Input: wm97xx-core - use IRQF_SAMPLE_RANDOM

The touchscreen interrupt is driven by human input which can reasonably
be used to provide entropy.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index e27b1e0..fec07c2 100644 (file)
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -355,7 +355,8 @@ static int wm97xx_init_pen_irq(struct wm97xx *wm)
         * provided. */
        BUG_ON(!wm->mach_ops->irq_enable);
 
-       if (request_irq(wm->pen_irq, wm97xx_pen_interrupt, IRQF_SHARED,
+       if (request_irq(wm->pen_irq, wm97xx_pen_interrupt,
+                       IRQF_SHARED | IRQF_SAMPLE_RANDOM,
                        "wm97xx-pen", wm)) {
                dev_err(wm->dev,
                        "Failed to register pen down interrupt, polling");