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>

diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 1bf9906b5a3fc189276c39d065a2cc58b36ddbd3..ccc8aa6157096896511ab7777d6d8f22161c12e1 100644 (file)
--- 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;