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i2c: New-style devices can support driver model wakeup flags

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We need to be able to flag I2C devices, such as RTCs, which can issue wake
events (usually through IRQ lines).  This adds an i2c_board_info.flags bit,
and uses it to initialize the i2c device node.  (And shrinks a few lines
that were overly long.)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
David Brownell 2007-10-13 23:56:29 +02:00 committed by Jean Delvare
parent cee37ae407
commit 3bbb835d4c
2 changed files with 7 additions and 4 deletions
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4
drivers/i2c/i2c-core.c
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@ -226,7 +226,9 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
client->adapter = adap;
client->dev.platform_data = info->platform_data;
client->flags = info->flags;
device_init_wakeup(&client->dev, info->flags & I2C_CLIENT_WAKE);
client->flags = info->flags & ~I2C_CLIENT_WAKE;
client->addr = info->addr;
client->irq = info->irq;

7
include/linux/i2c.h
View File

@ -342,9 +342,10 @@ static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data)
}
/*flags for the client struct: */
#define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */
#define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */
/* Must equal I2C_M_TEN below */
#define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */
#define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */
/* Must equal I2C_M_TEN below */
#define I2C_CLIENT_WAKE 0x80 /* for board_info; true iff can wake */
/* i2c adapter classes (bitmask) */
#define I2C_CLASS_HWMON (1<<0) /* lm_sensors, ... */