From: Vasily Khoruzhick <anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Sebastian Andrzej Siewior
<bigeasy-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: Vasily Khoruzhick <anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: [PATCH 2/2] i2c-pxa2xx: Don't clear isr bits too early
Date: Sun, 13 Mar 2011 15:53:29 +0200 [thread overview]
Message-ID: <1300024409-32587-2-git-send-email-anarsoul@gmail.com> (raw)
In-Reply-To: <1300024409-32587-1-git-send-email-anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
isr is passed later into i2c_pxa_irq_txempty and
i2c_pxa_irq_rxfull and they may use some other bits
than irq sources.
Signed-off-by: Vasily Khoruzhick <anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/i2c/busses/i2c-pxa.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 312d369..cab529d 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -966,8 +966,7 @@ static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id)
struct pxa_i2c *i2c = dev_id;
u32 isr = readl(_ISR(i2c));
- isr &= VALID_INT_SOURCE;
- if (!isr)
+ if (!(isr & VALID_INT_SOURCE))
return IRQ_NONE;
if (i2c_debug > 2 && 0) {
@@ -984,7 +983,7 @@ static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id)
/*
* Always clear all pending IRQs.
*/
- writel(isr, _ISR(i2c));
+ writel(isr & VALID_INT_SOURCE, _ISR(i2c));
if (isr & ISR_SAD)
i2c_pxa_slave_start(i2c, isr);
--
1.7.4.1
WARNING: multiple messages have this Message-ID (diff)
From: anarsoul@gmail.com (Vasily Khoruzhick)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] i2c-pxa2xx: Don't clear isr bits too early
Date: Sun, 13 Mar 2011 15:53:29 +0200 [thread overview]
Message-ID: <1300024409-32587-2-git-send-email-anarsoul@gmail.com> (raw)
In-Reply-To: <1300024409-32587-1-git-send-email-anarsoul@gmail.com>
isr is passed later into i2c_pxa_irq_txempty and
i2c_pxa_irq_rxfull and they may use some other bits
than irq sources.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
---
drivers/i2c/busses/i2c-pxa.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 312d369..cab529d 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -966,8 +966,7 @@ static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id)
struct pxa_i2c *i2c = dev_id;
u32 isr = readl(_ISR(i2c));
- isr &= VALID_INT_SOURCE;
- if (!isr)
+ if (!(isr & VALID_INT_SOURCE))
return IRQ_NONE;
if (i2c_debug > 2 && 0) {
@@ -984,7 +983,7 @@ static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id)
/*
* Always clear all pending IRQs.
*/
- writel(isr, _ISR(i2c));
+ writel(isr & VALID_INT_SOURCE, _ISR(i2c));
if (isr & ISR_SAD)
i2c_pxa_slave_start(i2c, isr);
--
1.7.4.1
next prev parent reply other threads:[~2011-03-13 13:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-13 13:53 [PATCH 1/2] i2c-pxa2xx: Fix register offsets Vasily Khoruzhick
2011-03-13 13:53 ` Vasily Khoruzhick
[not found] ` <1300024409-32587-1-git-send-email-anarsoul-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-13 13:53 ` Vasily Khoruzhick [this message]
2011-03-13 13:53 ` [PATCH 2/2] i2c-pxa2xx: Don't clear isr bits too early Vasily Khoruzhick
2011-03-14 14:15 ` [PATCH 1/2] i2c-pxa2xx: Fix register offsets Sebastian Andrzej Siewior
2011-03-14 14:15 ` Sebastian Andrzej Siewior
2011-03-14 14:29 ` Ben Dooks
2011-03-14 14:29 ` Ben Dooks
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