diff options
Diffstat (limited to 'drivers/input/mouse/cyapa.c')
| -rw-r--r-- | drivers/input/mouse/cyapa.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c index 6195ccb3cfde..1479ca996647 100644 --- a/drivers/input/mouse/cyapa.c +++ b/drivers/input/mouse/cyapa.c @@ -21,6 +21,7 @@ #include <linux/interrupt.h> #include <linux/module.h> #include <linux/mutex.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/uaccess.h> #include <linux/pm_runtime.h> @@ -1241,6 +1242,13 @@ static void cyapa_remove_sysfs_group(void *data) sysfs_remove_group(&cyapa->client->dev.kobj, &cyapa_sysfs_group); } +static void cyapa_disable_regulator(void *data) +{ + struct cyapa *cyapa = data; + + regulator_disable(cyapa->vcc); +} + static int cyapa_probe(struct i2c_client *client, const struct i2c_device_id *dev_id) { @@ -1274,6 +1282,27 @@ static int cyapa_probe(struct i2c_client *client, sprintf(cyapa->phys, "i2c-%d-%04x/input0", client->adapter->nr, client->addr); + cyapa->vcc = devm_regulator_get(dev, "vcc"); + if (IS_ERR(cyapa->vcc)) { + error = PTR_ERR(cyapa->vcc); + dev_err(dev, "failed to get vcc regulator: %d\n", error); + return error; + } + + error = regulator_enable(cyapa->vcc); + if (error) { + dev_err(dev, "failed to enable regulator: %d\n", error); + return error; + } + + error = devm_add_action(dev, cyapa_disable_regulator, cyapa); + if (error) { + cyapa_disable_regulator(cyapa); + dev_err(dev, "failed to add disable regulator action: %d\n", + error); + return error; + } + error = cyapa_initialize(cyapa); if (error) { dev_err(dev, "failed to detect and initialize tp device.\n"); |