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[PATCH 2/3] wm97xx-core: Use IRQF_SAMPLE_RANDOM

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From: Mark Brown <broonie@...>
To: Andrew Morton <akpm@...>, Dmitry Torokhov <dtor@...>, Jiri Kosina <jkosina@...>
Cc: <linux-input@...>, <linux-kernel@...>, Mark Brown <broonie@...>
Subject: [PATCH 2/3] wm97xx-core: Use IRQF_SAMPLE_RANDOM
Date: Monday, April 14, 2008 - 1:39 pm

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>
---
 drivers/input/touchscreen/wm97xx-core.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index e27b1e0..fec07c2 100644
--- 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");
-- 
1.5.5

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Messages in current thread:
WM97xx touchscreen updates, Mark Brown, (Mon Apr 14, 1:38 pm)
[PATCH 1/3] wm97xx-core: Only schedule interrupt handler if ..., Mark Brown, (Mon Apr 14, 1:39 pm)
Re: [PATCH 1/3] wm97xx-core: Only schedule interrupt handler..., Dmitry Torokhov, (Mon Apr 14, 2:10 pm)
Re: [PATCH 1/3] wm97xx-core: Only schedule interrupt handler..., Mark Brown, (Tue Apr 15, 4:48 am)
Re: [PATCH 1/3] wm97xx-core: Only schedule interrupt handler..., Dmitry Torokhov, (Tue Apr 15, 9:02 am)
Re: [PATCH 1/3] wm97xx-core: Only schedule interrupt handler..., Mark Brown, (Tue Apr 15, 10:42 am)
[PATCH 2/3] wm97xx-core: Use IRQF_SAMPLE_RANDOM, Mark Brown, (Mon Apr 14, 1:39 pm)
[PATCH 3/3] wm97xx-core: Support use as a wakeup source, Mark Brown, (Mon Apr 14, 1:39 pm)
Re: [PATCH 3/3] wm97xx-core: Support use as a wakeup source, Dmitry Torokhov, (Mon Apr 14, 4:34 pm)
Re: [PATCH 3/3] wm97xx-core: Support use as a wakeup source, David Brownell, (Mon Apr 14, 8:29 pm)
Re: [PATCH 3/3] wm97xx-core: Support use as a wakeup source, Mark Brown, (Tue Apr 15, 8:18 am)