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| author | Rodrigo Alencar <rodrigo.alencar@analog.com> | 2026-07-16 13:14:20 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jonathan.cameron@oss.qualcomm.com> | 2026-07-19 23:16:21 +0100 |
| commit | 92b7963fb544d42b0d974bfd86921566b404fabc (patch) | |
| tree | aaa0f346d9fcf6102549f3a10a7a39e89ef7de56 | |
| parent | 797d37e46c947dda659e0d523fbb936679025950 (diff) | |
| download | linux-92b7963fb544d42b0d974bfd86921566b404fabc.tar.gz linux-92b7963fb544d42b0d974bfd86921566b404fabc.zip | |
iio: dac: ad5686: introduce sync operation
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>
| -rw-r--r-- | drivers/iio/dac/ad5686.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/iio/dac/ad5686.h b/drivers/iio/dac/ad5686.h index 32cb3931413c..ae9aeda2d201 100644 --- a/drivers/iio/dac/ad5686.h +++ b/drivers/iio/dac/ad5686.h @@ -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) |