Input: ucb1400_ts - allow passing IRQ through platfrom_data

This patch allows UCB1400 to get IRQ GPIO from platform data. In case
platform_data are not supplied or the IRQ supplied in the platform_data
is negative, fall back to the old IRQ detection algorithm.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/mfd/ucb1400_core.c b/drivers/mfd/ucb1400_core.c
index fa294b6d600a..85fd9421be94 100644
--- a/drivers/mfd/ucb1400_core.c
+++ b/drivers/mfd/ucb1400_core.c
@@ -51,6 +51,7 @@ static int ucb1400_core_probe(struct device *dev)
         struct ucb1400_ts ucb_ts;
         struct ucb1400_gpio ucb_gpio;
         struct snd_ac97 *ac97;
+        struct ucb1400_pdata *pdata = dev->platform_data;
 
         memset(&ucb_ts, 0, sizeof(ucb_ts));
         memset(&ucb_gpio, 0, sizeof(ucb_gpio));
@@ -88,6 +89,12 @@ static int ucb1400_core_probe(struct device *dev)
 
         /* TOUCHSCREEN */
         ucb_ts.ac97 = ac97;
+
+        if (pdata != NULL && pdata->irq >= 0)
+                ucb_ts.irq = pdata->irq;
+        else
+                ucb_ts.irq = -1;
+
         ucb->ucb1400_ts = platform_device_alloc("ucb1400_ts", -1);
         if (!ucb->ucb1400_ts) {
                 err = -ENOMEM;