linux-kernel - [PATCHv2] gpio-mcp23s08: Build I2C support even when CONFIG

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Message-ID: <20121107045059.GA12752@dev.danweeks.net>
Date:	Tue, 6 Nov 2012 23:51:05 -0500
From:	"Daniel M. Weeks" <dan@...weeks.net>
To:	Grant Likely <grant.likely@...retlab.ca>,
	Linus Walleij <linus.walleij@...aro.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCHv2] gpio-mcp23s08: Build I2C support even when CONFIG_I2C=m

The driver has both SPI and I2C pieces. The appropriate pieces are built based
on whether SPI and/or I2C is/are enabled. However, it was only checking if I2C
was built-in, never if it was built as a module. This patch checks for either
since building both this driver and I2C as modules is possible.

Signed-off-by: Daniel M. Weeks <dan@...weeks.net>
---
v2: use IS_ENABLED macro

 drivers/gpio/gpio-mcp23s08.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c
index 0f42518..ce1c847 100644
--- a/drivers/gpio/gpio-mcp23s08.c
+++ b/drivers/gpio/gpio-mcp23s08.c
@@ -77,7 +77,7 @@ struct mcp23s08_driver_data {
 
 /*----------------------------------------------------------------------*/
 
-#ifdef CONFIG_I2C
+#if IS_ENABLED(CONFIG_I2C)
 
 static int mcp23008_read(struct mcp23s08 *mcp, unsigned reg)
 {
@@ -399,7 +399,7 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
 		break;
 #endif /* CONFIG_SPI_MASTER */
 
-#ifdef CONFIG_I2C
+#if IS_ENABLED(CONFIG_I2C)
 	case MCP_TYPE_008:
 		mcp->ops = &mcp23008_ops;
 		mcp->chip.ngpio = 8;
@@ -473,7 +473,7 @@ fail:
 
 /*----------------------------------------------------------------------*/
 
-#ifdef CONFIG_I2C
+#if IS_ENABLED(CONFIG_I2C)
 
 static int __devinit mcp230xx_probe(struct i2c_client *client,
 				    const struct i2c_device_id *id)
-- 
Daniel M. Weeks

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