1156,18 +1158,21 @@ static void clocks_init(struct device *dev,
static int twl_remove(struct i2c_client *client)
{
unsigned i;
unsigned i, num_slaves;
int status;
if (twl_class_is_4030())
if (twl_class_is_4030()) {
status = twl4030_exit_irq();
else
num_slaves = TWL_NUM_SLAVES;
} else {
status = twl6030_exit_irq();
num_slaves = TWL_NUM_SLAVES - 1;
}
if (status < 0)
return status;
for (i = 0; i < TWL_NUM_SLAVES; i++) {
for (i = 0; i < num_slaves; i++) {
struct twl_client *twl = &twl_modules[i];
if (twl->client && twl->client != client)
@ -1186,7 +1191,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
struct device_node *node = client->dev.of_node;
int irq_base = 0;
int status;
unsigned i;
unsigned i, num_slaves;
if (node && !pdata) {
/*
@ -1215,7 +1220,17 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
return -EBUSY;
}
for (i = 0; i < TWL_NUM_SLAVES; i++) {
if ((id->driver_data) & TWL6030_CLASS) {
twl_id = TWL6030_CLASS_ID;
twl_map = &twl6030_map[0];
num_slaves = TWL_NUM_SLAVES - 1;
} else {
twl_id = TWL4030_CLASS_ID;
twl_map = &twl4030_map[0];
num_slaves = TWL_NUM_SLAVES;
}
for (i = 0; i < num_slaves; i++) {
struct twl_client *twl = &twl_modules[i];
twl->address = client->addr + i;
@ -1236,14 +1251,6 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
inuse = true;
if ((id->driver_data) & TWL6030_CLASS) {
twl_id = TWL6030_CLASS_ID;
twl_map = &twl6030_map[0];
} else {
twl_id = TWL4030_CLASS_ID;
twl_map = &twl4030_map[0];
}
/* setup clock framework */
clocks_init(&client->dev, pdata->clock);