linux-kernel - [PATCH v3] mfd: TPS65910: Make usable even if interrupt unused

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Date:	Wed, 14 Dec 2011 16:05:35 +0530
From:	Afzal Mohammed <afzal@...com>
To:	<sameo@...ux.intel.com>, <broonie@...nsource.wolfsonmicro.com>,
	<linux-kernel@...r.kernel.org>
CC:	<nsekhar@...com>, Afzal Mohammed <afzal@...com>
Subject: [PATCH v3] mfd: TPS65910: Make usable even if interrupt unused

TPS65910 can be used even if interrupt is unused.
Hence let probe succeed in case interrupt can't be
configured and let Kernel only to complain about it

Signed-off-by: Afzal Mohammed <afzal@...com>
---

v2: free irq only if registered

 drivers/mfd/tps65910-irq.c |    3 ++-
 drivers/mfd/tps65910.c     |    7 ++-----
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/tps65910-irq.c b/drivers/mfd/tps65910-irq.c
index a56be93..95c0d79 100644
--- a/drivers/mfd/tps65910-irq.c
+++ b/drivers/mfd/tps65910-irq.c
@@ -215,6 +215,7 @@ int tps65910_irq_init(struct tps65910 *tps65910, int irq,
 
 int tps65910_irq_exit(struct tps65910 *tps65910)
 {
-	free_irq(tps65910->chip_irq, tps65910);
+	if (tps65910->chip_irq)
+		free_irq(tps65910->chip_irq, tps65910);
 	return 0;
 }
diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index 6f5b8cf..04814a7 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -172,15 +172,12 @@ static int tps65910_i2c_probe(struct i2c_client *i2c,
 
 	tps65910_gpio_init(tps65910, pmic_plat_data->gpio_base);
 
-	ret = tps65910_irq_init(tps65910, init_data->irq, init_data);
-	if (ret < 0)
-		goto err;
+	tps65910_irq_init(tps65910, init_data->irq, init_data);
 
 	kfree(init_data);
 	return ret;
 
 err:
-	mfd_remove_devices(tps65910->dev);
 	kfree(tps65910);
 	kfree(init_data);
 	return ret;
@@ -190,8 +187,8 @@ static int tps65910_i2c_remove(struct i2c_client *i2c)
 {
 	struct tps65910 *tps65910 = i2c_get_clientdata(i2c);
 
-	mfd_remove_devices(tps65910->dev);
 	tps65910_irq_exit(tps65910);
+	mfd_remove_devices(tps65910->dev);
 	kfree(tps65910);
 
 	return 0;
-- 
1.7.1

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