diff options
Diffstat (limited to 'drivers/input/touchscreen/ad7879.c')
| -rw-r--r-- | drivers/input/touchscreen/ad7879.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c index 6fa714c587b4..3a016f43fb85 100644 --- a/drivers/input/touchscreen/ad7879.c +++ b/drivers/input/touchscreen/ad7879.c @@ -246,11 +246,14 @@ static void ad7879_timer(struct timer_list *t) static irqreturn_t ad7879_irq(int irq, void *handle) { struct ad7879 *ts = handle; + int error; - regmap_bulk_read(ts->regmap, AD7879_REG_XPLUS, - ts->conversion_data, AD7879_NR_SENSE); - - if (!ad7879_report(ts)) + error = regmap_bulk_read(ts->regmap, AD7879_REG_XPLUS, + ts->conversion_data, AD7879_NR_SENSE); + if (error) + dev_err_ratelimited(ts->dev, "failed to read %#02x: %d\n", + AD7879_REG_XPLUS, error); + else if (!ad7879_report(ts)) mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT); return IRQ_HANDLED; |