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authorRichard Röjfors <richard.rojfors.ext@mocean-labs.com>2009-07-24 23:14:17 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2009-07-26 11:21:03 -0700
commit703490ff7eaff03e412683da3d8367b5190a71ca (patch)
tree71e4b3b41dd0d70a859d9137b656fbfb0d756bbb /drivers/input/touchscreen
parentcad065fd1e95003444e8528f801f52164cb78561 (diff)
Input: tsc2007 - do not read coordinates during probe
Don't read coordinates during probe of the driver, just power down the controller and wait for interrupts. Signed-off-by: Richard Röjfors<richard.rojfors.ext@mocean-labs.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/touchscreen')
-rw-r--r--drivers/input/touchscreen/tsc2007.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 8105bf640151..f710af4d0ff7 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -184,7 +184,7 @@ static int tsc2007_read_values(struct tsc2007 *tsc)
tsc->tc.z1 = tsc2007_xfer(tsc, READ_Z1);
tsc->tc.z2 = tsc2007_xfer(tsc, READ_Z2);
- /* power down */
+ /* Prepare for next touch reading - power down ADC, enable PENIRQ */
tsc2007_xfer(tsc, PWRDOWN);
return 0;
@@ -311,7 +311,8 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
i2c_set_clientdata(client, ts);
- tsc2007_read_values(ts);
+ /* Prepare for touch readings - power down ADC and enable PENIRQ */
+ tsc2007_xfer(ts, PWRDOWN);
return 0;