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input: sensors: fix batching can't be disabled issue 

Batching should be disabled after writing 0 to max_latency sysfs
node. Fix it by correct the batching activation logic.

Change-Id: Idbdc883fcbb9d4ad4042512068becf69725f4650
Signed-off-by: Oliver Wang <mengmeng@codeaurora.org>
This commit is contained in:
Oliver Wang 2014-11-18 18:31:39 +08:00
parent 4fe162d75e
commit ec2e92b846
2 changed files with 11 additions and 2 deletions
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11
drivers/input/misc/lis3dh_acc.c
View File

@ -1739,6 +1739,7 @@ static int lis3dh_latency_set(struct sensors_classdev *cdev,
struct lis3dh_acc_data *acc = container_of(cdev,
struct lis3dh_acc_data, cdev);
struct i2c_client *client = acc->client;
int ret;
/* Does not support batch in while interrupt is not enabled */
if (!acc->pdata->enable_int) {
@ -1746,8 +1747,16 @@ static int lis3dh_latency_set(struct sensors_classdev *cdev,
"Cannot set batch mode, interrupt is not enabled!\n");
return -EPERM;
}
acc->use_batch = max_latency ? true : false;
acc->fifo_timeout_ms = max_latency;
acc->use_batch = max_latency ? true : false;
ret = lis3dh_acc_enable_batch(acc, max_latency);
if (ret) {
dev_err(&client->dev, "enable batch:%d failed\n", max_latency);
return ret;
}
return 0;
}

2
drivers/sensors/sensors_class.c
View File

@ -298,7 +298,7 @@ static ssize_t sensors_max_latency_store(struct device *dev,
}
/* Disable batching for this sensor */
if (latency < sensors_cdev->delay_msec) {
if ((latency < sensors_cdev->delay_msec) && (latency != 0)) {
dev_err(dev, "max_latency is less than delay_msec\n");
return -EINVAL;
}