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authorChristopher Hudson <chris.hudson.comp.eng@gmail.com>2012-03-16 22:47:47 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-03-16 22:49:32 -0700
commit043916608c4b309e98a1650520ed4e88ec5e9123 (patch)
treedc6dadf7713315f77d13d07a00fd971f314c4ae2 /drivers/input
parent104594b01ce750c91a19e9f1d8fe6b24ea8f9a59 (diff)
Input: kxtj9 - who_am_i check value and initial data rate fixes
Several fixes based on customer feedback: * WHO_AM_I value has changed since preliminary parts used for initial testing; * Output of le16_to_cpu must be saved to memory before shifting to preserve sign; * Initial data rate was not extracted from data control register init. This was causing the initial data rate to be set to maximum until it was changed. To fix this problem, it made more sense to specify initial data rate and extract the register mask from that. Signed-off-by: Chris Hudson <chudson@kionix.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/misc/kxtj9.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/input/misc/kxtj9.c b/drivers/input/misc/kxtj9.c
index 783597a9a64a..21edaba489be 100644
--- a/drivers/input/misc/kxtj9.c
+++ b/drivers/input/misc/kxtj9.c
@@ -41,6 +41,14 @@
#define PC1_ON (1 << 7)
/* Data ready funtion enable bit: set during probe if using irq mode */
#define DRDYE (1 << 5)
+/* DATA CONTROL REGISTER BITS */
+#define ODR12_5F 0
+#define ODR25F 1
+#define ODR50F 2
+#define ODR100F 3
+#define ODR200F 4
+#define ODR400F 5
+#define ODR800F 6
/* INTERRUPT CONTROL REGISTER 1 BITS */
/* Set these during probe if using irq mode */
#define KXTJ9_IEL (1 << 3)
@@ -116,9 +124,13 @@ static void kxtj9_report_acceleration_data(struct kxtj9_data *tj9)
if (err < 0)
dev_err(&tj9->client->dev, "accelerometer data read failed\n");
- x = le16_to_cpu(acc_data[tj9->pdata.axis_map_x]) >> tj9->shift;
- y = le16_to_cpu(acc_data[tj9->pdata.axis_map_y]) >> tj9->shift;
- z = le16_to_cpu(acc_data[tj9->pdata.axis_map_z]) >> tj9->shift;
+ x = le16_to_cpu(acc_data[tj9->pdata.axis_map_x]);
+ y = le16_to_cpu(acc_data[tj9->pdata.axis_map_y]);
+ z = le16_to_cpu(acc_data[tj9->pdata.axis_map_z]);
+
+ x >>= tj9->shift;
+ y >>= tj9->shift;
+ z >>= tj9->shift;
input_report_abs(tj9->input_dev, ABS_X, tj9->pdata.negate_x ? -x : x);
input_report_abs(tj9->input_dev, ABS_Y, tj9->pdata.negate_y ? -y : y);
@@ -487,7 +499,7 @@ static int __devinit kxtj9_verify(struct kxtj9_data *tj9)
goto out;
}
- retval = retval != 0x06 ? -EIO : 0;
+ retval = (retval != 0x07 && retval != 0x08) ? -EIO : 0;
out:
kxtj9_device_power_off(tj9);
@@ -537,7 +549,7 @@ static int __devinit kxtj9_probe(struct i2c_client *client,
i2c_set_clientdata(client, tj9);
tj9->ctrl_reg1 = tj9->pdata.res_12bit | tj9->pdata.g_range;
- tj9->data_ctrl = tj9->pdata.data_odr_init;
+ tj9->last_poll_interval = tj9->pdata.init_interval;
if (client->irq) {
/* If in irq mode, populate INT_CTRL_REG1 and enable DRDY. */