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 --- drivers/mfd/twl-core.c | 58 +++++++++++++++++++++++++++-------------------- 1 files changed, 33 insertions(+), 25 deletions(-)
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index e04e04d..ac6fdd93 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -115,8 +115,8 @@ #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 @@ -146,6 +146,7 @@ #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
@@ -315,7 +316,7 @@ 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 }, @@ -377,6 +378,11 @@ 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); @@ -434,6 +440,11 @@ 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); @@ -834,15 +845,6 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features) 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, @@ -1163,18 +1165,21 @@ int twl6030_exit_irq(void);
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) @@ -1190,7 +1195,7 @@ static int __devinit twl_probe(struct i2c_client *client, const struct i2c_device_id *id) { int status; - unsigned i; + unsigned i, num_slaves; struct twl4030_platform_data *pdata = client->dev.platform_data; struct device_node *node = client->dev.of_node; u8 temp; @@ -1244,7 +1249,17 @@ 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; @@ -1263,13 +1278,6 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) mutex_init(&twl->xfer_lock); } 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);