[PATCH 06/10] mfd: twl-core: Do not create dummy pdata when booted with DT

From: Peter Ujfalusi
Date: Mon Dec 31 2012 - 06:11:30 EST


When booted with DT we can manage without the dummy pdata.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
drivers/mfd/twl-core.c | 31 +++++++------------------------
1 file changed, 7 insertions(+), 24 deletions(-)

diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 86cca9e..547fed5 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -1165,6 +1165,11 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
int status;
unsigned i, num_slaves;

+ if (!node && !pdata) {
+ dev_err(&client->dev, "no platform data\n");
+ return -EINVAL;
+ }
+
pdev = platform_device_alloc(DRIVER_NAME, -1);
if (!pdev) {
dev_err(&client->dev, "can't alloc pdev\n");
@@ -1177,28 +1182,6 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
return status;
}

- if (node && !pdata) {
- /*
- * XXX: Temporary pdata until the information is correctly
- * retrieved by every TWL modules from DT.
- */
- pdata = devm_kzalloc(&client->dev,
- sizeof(struct twl4030_platform_data),
- GFP_KERNEL);
- if (!pdata) {
- status = -ENOMEM;
- goto free;
- }
- }
-
- if (!pdata) {
- dev_dbg(&client->dev, "no platform data?\n");
- status = -EINVAL;
- goto free;
- }
-
- platform_set_drvdata(pdev, pdata);
-
if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
dev_dbg(&client->dev, "can't talk I2C?\n");
status = -EIO;
@@ -1264,7 +1247,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
inuse = true;

/* setup clock framework */
- clocks_init(&pdev->dev, pdata->clock);
+ clocks_init(&pdev->dev, pdata ? pdata->clock : NULL);

/* read TWL IDCODE Register */
if (twl_id == TWL4030_CLASS_ID) {
@@ -1273,7 +1256,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
}

/* load power event scripts */
- if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata->power)
+ if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata && pdata->power)
twl4030_power_init(pdata->power);

/* Maybe init the T2 Interrupt subsystem */
--
1.8.0.2

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