diff options
| author | Vincent Palatin <vpalatin@chromium.org> | 2011-01-31 11:31:49 -0500 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2011-03-23 10:41:45 +0100 |
| commit | 6f9f13bf9b9fabf2da2028cb7c1e732ef2efa26d (patch) | |
| tree | a5b0626ed1030952a9c7bf4161ffc63bca3175fe /drivers/mfd/tps6586x.c | |
| parent | de8c8b0683043e81d2001e446f2bcb143affb0b2 (diff) | |
| download | linux-3.10-6f9f13bf9b9fabf2da2028cb7c1e732ef2efa26d.tar.gz linux-3.10-6f9f13bf9b9fabf2da2028cb7c1e732ef2efa26d.tar.bz2 linux-3.10-6f9f13bf9b9fabf2da2028cb7c1e732ef2efa26d.zip | |
mfd: Invert tps6586x GPIO and subdevices initialization
When using a fixed voltage regulator triggered by a TPS6586x GPIO,
this allows to declare and initialize it conveniently from the "subdev" list.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/tps6586x.c')
| -rw-r--r-- | drivers/mfd/tps6586x.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index e9018d1394e..0aa9186aec1 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -288,12 +288,10 @@ static int tps6586x_gpio_output(struct gpio_chip *gc, unsigned offset, return tps6586x_update(tps6586x->dev, TPS6586X_GPIOSET1, val, mask); } -static void tps6586x_gpio_init(struct tps6586x *tps6586x, int gpio_base) +static int tps6586x_gpio_init(struct tps6586x *tps6586x, int gpio_base) { - int ret; - if (!gpio_base) - return; + return 0; tps6586x->gpio.owner = THIS_MODULE; tps6586x->gpio.label = tps6586x->client->name; @@ -307,9 +305,7 @@ static void tps6586x_gpio_init(struct tps6586x *tps6586x, int gpio_base) tps6586x->gpio.set = tps6586x_gpio_set; tps6586x->gpio.get = tps6586x_gpio_get; - ret = gpiochip_add(&tps6586x->gpio); - if (ret) - dev_warn(tps6586x->dev, "GPIO registration failed: %d\n", ret); + return gpiochip_add(&tps6586x->gpio); } static int __remove_subdev(struct device *dev, void *unused) @@ -517,17 +513,28 @@ static int __devinit tps6586x_i2c_probe(struct i2c_client *client, } } + ret = tps6586x_gpio_init(tps6586x, pdata->gpio_base); + if (ret) { + dev_err(&client->dev, "GPIO registration failed: %d\n", ret); + goto err_gpio_init; + } + ret = tps6586x_add_subdevs(tps6586x, pdata); if (ret) { dev_err(&client->dev, "add devices failed: %d\n", ret); goto err_add_devs; } - tps6586x_gpio_init(tps6586x, pdata->gpio_base); - return 0; err_add_devs: + if (pdata->gpio_base) { + ret = gpiochip_remove(&tps6586x->gpio); + if (ret) + dev_err(&client->dev, "Can't remove gpio chip: %d\n", + ret); + } +err_gpio_init: if (client->irq) free_irq(client->irq, tps6586x); err_irq_init: @@ -587,4 +594,3 @@ module_exit(tps6586x_exit); MODULE_DESCRIPTION("TPS6586X core driver"); MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); MODULE_LICENSE("GPL"); - |