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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 10:49:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 10:49:43 -0700
commite0bc5d4a54938eedcde14005210e6c08aa9727e4 (patch)
treebcbabc1651c6bc9c138363b617714cd2349cecb3 /drivers/i2c/busses/i2c-stub.c
parent7f02ab3ce3c7e093c414fcbd93bdc591cc4419d0 (diff)
parent7c4fda1aa15fdbbd2563e7e652cd3745f92a16da (diff)
Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-nforce2: Remove redundant error messages on ACPI conflict i2c: Use <linux/io.h> instead of <asm/io.h> i2c-algo-pca: Fix coding style issues i2c-dev: Fix all coding style issues i2c-core: Fix some coding style issues i2c-gpio: Move initialization code to subsys_initcall() i2c-parport: Make template structure const i2c-dev: Remove unnecessary casts at24: Fall back to byte or word reads if needed i2c-stub: Expose the default functionality flags i2c/scx200_acb: Make PCI device ids constant i2c-i801: Fix all checkpatch warnings i2c-i801: All newer devices have all the optional features i2c-i801: Let the user disable selected driver features
Diffstat (limited to 'drivers/i2c/busses/i2c-stub.c')
-rw-r--r--drivers/i2c/busses/i2c-stub.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c
index 0c770eabe85e..b1b3447942c9 100644
--- a/drivers/i2c/busses/i2c-stub.c
+++ b/drivers/i2c/busses/i2c-stub.c
@@ -29,13 +29,16 @@
#include <linux/i2c.h>
#define MAX_CHIPS 10
+#define STUB_FUNC (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | \
+ I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | \
+ I2C_FUNC_SMBUS_I2C_BLOCK)
static unsigned short chip_addr[MAX_CHIPS];
module_param_array(chip_addr, ushort, NULL, S_IRUGO);
MODULE_PARM_DESC(chip_addr,
"Chip addresses (up to 10, between 0x03 and 0x77)");
-static unsigned long functionality = ~0UL;
+static unsigned long functionality = STUB_FUNC;
module_param(functionality, ulong, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(functionality, "Override functionality bitfield");
@@ -156,9 +159,7 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
static u32 stub_func(struct i2c_adapter *adapter)
{
- return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
- I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
- I2C_FUNC_SMBUS_I2C_BLOCK) & functionality;
+ return STUB_FUNC & functionality;
}
static const struct i2c_algorithm smbus_algorithm = {