linux-kernel - [PATCH v5 2/3] i2c: xilinx: Do not enable irq before irq handler

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Date:	Thu, 19 Dec 2013 16:05:05 +0100
From:	Michal Simek <michal.simek@...inx.com>
To:	linux-kernel@...r.kernel.org, monstr@...str.eu, wsa@...-dreams.de,
	joe@...ches.com
Cc:	Jingoo Han <jg1.han@...sung.com>,
	Jean Delvare <khali@...ux-fr.org>,
	Peter Korsgaard <jacmet@...site.dk>, linux-i2c@...r.kernel.org
Subject: [PATCH v5 2/3] i2c: xilinx: Do not enable irq before irq handler

IRQ handler has to be register first before IRQ
is enabled in xiic_reinit().

Signed-off-by: Michal Simek <michal.simek@...inx.com>

---

Changes in v5: None
Changes in v4: None
Changes in v3:
- New patch in this patchset based on my discussion with Wolfram
  https://lkml.org/lkml/2013/10/4/148

Changes in v2: None

 drivers/i2c/busses/i2c-xiic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 5e5fae7..2d55989 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -731,8 +731,6 @@ static int xiic_i2c_probe(struct platform_device *pdev)
 	i2c->adap.dev.parent = &pdev->dev;
 	i2c->adap.dev.of_node = pdev->dev.of_node;

-	xiic_reinit(i2c);
-
 	spin_lock_init(&i2c->lock);
 	init_waitqueue_head(&i2c->wait);
 	ret = request_irq(irq, xiic_isr, 0, pdev->name, i2c);
@@ -741,6 +739,8 @@ static int xiic_i2c_probe(struct platform_device *pdev)
 		goto request_irq_failed;
 	}

+	xiic_reinit(i2c);
+
 	/* add i2c adapter to i2c tree */
 	ret = i2c_add_adapter(&i2c->adap);
 	if (ret) {
--
1.8.2.3


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