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authorAaron Sierra <asierra@xes-inc.com>2015-03-31 14:35:36 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-03-31 14:41:33 -0700
commitbbdb38a22e8a5197a6db1e4d22d7e5c6c368e7f7 (patch)
tree10d1a20387b6dec70099c808d87a3e15217e0a3a /drivers/input/touchscreen/tsc2007.c
parent709583e894afad7f33add66953026ceb82cdf115 (diff)
Input: tsc2007 - Convert msecs to jiffies only once
Eliminate redundant calculations by performing millisecond to jiffy calculations once during driver initialization. Signed-off-by: Aaron Sierra <asierra@xes-inc.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/touchscreen/tsc2007.c')
-rw-r--r--drivers/input/touchscreen/tsc2007.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 1bf9906b5a3f..ccc8aa615709 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -75,7 +75,7 @@ struct tsc2007 {
u16 model;
u16 x_plate_ohms;
u16 max_rt;
- unsigned long poll_period;
+ unsigned long poll_period; /* in jiffies */
int fuzzx;
int fuzzy;
int fuzzz;
@@ -214,8 +214,7 @@ static irqreturn_t tsc2007_soft_irq(int irq, void *handle)
dev_dbg(&ts->client->dev, "ignored pressure %d\n", rt);
}
- wait_event_timeout(ts->wait, ts->stopped,
- msecs_to_jiffies(ts->poll_period));
+ wait_event_timeout(ts->wait, ts->stopped, ts->poll_period);
}
dev_dbg(&ts->client->dev, "UP\n");
@@ -314,9 +313,9 @@ static int tsc2007_probe_dt(struct i2c_client *client, struct tsc2007 *ts)
ts->fuzzz = val32;
if (!of_property_read_u64(np, "ti,poll-period", &val64))
- ts->poll_period = val64;
+ ts->poll_period = msecs_to_jiffies(val64);
else
- ts->poll_period = 1;
+ ts->poll_period = msecs_to_jiffies(1);
if (!of_property_read_u32(np, "ti,x-plate-ohms", &val32)) {
ts->x_plate_ohms = val32;
@@ -350,7 +349,7 @@ static int tsc2007_probe_pdev(struct i2c_client *client, struct tsc2007 *ts,
ts->model = pdata->model;
ts->x_plate_ohms = pdata->x_plate_ohms;
ts->max_rt = pdata->max_rt ? : MAX_12BIT;
- ts->poll_period = pdata->poll_period ? : 1;
+ ts->poll_period = msecs_to_jiffies(pdata->poll_period ? : 1);
ts->get_pendown_state = pdata->get_pendown_state;
ts->clear_penirq = pdata->clear_penirq;
ts->fuzzx = pdata->fuzzx;