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authorAlejandro Gonzalez <alex.gonzalez@digi.com>2010-06-01 18:31:29 +0200
committerAlejandro Gonzalez <alex.gonzalez@digi.com>2010-06-01 18:31:29 +0200
commit6258fbb5686dc778fe16489fdb9896b0e065613b (patch)
treed5e7fb69dfa529782320ce7075ddab49b98caf80 /drivers
parentaf51b9fefd7eaedb4c1df339778cacfea18bb650 (diff)
ccwmx51: Touchscreen through PMIC issues
When the touchscreen is touched the mxc_ts kernel thread uses around 30% of the CPU power continuously even is the touchscreen is no longer used. Also, once the thread is running, the reset button no longer resets the board. This fixes both issues. Signed-off-by: Alejandro Gonzalez <alex.gonzalez@digi.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/touchscreen/mxc_ts.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/mxc_ts.c b/drivers/input/touchscreen/mxc_ts.c
index 02b34aceac47..610f31e65778 100644
--- a/drivers/input/touchscreen/mxc_ts.c
+++ b/drivers/input/touchscreen/mxc_ts.c
@@ -70,13 +70,17 @@ static int ts_thread(void *arg)
static int last_x = -1, last_y = -1, last_press = -1;
memset(&ts_sample, 0, sizeof(t_touch_screen));
-
+
/* After 2 consecutive samples with the pen up, enable irq waiting */
if (0 != pmic_adc_get_touch_sample(&ts_sample, !(wait + wait2))) {
+ msleep(20);
continue;
}
if (!(ts_sample.contact_resistance || wait))
+ {
+ msleep(20);
continue;
+ }
if (ts_sample.x_position == 0 && ts_sample.y_position == 0 &&
ts_sample.contact_resistance == 0) {