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authorJeff LaBundy <jeff@labundy.com>2019-06-09 10:16:51 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2019-06-09 10:32:54 -0700
commita876697b0ad1cba4d56c72395b330691aafa1593 (patch)
treef389c95d54f3fc3e77b55762781336797c811e5a /drivers/input
parent7c7da40da1640ce6814dab1e8031b44e19e5a3f6 (diff)
Input: iqs5xx - get axis info before calling input_mt_init_slots()
Calling input_mt_init_slots() copies ABS_MT_POSITION_X to ABS_X and so on, but doing so before calling touchscreen_parse_properties() leaves ABS_X min = max = 0 which may prompt an X server to ignore the device. To solve this problem, wait to call input_mt_init_slots() until all absolute axis information has been resolved (whether that's through device tree via touchscreen_parse_properties() or from reading from the device directly). Signed-off-by: Jeff LaBundy <jeff@labundy.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/touchscreen/iqs5xx.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/input/touchscreen/iqs5xx.c b/drivers/input/touchscreen/iqs5xx.c
index b832fe062645..4f6fe8cc8efa 100644
--- a/drivers/input/touchscreen/iqs5xx.c
+++ b/drivers/input/touchscreen/iqs5xx.c
@@ -502,14 +502,6 @@ static int iqs5xx_axis_init(struct i2c_client *client)
input_set_capability(input, EV_ABS, ABS_MT_POSITION_Y);
input_set_capability(input, EV_ABS, ABS_MT_PRESSURE);
- error = input_mt_init_slots(input,
- IQS5XX_NUM_CONTACTS, INPUT_MT_DIRECT);
- if (error) {
- dev_err(&client->dev,
- "Failed to initialize slots: %d\n", error);
- return error;
- }
-
input_set_drvdata(input, iqs5xx);
iqs5xx->input = input;
}
@@ -591,9 +583,19 @@ static int iqs5xx_axis_init(struct i2c_client *client)
if (error)
return error;
- return iqs5xx_write_word(client,
- prop.swap_x_y ? IQS5XX_X_RES : IQS5XX_Y_RES,
- max_y);
+ error = iqs5xx_write_word(client,
+ prop.swap_x_y ? IQS5XX_X_RES : IQS5XX_Y_RES,
+ max_y);
+ if (error)
+ return error;
+
+ error = input_mt_init_slots(iqs5xx->input, IQS5XX_NUM_CONTACTS,
+ INPUT_MT_DIRECT);
+ if (error)
+ dev_err(&client->dev, "Failed to initialize slots: %d\n",
+ error);
+
+ return error;
}
static int iqs5xx_dev_init(struct i2c_client *client)