linux-kernel - [PATCH] mfd: da9052-i2c: Remove duplicate test for I2C_FUNC_SMBUS_BYTE

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Message-ID: <1408110797.6965.1.camel@phoenix>
Date:	Fri, 15 Aug 2014 21:53:17 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Lee Jones <lee.jones@...aro.org>,
	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	David Dajun Chen <dchen@...semi.com>,
	Support Opensource <support.opensource@...semi.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] mfd: da9052-i2c: Remove duplicate test for
 I2C_FUNC_SMBUS_BYTE_DATA functionality

Since commit b42261078a91 ("regmap: i2c: fallback to SMBus if the adapter
does not support standard I2C"), regmap-i2c will check the
I2C_FUNC_SMBUS_[BYTE|WORD]_DATA functionality based on the regmap_config
setting if the adapter does not support standard I2C.

So remove the I2C_FUNC_SMBUS_BYTE_DATA functionality check in the driver code.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/mfd/da9052-i2c.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/mfd/da9052-i2c.c b/drivers/mfd/da9052-i2c.c
index 6da8ec8..ec39287 100644
--- a/drivers/mfd/da9052-i2c.c
+++ b/drivers/mfd/da9052-i2c.c
@@ -140,13 +140,6 @@ static int da9052_i2c_probe(struct i2c_client *client,
 	if (!da9052)
 		return -ENOMEM;
 
-	if (!i2c_check_functionality(client->adapter,
-				     I2C_FUNC_SMBUS_BYTE_DATA)) {
-		dev_info(&client->dev, "Error in %s:i2c_check_functionality\n",
-			 __func__);
-		return  -ENODEV;
-	}
-
 	da9052->dev = &client->dev;
 	da9052->chip_irq = client->irq;
 	da9052->fix_io = da9052_i2c_fix;
-- 
1.9.1



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