a80a0bbee4
Most of the GPIO expanders supported by the max732x driver have interrupt generation capability by reporting changes on input pins through an INT# pin. This patch implements the irq_chip functionnality (edge detection only). Signed-off-by: Marc Zyngier <maz@misterjones.org> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Jebediah Huang <jebediah.huang@gmail.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 lines
534 B
C
23 lines
534 B
C
#ifndef __LINUX_I2C_MAX732X_H
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#define __LINUX_I2C_MAX732X_H
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/* platform data for the MAX732x 8/16-bit I/O expander driver */
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struct max732x_platform_data {
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/* number of the first GPIO */
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unsigned gpio_base;
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/* interrupt base */
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int irq_base;
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void *context; /* param to setup/teardown */
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int (*setup)(struct i2c_client *client,
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unsigned gpio, unsigned ngpio,
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void *context);
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int (*teardown)(struct i2c_client *client,
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unsigned gpio, unsigned ngpio,
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void *context);
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};
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#endif /* __LINUX_I2C_MAX732X_H */
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