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iio: dac: ad5686: introduce sync operation

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Add sync() to operation to ad5686_bus_ops, which can be used to flush
multiple pending data transfers at once. This is going to be used when
implementing triggered buffer support.

Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
This commit is contained in:
Rodrigo Alencar 2026-07-16 13:14:20 +01:00 committed by Jonathan Cameron
parent 797d37e46c
commit 92b7963fb5
1 changed files with 9 additions and 1 deletions
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10
drivers/iio/dac/ad5686.h
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@ -70,10 +70,12 @@ struct ad5686_state;
* struct ad5686_bus_ops - bus specific read/write operations
* @read: read a register value at the given address
* @write: write a command, address and value to the device
* @sync: ensure the completion of the write operation (optional)
*/
struct ad5686_bus_ops {
int (*read)(struct ad5686_state *st, u8 addr);
int (*write)(struct ad5686_state *st, u8 cmd, u8 addr, u16 val);
int (*sync)(struct ad5686_state *st);
};
/**
@ -162,7 +164,13 @@ int ad5686_probe(struct device *dev,
static inline int ad5686_write(struct ad5686_state *st, u8 cmd, u8 addr, u16 val)
{
return st->ops->write(st, cmd, addr, val);
int ret;
ret = st->ops->write(st, cmd, addr, val);
if (ret)
return ret;
return st->ops->sync ? st->ops->sync(st) : 0;
}
static inline int ad5686_read(struct ad5686_state *st, u8 addr)